#1618 Update Cap+ radio & group parsing, process TXI & voice frame encryption parameters, and many other changes to the DMR message processing.

.idea/misc.xml

@@ -4,7 +4,7 @@
   <component name="FrameworkDetectionExcludesConfiguration">
     <file type="web" url="file://$PROJECT_DIR$" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_X" default="true" project-jdk-name="liberica-20" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_20" default="true" project-jdk-name="liberica-20" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

src/main/java/io/github/dsheirer/edac/BPTC_16_2.java

@@ -0,0 +1,125 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.edac;
+
+import io.github.dsheirer.bits.BinaryMessage;
+import io.github.dsheirer.bits.CorrectedBinaryMessage;
+
+/**
+ * Block Product Turbo Code 16/2 for decoding a DMR Voice Frame F payload from the 32-bit EMB field.
+ * <p>
+ * See ETSI TS 102 361-1 B.2.2.1 and B.2.2.2
+ */
+public class BPTC_16_2
+{
+    private static final int[] DEINTERLEAVE = new int[]{0, 24, 1, 25, 2, 26, 3, 27, 4, 28, 5, 29, 6, 30, 7, 31, 8, 16,
+            9, 17, 10, 18, 11, 19, 12, 20, 13, 21, 14, 22, 15, 23};
+
+    /**
+     * Unscramble and perform FEC checks per paragraph B.2.2.1 for Non-Reverse Channel Single Burst
+     *
+     * @param message with 32 interleaved bits.
+     * @return descrambled and error checked message or null if the process fails or there are too many errors.
+     */
+    public static CorrectedBinaryMessage decodeShortBurst(CorrectedBinaryMessage message)
+    {
+        CorrectedBinaryMessage deinterleaved = deinterleave(message);
+        int fec = Hamming16.checkAndCorrect(deinterleaved, 0);
+
+        if(fec == 2) //0 or 1 is good, 2 = uncorrectable errors
+        {
+            return null;
+        }
+
+        //Check for even parity.  Bits 0-15 should be the same as bits 16-31.
+        for(int x = 0; x < 16; x++)
+        {
+            if(deinterleaved.get(x) ^ deinterleaved.get(x + 16))
+            {
+                return null;
+            }
+        }
+
+        return deinterleaved;
+    }
+
+    /**
+     * Unscramble and perform FEC checks per paragraph B.2.2.2 for Reverse Channel Single Burst
+     *
+     * @param binaryMessage with 32 interleaved bits.
+     * @return descrambled and error checked message or null if the process fails or there are too many errors.
+     */
+    public static CorrectedBinaryMessage decodeReverseChannel(CorrectedBinaryMessage message)
+    {
+        CorrectedBinaryMessage deinterleaved = deinterleave(message);
+        System.out.println(" DEINTER: " + deinterleaved.toHexString());
+        int fec = Hamming16.checkAndCorrect(deinterleaved, 0);
+        System.out.println(" DECODED: " + deinterleaved.toHexString());
+        System.out.println("FEC:" + fec);
+        if(fec == 2) //0 or 1 is good, 2 = uncorrectable errors
+        {
+            return null;
+        }
+
+        //Check for odd parity.  Bits 0-15 should be opposite of bits 16-31.
+        for(int x = 0; x < 16; x++)
+        {
+            if(deinterleaved.get(x) == deinterleaved.get(x + 16))
+            {
+                return null;
+            }
+        }
+
+        return deinterleaved;
+    }
+
+    /**
+     * Performs deinterleave of the interleaved message.
+     *
+     * @param original to deinterleave
+     * @return deinterleaved message
+     */
+    public static CorrectedBinaryMessage deinterleave(CorrectedBinaryMessage original)
+    {
+        CorrectedBinaryMessage delinterleaved = new CorrectedBinaryMessage(32);
+        for(int x = 0; x < 32; x++)
+        {
+            if(original.get(x))
+            {
+                delinterleaved.set(DEINTERLEAVE[x]);
+            }
+        }
+
+        return delinterleaved;
+    }
+
+    public static void main(String[] args)
+    {
+        String[] msgs = new String[]{"05030A03", "35003A00", "1C6D2C9E"};
+
+        for(String msg : msgs)
+        {
+            CorrectedBinaryMessage original = new CorrectedBinaryMessage(BinaryMessage.loadHex(msg));
+            System.out.println("ORIGINAL: " + original.toHexString());
+            CorrectedBinaryMessage decoded = decodeReverseChannel(original);
+            System.out.println("-------------------------");
+        }
+    }
+}

src/main/java/io/github/dsheirer/edac/CRCUtil.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -226,17 +226,19 @@ public class CRCUtil
     {
         mLog.debug("Starting");
 
-        //DMR message
+        long poly = 0x13l;
-//        String raw = "100110010001000000001001000000001111011011010000011001010000000000000000000000001100001000001011";
+        long[] checksums = generate(32, 4, poly, 0, true);
-        String raw = "101010000000000000110110100000101101011011010000011001111100000000000011100101001001111010001110";
-        mLog.debug(raw);
-        raw = "101010000000000000110110100000101101011011010000011001111100000000000011100101000000000000000000";
-        BinaryMessage message = BinaryMessage.load(raw);
-        mLog.debug(message.toString());
 
-        long polynomial = 0x11021l;
+        StringBuilder sb = new StringBuilder();
-        decode(message, 0, 80, polynomial, 16);
+        sb.append("private static int[] CHECKSUMS = new int[]{");
-        mLog.debug(message.toString());
+        for(long checksum: checksums)
-        mLog.debug("Finished");
+        {
+            sb.append("0x").append(Long.toHexString(checksum).toUpperCase());
+            sb.append(",");
+        }
+
+        sb.append("};");
+
+        System.out.println("Checksums:\n" + sb);
     }
 }

src/main/java/io/github/dsheirer/edac/Golay24.java

@@ -1,3 +1,22 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
 package io.github.dsheirer.edac;
 
 import io.github.dsheirer.bits.BinaryMessage;
@@ -5,27 +24,6 @@ import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-/*******************************************************************************
- *     SDR Trunk 
- *     Copyright (C) 2014 Dennis Sheirer
- *
- *     This program is free software: you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation, either version 3 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public License
- *     along with this program.  If not, see <http://www.gnu.org/licenses/>
- *     -----------------------------------------------------------------------
- *     Galois24 decoder based on Hank Wallace's tutorial/algorithm located at:
- *     http://www.aqdi.com/golay.htm
- ******************************************************************************/
-
 /**
  * Galois 24/12/7 decoder
  */
@@ -160,4 +158,17 @@ public class Golay24
 
         return (checksum ^ calculated);
     }
+
+    public static void main(String[] args)
+    {
+//        CorrectedBinaryMessage bm = new CorrectedBinaryMessage(BinaryMessage.loadHex("F3BB20"));
+//        CorrectedBinaryMessage bm = new CorrectedBinaryMessage(BinaryMessage.loadHex("F0C5C0"));
+        CorrectedBinaryMessage bm = new CorrectedBinaryMessage(BinaryMessage.loadHex("AFAC00"));
+
+        System.out.println("M:" + bm.toHexString());
+        int a = Golay24.checkAndCorrect(bm, 0);
+        System.out.println("M:" + bm.toHexString());
+
+        System.out.println("A:" + a);
+    }
 }

src/main/java/io/github/dsheirer/gui/dmr/DMRRecordingViewer.java

@@ -459,6 +459,12 @@ public class DMRRecordingViewer extends VBox
         if(mFindText == null)
         {
             mFindText = new TextField();
+            mFindText.setOnKeyPressed(event -> {
+                if(event.getCode().equals(KeyCode.ENTER))
+                {
+                    getFindButton().fire();
+                }
+            });
             mFindText.textProperty().addListener((observable, oldValue, newValue) -> updateFilters());
         }
 

src/main/java/io/github/dsheirer/module/decode/dmr/DMRDecoderState.java

@@ -65,8 +65,8 @@ import io.github.dsheirer.module.decode.dmr.message.data.lc.full.UnitToUnitVoice
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.hytera.HyteraGroupVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.hytera.HyteraUnitToUnitVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.CapacityPlusEncryptedVoiceChannelUser;
-import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.CapacityPlusGroupVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.CapacityPlusWideAreaVoiceChannelUser;
+import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.MotorolaGroupVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.CapacityPlusRestChannel;
 import io.github.dsheirer.module.decode.dmr.message.data.packet.DMRPacketMessage;
 import io.github.dsheirer.module.decode.dmr.message.data.packet.UDTShortMessageService;
@@ -646,12 +646,12 @@ public class DMRDecoderState extends TimeslotDecoderState
                     }
                     else
                     {
-                        DecodeEvent event = mDetectedCallEventsMap.get(channel.getLogicalSlotNumber());
+                        DecodeEvent event = mDetectedCallEventsMap.get(channel.getValue());
 
                         if(isStale(event, csbk.getTimestamp(), csbk.getIdentifiers()))
                         {
                             event = getDecodeEvent(csbk, DecodeEventType.DATA_CALL, channel, mergedIdentifiers);
-                            mDetectedCallEventsMap.put(channel.getLogicalSlotNumber(), event);
+                            mDetectedCallEventsMap.put(channel.getValue(), event);
                         }
                         else
                         {
@@ -679,12 +679,12 @@ public class DMRDecoderState extends TimeslotDecoderState
                     }
                     else
                     {
-                        DecodeEvent event = mDetectedCallEventsMap.get(channel.getLogicalSlotNumber());
+                        DecodeEvent event = mDetectedCallEventsMap.get(channel.getValue());
 
                         if(isStale(event, csbk.getTimestamp(), csbk.getIdentifiers()))
                         {
                             event = getDecodeEvent(csbk, DecodeEventType.CALL_GROUP, channel, mergedIdentifiers);
-                            mDetectedCallEventsMap.put(channel.getLogicalSlotNumber(), event);
+                            mDetectedCallEventsMap.put(channel.getValue(), event);
                         }
                         else
                         {
@@ -711,12 +711,12 @@ public class DMRDecoderState extends TimeslotDecoderState
                     }
                     else
                     {
-                        DecodeEvent event = mDetectedCallEventsMap.get(channel.getLogicalSlotNumber());
+                        DecodeEvent event = mDetectedCallEventsMap.get(channel.getValue());
 
                         if(isStale(event, csbk.getTimestamp(), csbk.getIdentifiers()))
                         {
                             event = getDecodeEvent(csbk, DecodeEventType.CALL_UNIT_TO_UNIT, channel, mergedIdentifiers);
-                            mDetectedCallEventsMap.put(channel.getLogicalSlotNumber(), event);
+                            mDetectedCallEventsMap.put(channel.getValue(), event);
                         }
                         else
                         {
@@ -756,12 +756,12 @@ public class DMRDecoderState extends TimeslotDecoderState
                     }
                     else
                     {
-                        DecodeEvent event = mDetectedCallEventsMap.get(channel.getLogicalSlotNumber());
+                        DecodeEvent event = mDetectedCallEventsMap.get(channel.getValue());
 
                         if(isStale(event, csbk.getTimestamp(), csbk.getIdentifiers()))
                         {
                             event = getDecodeEvent(csbk, DecodeEventType.DATA_CALL, channel, mergedIdentifiers);
-                            mDetectedCallEventsMap.put(channel.getLogicalSlotNumber(), event);
+                            mDetectedCallEventsMap.put(channel.getValue(), event);
                         }
                         else
                         {
@@ -807,12 +807,12 @@ public class DMRDecoderState extends TimeslotDecoderState
                     }
                     else
                     {
-                        DecodeEvent detectedEvent = mDetectedCallEventsMap.get(channel.getLogicalSlotNumber());
+                        DecodeEvent detectedEvent = mDetectedCallEventsMap.get(channel.getValue());
 
                         if(isStale(detectedEvent, csbk.getTimestamp(), csbk.getIdentifiers()))
                         {
                             detectedEvent = getDecodeEvent(csbk, DecodeEventType.CALL_GROUP, channel, mergedIdentifiers);
-                            mDetectedCallEventsMap.put(channel.getLogicalSlotNumber(), detectedEvent);
+                            mDetectedCallEventsMap.put(channel.getValue(), detectedEvent);
                         }
                         else
                         {
@@ -979,10 +979,8 @@ public class DMRDecoderState extends TimeslotDecoderState
                 }
                 break;
             case FULL_CAPACITY_PLUS_GROUP_VOICE_CHANNEL_USER:
-                if(message instanceof CapacityPlusGroupVoiceChannelUser cpgvcu)
+                if(message instanceof MotorolaGroupVoiceChannelUser cpgvcu)
                 {
-                    updateRestChannel(cpgvcu.getRestChannel());
-
                     if(isTerminator)
                     {
                         getIdentifierCollection().remove(Role.FROM);

src/main/java/io/github/dsheirer/module/decode/dmr/DMRMessageProcessor.java

@@ -44,6 +44,8 @@ import io.github.dsheirer.module.decode.dmr.message.data.mbc.MBCContinuationBloc
 import io.github.dsheirer.module.decode.dmr.message.data.packet.PacketSequenceAssembler;
 import io.github.dsheirer.module.decode.dmr.message.data.terminator.Terminator;
 import io.github.dsheirer.module.decode.dmr.message.voice.VoiceEMBMessage;
+import io.github.dsheirer.module.decode.dmr.message.voice.VoiceMessage;
+import io.github.dsheirer.module.decode.dmr.message.voice.VoiceSuperFrameProcessor;
 import io.github.dsheirer.sample.Listener;
 import java.util.ArrayList;
 import java.util.List;
@@ -59,6 +61,8 @@ public class DMRMessageProcessor implements Listener<IMessage>
 {
     private final static Logger mLog = LoggerFactory.getLogger(DMRMessageProcessor.class);
     private DecodeConfigDMR mConfigDMR;
+    private VoiceSuperFrameProcessor mSuperFrameProcessor1 = new VoiceSuperFrameProcessor();
+    private VoiceSuperFrameProcessor mSuperFrameProcessor2 = new VoiceSuperFrameProcessor();
     private FLCAssembler mFLCAssemblerTimeslot1 = new FLCAssembler(1);
     private FLCAssembler mFLCAssemblerTimeslot2 = new FLCAssembler(2);
     private MBCAssembler mMBCAssembler = new MBCAssembler();
@@ -89,11 +93,45 @@ public class DMRMessageProcessor implements Listener<IMessage>
     @Override
     public void receive(IMessage message)
     {
+        if(message instanceof FullLCMessage flc)
+        {
+            if(flc.getTimeslot() == 1)
+            {
+                mSuperFrameProcessor1.process(flc);
+            }
+            else
+            {
+                mSuperFrameProcessor2.process(flc);
+            }
+        }
+        else if(message instanceof VoiceMessage voiceMessage)
+        {
+            if(voiceMessage.getTimeslot() == 1)
+            {
+                mSuperFrameProcessor1.process(voiceMessage);
+            }
+            else
+            {
+                mSuperFrameProcessor2.process(voiceMessage);
+            }
+        }
+        else if(message instanceof DMRBurst dmrBurst && dmrBurst.isValid())
+        {
+            if(dmrBurst.getTimeslot() == 1)
+            {
+                mSuperFrameProcessor1.reset();
+            }
+            else
+            {
+                mSuperFrameProcessor2.reset();
+            }
+        }
+
         //Enrich messages that carry DMR Logical Slot Number channels with LCN to frequency mappings
         if(message instanceof ITimeslotFrequencyReceiver)
         {
             ITimeslotFrequencyReceiver receiver = (ITimeslotFrequencyReceiver)message;
-            int[] lsns = receiver.getLogicalTimeslotNumbers();
+            int[] lsns = receiver.getLogicalSlotNumbers();
 
             List<TimeslotFrequency> timeslotFrequencies = new ArrayList<>();
 

src/main/java/io/github/dsheirer/module/decode/dmr/DMRNetworkConfigurationMonitor.java

@@ -279,7 +279,7 @@ public class DMRNetworkConfigurationMonitor
      */
     private void addDmrChannel(DMRChannel dmrChannel)
     {
-        mObservedChannelMap.put(dmrChannel.getLogicalSlotNumber(), dmrChannel);
+        mObservedChannelMap.put(dmrChannel.getValue(), dmrChannel);
     }
 
     public void reset()

src/main/java/io/github/dsheirer/module/decode/dmr/DMRTrafficChannelManager.java

@@ -322,7 +322,7 @@ public class DMRTrafficChannelManager extends TrafficChannelManager implements I
     public void processChannelGrant(DMRChannel channel, IdentifierCollection identifierCollection,
                                     Opcode opcode, long timestamp, boolean encrypted)
     {
-        int lsn = channel.getLogicalSlotNumber();
+        int lsn = channel.getValue();
 
         DMRChannelGrantEvent event = mLSNGrantEventMap.get(lsn);
         DecodeEventType decodeEventType = getEventType(opcode, identifierCollection, encrypted);

src/main/java/io/github/dsheirer/module/decode/dmr/audio/DMRCallSequenceRecorder.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2021 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -32,17 +32,16 @@ import io.github.dsheirer.module.decode.dmr.message.data.lc.full.GroupVoiceChann
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.UnitToUnitVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.hytera.HyteraGroupVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.hytera.HyteraUnitToUnitVoiceChannelUser;
-import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.CapacityPlusGroupVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.CapacityPlusWideAreaVoiceChannelUser;
+import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.MotorolaGroupVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.terminator.Terminator;
 import io.github.dsheirer.module.decode.dmr.message.voice.VoiceMessage;
 import io.github.dsheirer.preference.UserPreferences;
 import io.github.dsheirer.sample.Listener;
+import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.List;
-
 /**
  * DMR AMBE Frame recorder generates call sequence recordings containing JSON representations of audio
  * frames, optional encryption and call identifiers.
@@ -207,7 +206,7 @@ public class DMRCallSequenceRecorder extends MBECallSequenceRecorder
                 switch(message.getOpcode())
                 {
                     case FULL_CAPACITY_PLUS_GROUP_VOICE_CHANNEL_USER:
-                        if(message instanceof CapacityPlusGroupVoiceChannelUser cpvcu)
+                        if(message instanceof MotorolaGroupVoiceChannelUser cpvcu)
                         {
                             if(mCallSequence == null)
                             {

src/main/java/io/github/dsheirer/module/decode/dmr/channel/DMRAbsoluteChannel.java

@@ -1,23 +1,20 @@
 /*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
- *  * ******************************************************************************
+ * This program is free software: you can redistribute it and/or modify
- *  * Copyright (C) 2014-2019 Dennis Sheirer
+ * it under the terms of the GNU General Public License as published by
- *  *
+ * the Free Software Foundation, either version 3 of the License, or
- *  * This program is free software: you can redistribute it and/or modify
+ * (at your option) any later version.
- *  * it under the terms of the GNU General Public License as published by
- *  * the Free Software Foundation, either version 3 of the License, or
- *  * (at your option) any later version.
- *  *
- *  * This program is distributed in the hope that it will be useful,
- *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  * GNU General Public License for more details.
- *  *
- *  * You should have received a copy of the GNU General Public License
- *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *  * *****************************************************************************
  *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
  */
 
 package io.github.dsheirer.module.decode.dmr.channel;

src/main/java/io/github/dsheirer/module/decode/dmr/channel/DMRChannel.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -56,9 +56,9 @@ public abstract class DMRChannel extends IntegerIdentifier implements IChannelDe
     }
 
     /**
-     * Repeater number for the channel.
+     * Repeater number or channel number for the channel.
      */
-    public int getRepeater()
+    public int getChannel()
     {
         return getValue();
     }
@@ -72,36 +72,6 @@ public abstract class DMRChannel extends IntegerIdentifier implements IChannelDe
         return mTimeslot;
     }
 
-    /**
-     * Logical slot number for this channel.  LSN is a 1-based index value where repeater one, timeslot 1 is
-     * LSN 1, timeslot 2 is LSN 2, etc.
-     *
-     * Formula: LSN = ((channel - 1) * 2) + timeslot
-     *
-     * @return logical slot number, a 1-based index value
-     */
-    public int getLogicalSlotNumber()
-    {
-        int repeater = getRepeater();
-
-        if(repeater > 0)
-        {
-            return ((repeater - 1) * 2) + getTimeslot();
-        }
-
-        return 0;
-    }
-
-    /**
-     * Returns an array of length 1 containing this channel's logical slot number
-     */
-    public int[] getLSNArray()
-    {
-        int[] logicalSlotNumbers = new int[1];
-        logicalSlotNumbers[0] = getLogicalSlotNumber();
-        return logicalSlotNumbers;
-    }
-
     /**
      * Number of timeslots for the DMR channel.
      * @return 2 always.
@@ -121,6 +91,13 @@ public abstract class DMRChannel extends IntegerIdentifier implements IChannelDe
         return true;
     }
 
+
+    @Override
+    public String toString()
+    {
+        return "CHAN:" + getChannel() + ":" + getTimeslot();
+    }
+
     /**
      * Not implemented
      */

src/main/java/io/github/dsheirer/module/decode/dmr/channel/DMRLsn.java

@@ -19,29 +19,60 @@
 
 package io.github.dsheirer.module.decode.dmr.channel;
 
+import java.util.List;
+
 /**
- * DMR logical channel. This channel uses a logical channel number and a timeslot.
+ * DMR Logical Slot Number (LSN) channel.
+ *
+ * Note: LSN 1-16 are represented in memory using the following channel and timeslot values:
+ *
+ * LSN: CHANNEL/TIMESLOT
+ *  1:  1/1
+ *  2:  1/2
+ *  3:  2/1
+ *  4:  2/2
+ *  5:  3/1
+ *  6:  3/2
+ *  7:  4/1
+ *  8:  4/2
+ *  9:  5/1
+ * 10:  5/2
+ * 11:  6/1
+ * 12:  6/2
+ * 13:  7/1
+ * 14:  7/2
+ * 15:  8/1
+ * 16:  8/2
  */
-public class DMRLogicalChannel extends DMRChannel
+public class DMRLsn extends DMRChannel implements ITimeslotFrequencyReceiver
 {
     private TimeslotFrequency mTimeslotFrequency;
 
     /**
-     * Constructs an instance.  Note: radio reference uses a one based index, so we add a value of one to the
+     * Constructs an instance
-     * calculated logical slot value for visual compatibility for users.
      *
-     * @param channel number or repeater number
+     * @param lsn in range 1 - 16
-     * @param logicalSlotNumber - zero based index.
      */
-    public DMRLogicalChannel(int channel, int timeslot)
+    public DMRLsn(int lsn)
     {
-        super(channel, timeslot);
+        super(((lsn - 1) / 2) + 1, ((lsn - 1) % 2) + 1);
+    }
+
+    @Override
+    public String toString()
+    {
+        return "LSN:" + getLsn();
     }
 
     /**
-     * Downlink frequency
+     * Logical Slot Number
-     * @return value in Hertz, or 0 if this channel doesn't have a timeslot frequency mapping
+     * @return lsn
      */
+    public int getLsn()
+    {
+        return ((getChannel() - 1) * 2) + getTimeslot();
+    }
+
     @Override
     public long getDownlinkFrequency()
     {
@@ -53,10 +84,6 @@ public class DMRLogicalChannel extends DMRChannel
         return 0;
     }
 
-    /**
-     * Uplink frequency
-     * @return value in Hertz, or 0 if this channel doesn't have a timeslot frequency mapping
-     */
     @Override
     public long getUplinkFrequency()
     {
@@ -68,23 +95,40 @@ public class DMRLogicalChannel extends DMRChannel
         return 0;
     }
 
+    @Override
+    public int[] getLogicalSlotNumbers()
+    {
+        return new int[]{getLsn()};
+    }
+
     /**
-     * Sets the timeslot frequency mapping
+     * Sets the lsn to frequency mapper value.
-     * @param timeslotFrequency
+     * @param timeslotFrequency to set
      */
     public void setTimeslotFrequency(TimeslotFrequency timeslotFrequency)
     {
         mTimeslotFrequency = timeslotFrequency;
     }
 
-    /**
+    @Override
-     * Formatted channel number
+    public void apply(List<TimeslotFrequency> timeslotFrequencies)
-     */
-    public String toString()
     {
-        StringBuilder sb = new StringBuilder();
+        for(TimeslotFrequency timeslotFrequency: timeslotFrequencies)
-        sb.append("LSN:").append(getLogicalSlotNumber());
+        {
-//        sb.append(" LCN:").append(getValue());
+            if(timeslotFrequency.getNumber() == getLsn())
-        return sb.toString();
+            {
+                setTimeslotFrequency(timeslotFrequency);
+                return;
+            }
+        }
+    }
+
+    public static void main(String[] args)
+    {
+        for(int x = 1; x <= 16; x++)
+        {
+            DMRLsn lsn = new DmrRestLsn(x);
+            System.out.println(lsn);
+        }
     }
 }

src/main/java/io/github/dsheirer/module/decode/dmr/channel/DMRTier3Channel.java

@@ -1,16 +1,37 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
 package io.github.dsheirer.module.decode.dmr.channel;
 
 /**
- * DMR Tier III Trunking Channel
+ * DMR Tier III Trunking channel. This channel uses a logical channel number and a timeslot.
  */
-public class DMRTier3Channel extends DMRLogicalChannel
+public class DMRTier3Channel extends DMRChannel
 {
+    private TimeslotFrequency mTimeslotFrequency;
+
     /**
      * Constructs an instance.  Note: radio reference uses a one based index, so we add a value of one to the
      * calculated logical slot value for visual compatibility for users.
      *
      * @param channel number or repeater number
-     * @param timeslot
+     * @param logicalSlotNumber - zero based index.
      */
     public DMRTier3Channel(int channel, int timeslot)
     {
@@ -18,23 +39,51 @@ public class DMRTier3Channel extends DMRLogicalChannel
     }
 
     /**
-     * Logical slot number for this channel.
+     * Downlink frequency
-     *
+     * @return value in Hertz, or 0 if this channel doesn't have a timeslot frequency mapping
-     * Formula: LSN = (channel * 2) + timeslot
-     *
-     * @return logical slot number, a 1-based index value
      */
     @Override
-    public int getLogicalSlotNumber()
+    public long getDownlinkFrequency()
     {
-        int repeater = getRepeater();
+        if(mTimeslotFrequency != null)
-
-        if(repeater > 0)
         {
-            return ((repeater) * 2) + getTimeslot();
+            return mTimeslotFrequency.getDownlinkFrequency();
         }
 
         return 0;
     }
 
+    /**
+     * Uplink frequency
+     * @return value in Hertz, or 0 if this channel doesn't have a timeslot frequency mapping
+     */
+    @Override
+    public long getUplinkFrequency()
+    {
+        if(mTimeslotFrequency != null)
+        {
+            return mTimeslotFrequency.getUplinkFrequency();
+        }
+
+        return 0;
+    }
+
+    /**
+     * Sets the timeslot frequency mapping
+     * @param timeslotFrequency
+     */
+    public void setTimeslotFrequency(TimeslotFrequency timeslotFrequency)
+    {
+        mTimeslotFrequency = timeslotFrequency;
+    }
+
+    /**
+     * Formatted channel number
+     */
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append(" LCN:").append(getValue());
+        return sb.toString();
+    }
 }

src/main/java/io/github/dsheirer/module/decode/dmr/channel/DmrRestLsn.java

@@ -0,0 +1,42 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.channel;
+
+/**
+ * DMR Rest Channel logical slot number (LSN).
+ */
+public class DmrRestLsn extends DMRLsn
+{
+    /**
+     * Constructs an instance
+     *
+     * @param lsn in range 1 - 16
+     */
+    public DmrRestLsn(int lsn)
+    {
+        super(lsn);
+    }
+
+    @Override
+    public String toString()
+    {
+        return "REST:" + getLsn();
+    }
+}

src/main/java/io/github/dsheirer/module/decode/dmr/channel/ITimeslotFrequencyReceiver.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -26,7 +26,7 @@ public interface ITimeslotFrequencyReceiver
     /**
      * Provides the logical slot number(s) that require a matching timeslot frequency mapping
      */
-    public int[] getLogicalTimeslotNumbers();
+    public int[] getLogicalSlotNumbers();
 
     /**
      * Applies the list of timeslot frequency mappings to the implementer

src/main/java/io/github/dsheirer/module/decode/dmr/channel/TimeslotFrequency.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -31,7 +31,7 @@ import javafx.beans.property.SimpleLongProperty;
 import javafx.util.Callback;
 
 /**
- * Maps a timeslot number to a pair of channel frequency values
+ * Maps a logical slot number (LSN) to a pair of channel frequency values
  */
 public class TimeslotFrequency
 {
@@ -73,7 +73,7 @@ public class TimeslotFrequency
      * Downlink Frequency property
      */
     @JsonIgnore
-    public LongProperty downlinkFrequencyPropertyProperty()
+    public LongProperty downlinkFrequencyProperty()
     {
         return mDownlinkFrequencyProperty;
     }
@@ -168,7 +168,7 @@ public class TimeslotFrequency
      */
     public static Callback<TimeslotFrequency,Observable[]> extractor()
     {
-        return (TimeslotFrequency tf) -> new Observable[] {tf.getNumberProperty(), tf.downlinkFrequencyPropertyProperty(),
+        return (TimeslotFrequency tf) -> new Observable[] {tf.getNumberProperty(), tf.downlinkFrequencyProperty(),
             tf.uplinkFrequencyProperty(), tf.getDownlinkMHz(), tf.getUplinkMHz()};
     }
 }

src/main/java/io/github/dsheirer/module/decode/dmr/message/DMRBurst.java

@@ -1,5 +1,25 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
 package io.github.dsheirer.module.decode.dmr.message;
 
+import io.github.dsheirer.bits.BinaryMessage;
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
 /**
@@ -53,4 +73,13 @@ public abstract class DMRBurst extends DMRMessage
     {
         return mSyncPattern;
     }
+
+    /**
+     * Extracts the sync payload from between the two payload fragments.
+     * @return binary message containing just the sync payload bits (64).
+     */
+    public BinaryMessage getSyncPayload()
+    {
+        return getMessage().get(SYNC_START, PAYLOAD_2_START);
+    }
 }

src/main/java/io/github/dsheirer/module/decode/dmr/message/IServiceOptionsProvider.java

@@ -0,0 +1,34 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message;
+
+import io.github.dsheirer.module.decode.dmr.message.type.ServiceOptions;
+
+/**
+ * DMR message that exposes a service options configuration
+ */
+public interface IServiceOptionsProvider
+{
+    /**
+     * Service Options
+     * @return service options
+     */
+    ServiceOptions getServiceOptions();
+}

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/DMRDataMessageFactory.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -45,7 +45,7 @@ import io.github.dsheirer.module.decode.dmr.message.data.header.UnconfirmedDataH
 import io.github.dsheirer.module.decode.dmr.message.data.header.VoiceHeader;
 import io.github.dsheirer.module.decode.dmr.message.data.header.hytera.HyteraProprietaryDataHeader;
 import io.github.dsheirer.module.decode.dmr.message.data.header.motorola.MNISProprietaryDataHeader;
-import io.github.dsheirer.module.decode.dmr.message.data.header.motorola.MotorolaProprietaryDataHeader;
+import io.github.dsheirer.module.decode.dmr.message.data.header.motorola.MotorolaDataEncryptionHeader;
 import io.github.dsheirer.module.decode.dmr.message.data.mbc.MBCContinuationBlock;
 import io.github.dsheirer.module.decode.dmr.message.data.terminator.Terminator;
 import io.github.dsheirer.module.decode.dmr.message.data.usb.USBData;
@@ -132,7 +132,7 @@ public class DMRDataMessageFactory
                                     }
                                     else
                                     {
-                                        MotorolaProprietaryDataHeader mprdh = new MotorolaProprietaryDataHeader(pattern,
+                                        MotorolaDataEncryptionHeader mprdh = new MotorolaDataEncryptionHeader(pattern,
                                             payload, cach, slotType, timestamp, timeslot);
                                         mprdh.setValid(valid);
                                         return mprdh;

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/motorola/CapacityPlusNeighbors.java

@@ -22,7 +22,7 @@ package io.github.dsheirer.module.decode.dmr.message.data.csbk.motorola;
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
+import io.github.dsheirer.module.decode.dmr.channel.DmrRestLsn;
 import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
 import io.github.dsheirer.module.decode.dmr.identifier.DMRSite;
@@ -39,7 +39,6 @@ import java.util.List;
 public class CapacityPlusNeighbors extends CSBKMessage implements ITimeslotFrequencyReceiver
 {
     private static final int[] LC_START_STOP = new int[]{16, 17};
-    private static final int TIMESLOT = 18;
     private static final int[] REST_LSN = new int[]{19, 20, 21, 22, 23};
     private static final int ASYNC = 24;
     private static final int[] SITE = new int[]{25, 26, 27, 28};
@@ -58,7 +57,7 @@ public class CapacityPlusNeighbors extends CSBKMessage implements ITimeslotFrequ
     private static final int[] NEIGHBOR_6_REST = new int[]{76, 77, 78, 79};
 
 
-    private DMRLogicalChannel mRestChannel;
+    private DmrRestLsn mRestChannel;
     private DMRSite mSite;
     private List<Identifier> mIdentifiers;
 
@@ -286,37 +285,23 @@ public class CapacityPlusNeighbors extends CSBKMessage implements ITimeslotFrequ
         return getMessage().getInt(REST_LSN);
     }
 
-    /**
-     * Rest repeater
-     */
-    public int getRestRepeater() { return (int) Math.ceil(getRestLSN() / 2.0); }
-
-    /**
-     * Rest timeslot
-     * @return timeslot 1 or 2
-     */
-    public int getRestTimeslot()
-    {
-        return (getRestLSN() % 2 == 0) ? 2 : 1;
-    }
-
     /**
      * DMR Channel
      */
-    public DMRLogicalChannel getRestChannel()
+    public DmrRestLsn getRestChannel()
     {
         if(mRestChannel == null)
         {
-            mRestChannel = new DMRLogicalChannel(getRestRepeater(), getRestTimeslot());
+            mRestChannel = new DmrRestLsn(getRestLSN());
         }
 
         return mRestChannel;
     }
 
     @Override
-    public int[] getLogicalTimeslotNumbers()
+    public int[] getLogicalSlotNumbers()
     {
-        return getRestChannel().getLSNArray();
+        return getRestChannel().getLogicalSlotNumbers();
     }
 
     /**
@@ -329,7 +314,7 @@ public class CapacityPlusNeighbors extends CSBKMessage implements ITimeslotFrequ
     {
         for(TimeslotFrequency timeslotFrequency : timeslotFrequencies)
         {
-            if(timeslotFrequency.getNumber() == getRestChannel().getLogicalSlotNumber())
+            if(timeslotFrequency.getNumber() == getRestChannel().getValue())
             {
                 getRestChannel().setTimeslotFrequency(timeslotFrequency);
             }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/motorola/CapacityPlusSiteStatus.java

@@ -22,7 +22,7 @@ package io.github.dsheirer.module.decode.dmr.message.data.csbk.motorola;
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
+import io.github.dsheirer.module.decode.dmr.channel.DmrRestLsn;
 import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
 import io.github.dsheirer.module.decode.dmr.message.CACH;
@@ -39,13 +39,11 @@ public class CapacityPlusSiteStatus extends CSBKMessage implements ITimeslotFreq
     private static final int[] BYTE = new int[]{0, 1, 2, 3, 4, 5, 6, 7};
     private static final int[] TWO_BYTES = new int[]{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
     private static final int[] SEGMENT_INDICATOR = new int[]{16, 17};
-    private static final int TIMESLOT = 18;
+    private static final int[] REST_LSN = new int[]{19, 20, 21, 22, 23};
-    private static final int RESERVED = 19;
-    private static final int[] REST_LSN = new int[]{20, 21, 22, 23};
     private static final int[] LSN_VOICE_BITMAP = new int[]{24, 25, 26, 27, 28, 29, 30, 31};
     private static final int LSN_1_8_BITMAP_START = 24;
 
-    private DMRLogicalChannel mRestChannel;
+    private DmrRestLsn mRestChannel;
     private List<Identifier> mIdentifiers;
 
     /**
@@ -80,7 +78,7 @@ public class CapacityPlusSiteStatus extends CSBKMessage implements ITimeslotFreq
             sb.append(" RAS:").append(getBPTCReservedBits());
         }
 
-        sb.append(" CSBK CAP+ SITE STATUS REST ").append(getRestChannel());
+        sb.append(" CSBK CAP+ SITE STATUS ").append(getRestChannel());
         sb.append(" ").append(getSegmentIndicator());
         sb.append(" ");
 
@@ -277,11 +275,11 @@ public class CapacityPlusSiteStatus extends CSBKMessage implements ITimeslotFreq
     /**
      * Current rest channel for this site.
      */
-    public DMRLogicalChannel getRestChannel()
+    public DmrRestLsn getRestChannel()
     {
         if(mRestChannel == null)
         {
-            mRestChannel = new DMRLogicalChannel(getRestRepeater(), getRestTimeslot());
+            mRestChannel = new DmrRestLsn(getRestLSN());
         }
 
         return mRestChannel;
@@ -297,31 +295,13 @@ public class CapacityPlusSiteStatus extends CSBKMessage implements ITimeslotFreq
         return getMessage().getInt(REST_LSN);
     }
 
-    /**
-     * Rest Channel Repeater
-     */
-    public int getRestRepeater()
-    {
-        return (int) Math.ceil(getRestLSN() / 2.0);
-    }
-
-    /**
-     * Rest Channel Timeslot
-     *
-     * @return 1 or 2
-     */
-    public int getRestTimeslot()
-    {
-        return (getRestLSN() % 2 == 0) ? 2 : 1;
-    }
-
     /**
      * Logical slot numbers that require slot to frequency mappings.
      */
     @Override
-    public int[] getLogicalTimeslotNumbers()
+    public int[] getLogicalSlotNumbers()
     {
-        return getRestChannel().getLSNArray();
+        return getRestChannel().getLogicalSlotNumbers();
     }
 
     /**
@@ -334,7 +314,7 @@ public class CapacityPlusSiteStatus extends CSBKMessage implements ITimeslotFreq
     {
         for(TimeslotFrequency timeslotFrequency : timeslotFrequencies)
         {
-            if(getRestChannel().getLogicalSlotNumber() == timeslotFrequency.getNumber())
+            if(getRestChannel().getValue() == timeslotFrequency.getNumber())
             {
                 getRestChannel().setTimeslotFrequency(timeslotFrequency);
             }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/motorola/ConnectPlusDataChannelGrant.java

@@ -23,7 +23,7 @@ import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.identifier.radio.RadioIdentifier;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
+import io.github.dsheirer.module.decode.dmr.channel.DMRLsn;
 import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
 import io.github.dsheirer.module.decode.dmr.identifier.DMRRadio;
@@ -40,14 +40,13 @@ public class ConnectPlusDataChannelGrant extends CSBKMessage implements ITimeslo
 {
     private static final int[] TARGET_ADDRESS = new int[]{16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
         32, 33, 34, 35, 36, 37, 38, 39};
-    private static final int[] REPEATER = new int[]{40, 41, 42, 43};
+    private static final int[] REPEATER = new int[]{40, 41, 42, 43, 44};
-    private static final int[] CHANNEL_GRANT_TIMESLOT = new int[]{44};
 
     //Analysis: this field correlates to UNKNOWN_FIELD_1(bits: 40-48) in ConnectPlusTerminateChannelGrant.
     private static final int[] UNKNOWN_FIELD = new int[]{48, 49, 50, 51, 52, 53, 54, 55};
 
     private RadioIdentifier mTargetRadio;
-    private DMRLogicalChannel mDMRLogicalChannel;
+    private DMRLsn mDmrLsn;
     private List<Identifier> mIdentifiers;
 
     /**
@@ -117,32 +116,23 @@ public class ConnectPlusDataChannelGrant extends CSBKMessage implements ITimeslo
         return getMessage().getInt(REPEATER);
     }
 
-    /**
-     * Channel grant timeslot
-     * @return 1 or 2
-     */
-    public int getChannelGrantTimeslot()
-    {
-        return getMessage().getInt(CHANNEL_GRANT_TIMESLOT) + 1;
-    }
-
     /**
      * DMR Channel
      */
-    public DMRLogicalChannel getChannel()
+    public DMRLsn getChannel()
     {
-        if(mDMRLogicalChannel == null)
+        if(mDmrLsn == null)
         {
-            mDMRLogicalChannel = new DMRLogicalChannel(getRepeater(), getChannelGrantTimeslot());
+            mDmrLsn = new DMRLsn(getRepeater());
         }
 
-        return mDMRLogicalChannel;
+        return mDmrLsn;
     }
 
     @Override
-    public int[] getLogicalTimeslotNumbers()
+    public int[] getLogicalSlotNumbers()
     {
-        return getChannel().getLSNArray();
+        return getChannel().getLogicalSlotNumbers();
     }
 
     /**
@@ -154,7 +144,7 @@ public class ConnectPlusDataChannelGrant extends CSBKMessage implements ITimeslo
     {
         for(TimeslotFrequency timeslotFrequency: timeslotFrequencies)
         {
-            if(timeslotFrequency.getNumber() == getChannel().getLogicalSlotNumber())
+            if(timeslotFrequency.getNumber() == getChannel().getValue())
             {
                 getChannel().setTimeslotFrequency(timeslotFrequency);
             }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/motorola/ConnectPlusOTAAnnouncement.java

@@ -22,7 +22,7 @@ package io.github.dsheirer.module.decode.dmr.message.data.csbk.motorola;
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
+import io.github.dsheirer.module.decode.dmr.channel.DMRLsn;
 import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
 import io.github.dsheirer.module.decode.dmr.message.CACH;
@@ -44,11 +44,10 @@ public class ConnectPlusOTAAnnouncement extends CSBKMessage implements ITimeslot
     private static final int[] MESSAGE_TYPE = new int[]{16, 17, 18, 19, 20, 21, 22, 23};
     private static final int[] VERSION = new int[]{24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39};
     private static final int[] UNKNOWN = new int[]{40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56,
-        57, 58, 59, 60, 61, 62, 63};
+        57, 58, 59, 60, 61, 62};
-    private static final int[] DATA_REPEATER = new int[]{64, 65, 66, 67};
+    private static final int[] DATA_REPEATER = new int[]{63, 64, 65, 66, 67};
-    private static final int[] DATA_TIMESLOT = new int[]{68};
 
-    private DMRLogicalChannel mDataChannel;
+    private DMRLsn mDataChannel;
     private List<Identifier> mIdentifiers;
 
     /**
@@ -107,32 +106,23 @@ public class ConnectPlusOTAAnnouncement extends CSBKMessage implements ITimeslot
         return getMessage().getInt(DATA_REPEATER);
     }
 
-    /**
-     * Data Timeslot
-     * @return 1 or 2
-     */
-    public int getDataTimeslot()
-    {
-        return getMessage().getInt(DATA_TIMESLOT) + 1;
-    }
-
     /**
      * DMR Channel where the data is available
      */
-    public DMRLogicalChannel getDataChannel()
+    public DMRLsn getDataChannel()
     {
         if(mDataChannel == null)
         {
-            mDataChannel = new DMRLogicalChannel(getDataRepeater(), getDataTimeslot());
+            mDataChannel = new DMRLsn(getDataRepeater());
         }
 
         return mDataChannel;
     }
 
     @Override
-    public int[] getLogicalTimeslotNumbers()
+    public int[] getLogicalSlotNumbers()
     {
-        return getDataChannel().getLSNArray();
+        return getDataChannel().getLogicalSlotNumbers();
     }
 
     /**
@@ -145,7 +135,7 @@ public class ConnectPlusOTAAnnouncement extends CSBKMessage implements ITimeslot
     {
         for(TimeslotFrequency timeslotFrequency : timeslotFrequencies)
         {
-            if(timeslotFrequency.getNumber() == getDataChannel().getLogicalSlotNumber())
+            if(timeslotFrequency.getNumber() == getDataChannel().getValue())
             {
                 getDataChannel().setTimeslotFrequency(timeslotFrequency);
             }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/motorola/ConnectPlusVoiceChannelUser.java

@@ -24,7 +24,7 @@ import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.identifier.radio.RadioIdentifier;
 import io.github.dsheirer.identifier.talkgroup.TalkgroupIdentifier;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
+import io.github.dsheirer.module.decode.dmr.channel.DMRLsn;
 import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
 import io.github.dsheirer.module.decode.dmr.identifier.DMRRadio;
@@ -44,13 +44,12 @@ public class ConnectPlusVoiceChannelUser extends CSBKMessage implements ITimeslo
         32, 33, 34, 35, 36, 37, 38, 39};
     private static final int[] GROUP_ADDRESS = new int[]{40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55,
         56, 57, 58, 59, 60, 61, 62, 63};
-    private static final int[] TRAFFIC_CHANNEL_REPEATER = new int[]{64, 65, 66, 67};
+    private static final int[] TRAFFIC_CHANNEL_REPEATER = new int[]{64, 65, 66, 67, 68};
-    private static final int[] TRAFFIC_CHANNEL_TIMESLOT = new int[]{68};
     private static final int[] UNKNOWN_FIELD = new int[]{72, 73, 74, 75, 76, 77, 78, 79};
 
     private RadioIdentifier mRadio;
     private TalkgroupIdentifier mTalkgroup;
-    private DMRLogicalChannel mDMRLogicalChannel;
+    private DMRLsn mDmrLsn;
     private List<Identifier> mIdentifiers;
 
     /**
@@ -132,32 +131,23 @@ public class ConnectPlusVoiceChannelUser extends CSBKMessage implements ITimeslo
         return getMessage().getInt(TRAFFIC_CHANNEL_REPEATER);
     }
 
-    /**
-     * Traffic channel timeslot
-     * @return 1 or 2
-     */
-    public int getTrafficChannelTimeslot()
-    {
-        return getMessage().getInt(TRAFFIC_CHANNEL_TIMESLOT) + 1;
-    }
-
     /**
      * DMR Channel
      */
-    public DMRLogicalChannel getChannel()
+    public DMRLsn getChannel()
     {
-        if(mDMRLogicalChannel == null)
+        if(mDmrLsn == null)
         {
-            mDMRLogicalChannel = new DMRLogicalChannel(getTrafficChannelRepeater(), getTrafficChannelTimeslot());
+            mDmrLsn = new DMRLsn(getTrafficChannelRepeater());
         }
 
-        return mDMRLogicalChannel;
+        return mDmrLsn;
     }
 
     @Override
-    public int[] getLogicalTimeslotNumbers()
+    public int[] getLogicalSlotNumbers()
     {
-        return getChannel().getLSNArray();
+        return getChannel().getLogicalSlotNumbers();
     }
 
     /**
@@ -169,7 +159,7 @@ public class ConnectPlusVoiceChannelUser extends CSBKMessage implements ITimeslo
     {
         for(TimeslotFrequency timeslotFrequency: timeslotFrequencies)
         {
-            if(timeslotFrequency.getNumber() == getChannel().getLogicalSlotNumber())
+            if(timeslotFrequency.getNumber() == getChannel().getValue())
             {
                 getChannel().setTimeslotFrequency(timeslotFrequency);
             }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/standard/Clear.java

@@ -25,7 +25,7 @@ import io.github.dsheirer.identifier.integer.IntegerIdentifier;
 import io.github.dsheirer.identifier.radio.RadioIdentifier;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
 import io.github.dsheirer.module.decode.dmr.channel.DMRChannel;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
+import io.github.dsheirer.module.decode.dmr.channel.DMRLsn;
 import io.github.dsheirer.module.decode.dmr.channel.DMRTier3Channel;
 import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
@@ -224,11 +224,11 @@ public class Clear extends CSBKMessage implements ITimeslotFrequencyReceiver
      * Logical Slot Number(s) for channels contained in this message
      */
     @Override
-    public int[] getLogicalTimeslotNumbers()
+    public int[] getLogicalSlotNumbers()
     {
-        if(getMoveToChannel() instanceof DMRLogicalChannel)
+        if(getMoveToChannel() instanceof DMRLsn dmrLsn)
         {
-            return ((DMRLogicalChannel)getMoveToChannel()).getLSNArray();
+            return dmrLsn.getLogicalSlotNumbers();
         }
 
         return new int[0];
@@ -241,13 +241,13 @@ public class Clear extends CSBKMessage implements ITimeslotFrequencyReceiver
     @Override
     public void apply(List<TimeslotFrequency> timeslotFrequencies)
     {
-        if(getMoveToChannel() instanceof DMRLogicalChannel)
+        if(getMoveToChannel() instanceof DMRTier3Channel)
         {
-            DMRLogicalChannel channel = (DMRLogicalChannel)getMoveToChannel();
+            DMRTier3Channel channel = (DMRTier3Channel)getMoveToChannel();
 
             for(TimeslotFrequency timeslotFrequency: timeslotFrequencies)
             {
-                if(channel.getLogicalSlotNumber() == timeslotFrequency.getNumber())
+                if(channel.getValue() == timeslotFrequency.getNumber())
                 {
                     channel.setTimeslotFrequency(timeslotFrequency);
                 }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/standard/announcement/AdjacentSiteInformation.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -23,24 +23,20 @@ import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
 import io.github.dsheirer.module.decode.dmr.channel.DMRChannel;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
 import io.github.dsheirer.module.decode.dmr.channel.DMRTier3Channel;
-import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
-import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
 import io.github.dsheirer.module.decode.dmr.message.CACH;
 import io.github.dsheirer.module.decode.dmr.message.data.SlotType;
 import io.github.dsheirer.module.decode.dmr.message.data.mbc.MBCContinuationBlock;
 import io.github.dsheirer.module.decode.dmr.message.type.AbsoluteChannelParameters;
 import io.github.dsheirer.module.decode.dmr.message.type.DataType;
 import io.github.dsheirer.module.decode.dmr.message.type.SystemIdentityCode;
-
 import java.util.ArrayList;
 import java.util.List;
 
 /**
  * DMR Tier III - Announcement Message - Adjacent/Neighbor Site Information
  */
-public class AdjacentSiteInformation extends Announcement implements ITimeslotFrequencyReceiver
+public class AdjacentSiteInformation extends Announcement
 {
     private static final int NEIGHBOR_SYSTEM_IDENTITY_CODE_OFFSET = 21;
     private static final int NETWORK_CONNECTION_STATUS_AVAILABLE_FLAG = 56;
@@ -235,39 +231,4 @@ public class AdjacentSiteInformation extends Announcement implements ITimeslotFr
 
         return mIdentifiers;
     }
-
-    /**
-     * Logical Slot Number(s) for channels contained in this message
-     */
-    @Override
-    public int[] getLogicalTimeslotNumbers()
-    {
-        if(getNeighborChannel() instanceof DMRLogicalChannel)
-        {
-            return ((DMRLogicalChannel)getNeighborChannel()).getLSNArray();
-        }
-
-        return new int[0];
-    }
-
-    /**
-     * Applies the timeslot frequency lookup information to channels contained in this message
-     * @param timeslotFrequencies that match the logical timeslots
-     */
-    @Override
-    public void apply(List<TimeslotFrequency> timeslotFrequencies)
-    {
-        if(getNeighborChannel() instanceof DMRLogicalChannel)
-        {
-            DMRLogicalChannel channel = (DMRLogicalChannel)getNeighborChannel();
-
-            for(TimeslotFrequency timeslotFrequency: timeslotFrequencies)
-            {
-                if(channel.getLogicalSlotNumber() == timeslotFrequency.getNumber())
-                {
-                    channel.setTimeslotFrequency(timeslotFrequency);
-                }
-            }
-        }
-    }
 }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/standard/announcement/AnnounceWithdrawTSCC.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -29,7 +29,6 @@ import io.github.dsheirer.module.decode.dmr.message.data.SlotType;
 import io.github.dsheirer.module.decode.dmr.message.data.mbc.MBCContinuationBlock;
 import io.github.dsheirer.module.decode.dmr.message.type.AbsoluteChannelParameters;
 import io.github.dsheirer.module.decode.dmr.message.type.DataType;
-
 import java.util.ArrayList;
 import java.util.List;
 

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/standard/announcement/VoteNowAdvice.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -23,7 +23,7 @@ import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
 import io.github.dsheirer.module.decode.dmr.channel.DMRChannel;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
+import io.github.dsheirer.module.decode.dmr.channel.DMRLsn;
 import io.github.dsheirer.module.decode.dmr.channel.DMRTier3Channel;
 import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
@@ -33,7 +33,6 @@ import io.github.dsheirer.module.decode.dmr.message.data.mbc.MBCContinuationBloc
 import io.github.dsheirer.module.decode.dmr.message.type.AbsoluteChannelParameters;
 import io.github.dsheirer.module.decode.dmr.message.type.DataType;
 import io.github.dsheirer.module.decode.dmr.message.type.SystemIdentityCode;
-
 import java.util.ArrayList;
 import java.util.List;
 
@@ -240,11 +239,11 @@ public class VoteNowAdvice extends Announcement implements ITimeslotFrequencyRec
      * Logical Slot Number(s) for channels contained in this message
      */
     @Override
-    public int[] getLogicalTimeslotNumbers()
+    public int[] getLogicalSlotNumbers()
     {
-        if(getChannel() instanceof DMRLogicalChannel)
+        if(getChannel() instanceof DMRLsn dmrLsn)
         {
-            return ((DMRLogicalChannel)getChannel()).getLSNArray();
+            return dmrLsn.getLogicalSlotNumbers();
         }
 
         return new int[0];
@@ -257,13 +256,13 @@ public class VoteNowAdvice extends Announcement implements ITimeslotFrequencyRec
     @Override
     public void apply(List<TimeslotFrequency> timeslotFrequencies)
     {
-        if(getChannel() instanceof DMRLogicalChannel)
+        if(getChannel() instanceof DMRTier3Channel)
         {
-            DMRLogicalChannel channel = (DMRLogicalChannel)getChannel();
+            DMRTier3Channel channel = (DMRTier3Channel)getChannel();
 
             for(TimeslotFrequency timeslotFrequency: timeslotFrequencies)
             {
-                if(channel.getLogicalSlotNumber() == timeslotFrequency.getNumber())
+                if(channel.getValue() == timeslotFrequency.getNumber())
                 {
                     channel.setTimeslotFrequency(timeslotFrequency);
                 }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/standard/grant/ChannelGrant.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,7 +22,7 @@ package io.github.dsheirer.module.decode.dmr.message.data.csbk.standard.grant;
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
 import io.github.dsheirer.module.decode.dmr.channel.DMRChannel;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
+import io.github.dsheirer.module.decode.dmr.channel.DMRLsn;
 import io.github.dsheirer.module.decode.dmr.channel.DMRTier3Channel;
 import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
@@ -32,7 +32,6 @@ import io.github.dsheirer.module.decode.dmr.message.data.csbk.CSBKMessage;
 import io.github.dsheirer.module.decode.dmr.message.data.mbc.MBCContinuationBlock;
 import io.github.dsheirer.module.decode.dmr.message.type.AbsoluteChannelParameters;
 import io.github.dsheirer.module.decode.dmr.message.type.DataType;
-
 import java.util.List;
 
 /**
@@ -159,11 +158,11 @@ public abstract class ChannelGrant extends CSBKMessage implements ITimeslotFrequ
      * Logical Slot Number(s) for channels contained in this message
      */
     @Override
-    public int[] getLogicalTimeslotNumbers()
+    public int[] getLogicalSlotNumbers()
     {
-        if(getChannel() instanceof DMRLogicalChannel)
+        if(getChannel() instanceof DMRLsn dmrLsn)
         {
-            return ((DMRLogicalChannel)getChannel()).getLSNArray();
+            return dmrLsn.getLogicalSlotNumbers();
         }
 
         return new int[0];
@@ -176,13 +175,13 @@ public abstract class ChannelGrant extends CSBKMessage implements ITimeslotFrequ
     @Override
     public void apply(List<TimeslotFrequency> timeslotFrequencies)
     {
-        if(getChannel() instanceof DMRLogicalChannel)
+        if(getChannel() instanceof DMRTier3Channel)
         {
-            DMRLogicalChannel channel = (DMRLogicalChannel)getChannel();
+            DMRTier3Channel channel = (DMRTier3Channel)getChannel();
 
             for(TimeslotFrequency timeslotFrequency: timeslotFrequencies)
             {
-                if(channel.getLogicalSlotNumber() == timeslotFrequency.getNumber())
+                if(channel.getValue() == timeslotFrequency.getNumber())
                 {
                     channel.setTimeslotFrequency(timeslotFrequency);
                 }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/header/DefinedShortDataHeader.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -25,7 +25,6 @@ import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
 import io.github.dsheirer.module.decode.dmr.message.CACH;
 import io.github.dsheirer.module.decode.dmr.message.data.SlotType;
 import io.github.dsheirer.module.decode.dmr.message.type.DefinedDataFormat;
-
 import java.util.ArrayList;
 import java.util.List;
 
@@ -39,6 +38,7 @@ public class DefinedShortDataHeader extends PacketSequenceHeader
     private static final int RESYNCHRONIZE_FLAG = 70;
     private static final int FULL_MESSAGE_FLAG = 71;
     private static final int[] BIT_PADDING = new int[]{72, 73, 74, 75, 76, 77, 78, 79};
+    private static final int[] HEADER_CRC = new int[]{80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95};
 
     private List<Identifier> mIdentifiers;
 

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/header/ProprietaryDataHeader.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -34,6 +34,11 @@ public class ProprietaryDataHeader extends DataHeader
 {
     private static final int[] SERVICE_ACCESS_POINT = new int[]{0, 1, 2, 3};
     private static final int[] VENDOR = new int[]{8, 9, 10, 11, 12, 13, 14, 15};
+    private static final int[] VENDOR_DATA = new int[]{16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+            32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
+            48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
+            64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79};
+    private static final int[] HEADER_CRC = new int[]{80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95};
 
     /**
      * Constructs an instance.
@@ -62,10 +67,20 @@ public class ProprietaryDataHeader extends DataHeader
         sb.append(" PROPRIETARY DATA HEADER");
         sb.append(" VENDOR:").append(getVendor());
         sb.append(" ").append(getServiceAccessPoint());
+        sb.append(" VENDOR DATA:").append(getVendorData());
         sb.append(" MSG:").append(getMessage().toHexString());
         return sb.toString();
     }
 
+    /**
+     * Vendor defined data payload from this proprietary header.
+     * @return hex values.
+     */
+    public String getVendorData()
+    {
+        return getMessage().getHex(VENDOR_DATA, 16);
+    }
+
     /**
      * Optional packet prefix.
      * @return packet prefix fragment or null.

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/header/motorola/MNISProprietaryDataHeader.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -66,7 +66,8 @@ public class MNISProprietaryDataHeader extends ProprietaryDataHeader
     public String toString()
     {
         StringBuilder sb = new StringBuilder();
-        sb.append("MOTOROLA MNIS HEADER");
+        sb.append("CC:").append(getSlotType().getColorCode());
+        sb.append(" MOTOROLA MNIS HEADER");
         if(getApplicationType() == ApplicationType.UNKNOWN)
         {
             sb.append(" APPLICATION TYPE:0x").append(Integer.toHexString(getApplicationTypeNumber()).toUpperCase());

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/header/motorola/MotorolaDataEncryptionHeader.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -31,10 +31,15 @@ import io.github.dsheirer.module.decode.dmr.message.type.Vendor;
 /**
  * Motorola Proprietary Data Header
  */
-public class MotorolaProprietaryDataHeader extends ProprietaryDataHeader
+public class MotorolaDataEncryptionHeader extends ProprietaryDataHeader
 {
     private static final int[] SERVICE_ACCESS_POINT = new int[]{0, 1, 2, 3};
     private static final int[] VENDOR = new int[]{8, 9, 10, 11, 12, 13, 14, 15};
+    private static final int[] ALGORITHM = new int[]{16, 17, 18, 19, 20, 21, 22, 23};
+    private static final int[] KEY_ID = new int[]{24, 25, 26, 27, 28, 29, 30, 31};
+    private static final int[] UNKNOWN = new int[]{32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
+    private static final int[] INITIALIZATION_VECTOR = new int[]{48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
+            62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79};
 
     /**
      * Constructs an instance.
@@ -46,7 +51,7 @@ public class MotorolaProprietaryDataHeader extends ProprietaryDataHeader
      * @param timestamp message was received
      * @param timeslot for the DMR burst
      */
-    public MotorolaProprietaryDataHeader(DMRSyncPattern syncPattern, CorrectedBinaryMessage message, CACH cach, SlotType slotType, long timestamp, int timeslot)
+    public MotorolaDataEncryptionHeader(DMRSyncPattern syncPattern, CorrectedBinaryMessage message, CACH cach, SlotType slotType, long timestamp, int timeslot)
     {
         super(syncPattern, message, cach, slotType, timestamp, timeslot);
     }
@@ -55,14 +60,57 @@ public class MotorolaProprietaryDataHeader extends ProprietaryDataHeader
     public String toString()
     {
         StringBuilder sb = new StringBuilder();
-        sb.append("MOTOROLA PROPRIETARY DATA HEADER");
+        sb.append("CC:").append(getSlotType().getColorCode());
-        sb.append(" ").append(getServiceAccessPoint());
+        sb.append(" MOTOROLA DATA ENCRYPTION HEADER");
+        sb.append(" SAP:").append(getServiceAccessPoint());
+        sb.append(" ALGORITHM?:").append(getAlgorithm());
+        sb.append(" KEY?:").append(getKeyId());
+        sb.append(" IV?:").append(getInitializationVector());
+        sb.append(" UNK:").append(getUnknown());
         sb.append(" MSG:").append(getMessage().toHexString());
         return sb.toString();
     }
 
+    /**
+     * Unknown message field(s).
+     * @return hex value.
+     */
+    public String getUnknown()
+    {
+        return getMessage().getHex(UNKNOWN, 4);
+    }
+
+    /**
+     * Encryption key ID
+     * @return key ID
+     */
+    public int getKeyId()
+    {
+        return getMessage().getInt(KEY_ID);
+    }
+
+    /**
+     * Encryption Algorithm
+     * @return algorithm ID
+     */
+    public int getAlgorithm()
+    {
+        return getMessage().getInt(ALGORITHM);
+    }
+
+    /**
+     * Encryption initialization vector
+     *
+     * @return vector in hex
+     */
+    public String getInitializationVector()
+    {
+        return getMessage().getHex(INITIALIZATION_VECTOR, 8);
+    }
+
     /**
      * Utility method to lookup the vendor from a CSBK message
+     *
      * @param message containing CSBK bits
      * @return vendor
      */

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/LCMessageFactory.java

@@ -37,8 +37,9 @@ import io.github.dsheirer.module.decode.dmr.message.data.lc.full.hytera.HyteraGr
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.hytera.HyteraTerminator;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.hytera.HyteraUnitToUnitVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.CapacityPlusEncryptedVoiceChannelUser;
-import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.CapacityPlusGroupVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.CapacityPlusWideAreaVoiceChannelUser;
+import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.MotorolaEncryptionParameters;
+import io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola.MotorolaGroupVoiceChannelUser;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.ActivityUpdateMessage;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.CapacityPlusRestChannel;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.ConnectPlusControlChannel;
@@ -113,7 +114,7 @@ public class LCMessageFactory
                 flc = new TerminatorData(message, timestamp, timeslot);
                 break;
             case FULL_CAPACITY_PLUS_GROUP_VOICE_CHANNEL_USER:
-                flc = new CapacityPlusGroupVoiceChannelUser(message, timestamp, timeslot);
+                flc = new MotorolaGroupVoiceChannelUser(message, timestamp, timeslot);
                 break;
             case FULL_CAPACITY_PLUS_ENCRYPTED_VOICE_CHANNEL_USER:
                 flc = new CapacityPlusEncryptedVoiceChannelUser(message, timestamp, timeslot);
@@ -121,7 +122,9 @@ public class LCMessageFactory
             case FULL_CAPACITY_PLUS_WIDE_AREA_VOICE_CHANNEL_USER:
                 flc = new CapacityPlusWideAreaVoiceChannelUser(message, timestamp, timeslot);
                 break;
-
+            case FULL_CAPACITY_PLUS_ENCRYPTION_PARAMETERS:
+                flc = new MotorolaEncryptionParameters(message, timestamp, timeslot);
+                break;
             case FULL_HYTERA_GROUP_VOICE_CHANNEL_USER:
                 flc = new HyteraGroupVoiceChannelUser(message, timestamp, timeslot);
                 break;

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/LCOpcode.java

@@ -48,6 +48,8 @@ public enum LCOpcode
     FULL_CAPACITY_PLUS_WIDE_AREA_VOICE_CHANNEL_USER(Vendor.MOTOROLA_CAPACITY_PLUS, true, 4, "WAN GROUP VOICE CHANNEL USER"),
     //Observed on Cap+ Multi-Site System during an encrypted voice call
     FULL_CAPACITY_PLUS_ENCRYPTED_VOICE_CHANNEL_USER(Vendor.MOTOROLA_CAPACITY_PLUS, true, 32, "ENCRYPTED VOICE CHANNEL USER"),
+    //Observed on Cap+ Multi-Site System during an encrypted voice call
+    FULL_CAPACITY_PLUS_ENCRYPTION_PARAMETERS(Vendor.MOTOROLA_CAPACITY_PLUS, true, 33, "ENCRYPTION PARAMETERS"),
     //Cap+ opcodes from https://forums.radioreference.com/threads/understanding-capacity-plus-trunking-some-more.452566/
     //FLCO 0: Group Call Maintenance
     //FLCO 3: Private Call Maintenance (TermLC)

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/full/AbstractVoiceChannelUser.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,6 +20,7 @@
 package io.github.dsheirer.module.decode.dmr.message.data.lc.full;
 
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
+import io.github.dsheirer.module.decode.dmr.message.IServiceOptionsProvider;
 import io.github.dsheirer.module.decode.dmr.message.type.ServiceOptions;
 
 /**
@@ -27,7 +28,7 @@ import io.github.dsheirer.module.decode.dmr.message.type.ServiceOptions;
  *
  * ETSI TS 102 361-2 7.1.1.2
  */
-public abstract class AbstractVoiceChannelUser extends FullLCMessage
+public abstract class AbstractVoiceChannelUser extends FullLCMessage implements IServiceOptionsProvider
 {
     private static final int[] SERVICE_OPTIONS = new int[]{16, 17, 18, 19, 20, 21, 22, 23};
 

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/full/hytera/HyteraFullLC.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,13 +22,14 @@ package io.github.dsheirer.module.decode.dmr.message.data.lc.full.hytera;
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.radio.RadioIdentifier;
 import io.github.dsheirer.module.decode.dmr.identifier.DMRRadio;
+import io.github.dsheirer.module.decode.dmr.message.IServiceOptionsProvider;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.FullLCMessage;
 import io.github.dsheirer.module.decode.dmr.message.type.ServiceOptions;
 
 /**
  * Hytera Full Link Control
  */
-public abstract class HyteraFullLC extends FullLCMessage
+public abstract class HyteraFullLC extends FullLCMessage implements IServiceOptionsProvider
 {
     private static final int[] SERVICE_OPTIONS = new int[]{16, 17, 18, 19, 20, 21, 22, 23};
     private static final int[] FREE_REPEATER = new int[]{24, 25, 26, 27};

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/full/motorola/CapacityPlusEncryptedVoiceChannelUser.java

@@ -37,7 +37,7 @@ public class CapacityPlusEncryptedVoiceChannelUser extends CapacityPlusVoiceChan
     private static final int[] TARGET_ADDRESS = new int[]{32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
     private static final int[] UNKNOWN_2 = new int[]{48, 49, 50, 51, 52, 53, 54, 55};
     private static final int[] SOURCE_ADDRESS = new int[]{56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71};
-    private static final int[] UNKNOWN_3 = new int[]{72, 73, 74, 75, 76, 77, 78, 79};
+    //Reed Solomon FEC: 72-95
 
     private RadioIdentifier mRadio;
     private TalkgroupIdentifier mTalkgroup;
@@ -94,10 +94,6 @@ public class CapacityPlusEncryptedVoiceChannelUser extends CapacityPlusVoiceChan
     {
         return getMessage().getHex(UNKNOWN_2, 2);
     }
-    public String getUnknown3()
-    {
-        return getMessage().getHex(UNKNOWN_3, 2);
-    }
 
     /**
      * Source radio address

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/full/motorola/CapacityPlusGroupVoiceChannelUser.java

@@ -1,236 +0,0 @@
-/*
- * *****************************************************************************
- * Copyright (C) 2014-2023 Dennis Sheirer
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- * ****************************************************************************
- */
-
-package io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola;
-
-import io.github.dsheirer.bits.CorrectedBinaryMessage;
-import io.github.dsheirer.identifier.Identifier;
-import io.github.dsheirer.identifier.radio.RadioIdentifier;
-import io.github.dsheirer.identifier.talkgroup.TalkgroupIdentifier;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
-import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
-import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
-import io.github.dsheirer.module.decode.dmr.identifier.DMRRadio;
-import io.github.dsheirer.module.decode.dmr.identifier.DMRTalkgroup;
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Motorola Capacity Plus - Group Voice Channel User
- */
-public class CapacityPlusGroupVoiceChannelUser extends CapacityPlusVoiceChannelUser implements ITimeslotFrequencyReceiver
-{
-    private static final int[] CAPACITY_PLUS_GROUP_ADDRESS = new int[]{40, 41, 42, 43, 44, 45, 46, 47};
-    private static final int[] CONVENTIONAL_GROUP_ADDRESS = new int[]{24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
-            36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
-    private static final int[] REST_CHANNEL = new int[]{51, 52, 53, 54};
-    private static final int[] REST_CHANNEL_TIMESLOT = new int[]{55};
-    private static final int[] CAPACITY_PLUS_SOURCE_ADDRESS = new int[]{56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71};
-    private static final int[] CONVENTIONAL_SOURCE_ADDRESS = new int[]{48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
-            60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71};
-    private static final int[] UNKNOWN = new int[]{72, 73, 74, 75, 76, 77, 78, 79};
-
-    private RadioIdentifier mRadio;
-    private TalkgroupIdentifier mTalkgroup;
-    private DMRLogicalChannel mRestChannel;
-    private List<Identifier> mIdentifiers;
-
-    /**
-     * Constructs an instance.
-     *
-     * @param message for the link control payload
-     */
-    public CapacityPlusGroupVoiceChannelUser(CorrectedBinaryMessage message, long timestamp, int timeslot)
-    {
-        super(message, timestamp, timeslot);
-    }
-
-    @Override
-    public String toString()
-    {
-        StringBuilder sb = new StringBuilder();
-
-        if(!isValid())
-        {
-            sb.append("[CRC-ERROR] ");
-        }
-
-        if(isEncrypted())
-        {
-            sb.append(" ENCRYPTED");
-        }
-
-        if(isReservedBitSet())
-        {
-            sb.append(" RESERVED-BIT");
-        }
-
-        if(getServiceOptions().isCapacityPlus())
-        {
-            sb.append("FLC MOTOROLA CAP+ GROUP VOICE CHANNEL USER");
-        }
-        else
-        {
-            sb.append("FLC MOTOROLA CONV/IP SITE GROUP VOICE CHANNEL USER");
-        }
-        sb.append(" FM:").append(getRadio());
-        sb.append(" TO:").append(getTalkgroup());
-
-        if(hasRestChannel())
-        {
-            sb.append(" REST:");
-            sb.append(getRestChannel());
-        }
-
-        sb.append(" ").append(getServiceOptions());
-        sb.append(" MSG:").append(getMessage().toHexString());
-        return sb.toString();
-    }
-
-    /**
-     * Unknown 8-bit field
-     */
-    public String getUnknown()
-    {
-        return getMessage().getHex(UNKNOWN, 2);
-    }
-
-    /**
-     * Logical channel number (ie repeater number).
-     */
-    public DMRLogicalChannel getRestChannel()
-    {
-        if(mRestChannel == null)
-        {
-            mRestChannel = new DMRLogicalChannel(getRestChannelRepeater(), getRestChannelTimeslot());
-        }
-
-        return mRestChannel;
-    }
-
-    /**
-     * Rest repeater number
-     */
-    public int getRestChannelRepeater()
-    {
-        return getMessage().getInt(REST_CHANNEL) + 1;
-    }
-
-    /**
-     * Rest timeslot
-     *
-     * @return
-     */
-    public int getRestChannelTimeslot()
-    {
-        return getMessage().getInt(REST_CHANNEL_TIMESLOT) + 1;
-    }
-
-    /**
-     * Indicates if this message has a rest channel indicated for the call
-     */
-    public boolean hasRestChannel()
-    {
-        return getServiceOptions().isCapacityPlus() && getRestChannelRepeater() != 0;
-    }
-
-    /**
-     * Source radio address
-     */
-    public RadioIdentifier getRadio()
-    {
-        if(mRadio == null)
-        {
-            if(getServiceOptions().isCapacityPlus())
-            {
-                mRadio = DMRRadio.createFrom(getMessage().getInt(CAPACITY_PLUS_SOURCE_ADDRESS));
-            }
-            else
-            {
-                mRadio = DMRRadio.createFrom(getMessage().getInt(CONVENTIONAL_SOURCE_ADDRESS));
-            }
-        }
-
-        return mRadio;
-    }
-
-    /**
-     * Talkgroup address
-     */
-    public TalkgroupIdentifier getTalkgroup()
-    {
-        if(mTalkgroup == null)
-        {
-            if(getServiceOptions().isCapacityPlus())
-            {
-                mTalkgroup = DMRTalkgroup.create(getMessage().getInt(CAPACITY_PLUS_GROUP_ADDRESS));
-            }
-            else
-            {
-                mTalkgroup = DMRTalkgroup.create(getMessage().getInt(CONVENTIONAL_GROUP_ADDRESS));
-            }
-        }
-
-        return mTalkgroup;
-    }
-
-    @Override
-    public List<Identifier> getIdentifiers()
-    {
-        if(mIdentifiers == null)
-        {
-            mIdentifiers = new ArrayList<>();
-            mIdentifiers.add(getTalkgroup());
-            mIdentifiers.add(getRadio());
-
-            if(hasRestChannel())
-            {
-                mIdentifiers.add(getRestChannel());
-            }
-        }
-
-        return mIdentifiers;
-    }
-
-    /**
-     * Exposes the rest channel logical slot number so that a LSN to frequency map can be applied to this message.
-     */
-    @Override
-    public int[] getLogicalTimeslotNumbers()
-    {
-        return getRestChannel().getLSNArray();
-    }
-
-    /**
-     * Applies the LSN to frequency map to the rest channel.
-     *
-     * @param timeslotFrequencies that match the logical timeslots
-     */
-    @Override
-    public void apply(List<TimeslotFrequency> timeslotFrequencies)
-    {
-        for(TimeslotFrequency timeslotFrequency : timeslotFrequencies)
-        {
-            if(getRestChannel().getLogicalSlotNumber() == timeslotFrequency.getNumber())
-            {
-                getRestChannel().setTimeslotFrequency(timeslotFrequency);
-            }
-        }
-    }
-}

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/full/motorola/CapacityPlusVoiceChannelUser.java

@@ -20,15 +20,17 @@
 package io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola;
 
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
+import io.github.dsheirer.module.decode.dmr.message.IServiceOptionsProvider;
 import io.github.dsheirer.module.decode.dmr.message.data.lc.full.FullLCMessage;
 import io.github.dsheirer.module.decode.dmr.message.type.CapacityPlusServiceOptions;
 
 /**
  * Any Capacity Plus Voice Channel User link control message that contains vendor-specific service options.
  */
-public abstract class CapacityPlusVoiceChannelUser extends FullLCMessage
+public abstract class CapacityPlusVoiceChannelUser extends FullLCMessage implements IServiceOptionsProvider
 {
     private static final int[] SERVICE_OPTIONS = new int[]{16, 17, 18, 19, 20, 21, 22, 23};
+    //Reed Solomon FEC: 72-95
 
     private CapacityPlusServiceOptions mServiceOptions;
 

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/full/motorola/CapacityPlusWideAreaVoiceChannelUser.java

@@ -23,7 +23,7 @@ import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.identifier.radio.RadioIdentifier;
 import io.github.dsheirer.identifier.talkgroup.TalkgroupIdentifier;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
+import io.github.dsheirer.module.decode.dmr.channel.DmrRestLsn;
 import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
 import io.github.dsheirer.module.decode.dmr.identifier.DMRRadio;
@@ -32,21 +32,23 @@ import java.util.ArrayList;
 import java.util.List;
 
 /**
- * Motorola Capacity Plus - Wide Area (Multi-Site) Voice Channel User
+ * Motorola Capacity Plus - Wide Area (Linked or Multi-Site) Voice Channel User
+ *
+ * Note: in Linked Capacity Plus talkgroups range 1-255 and radio IDs range 1-65535
  */
 public class CapacityPlusWideAreaVoiceChannelUser extends CapacityPlusVoiceChannelUser implements ITimeslotFrequencyReceiver
 {
-    private static final int[] UNKNOWN_1 = new int[]{24, 25, 26, 27, 28, 29, 30, 31};
+    //Bits 16-23: Service Options
-    private static final int[] GROUP_ADDRESS = new int[]{40, 41, 42, 43, 44, 45, 46, 47};
+    private static final int[] UNKNOWN_1 = new int[]{24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39};
-    //private static final int[] REST_REPEATER = new int[]{51, 52, 53, 54};
+    private static final int[] GROUP_ID = new int[]{40, 41, 42, 43, 44, 45, 46, 47};
-    //private static final int[] REST_TIMESLOT = new int[]{55};
+    private static final int[] UNUSED = new int[]{48, 49, 50};
-    private static final int[] REST_LSN = new int[]{52, 53, 54, 55};
+    private static final int[] REST_LSN = new int[]{51, 52, 53, 54, 55};
-    private static final int[] SOURCE_ADDRESS = new int[]{56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71};
+    private static final int[] RADIO_ID = new int[]{56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71};
-    private static final int[] UNKNOWN_3 = new int[]{72, 73, 74, 75, 76, 77, 78, 79};
+    //Reed Solomon FEC: 72-95
 
     private RadioIdentifier mRadio;
     private TalkgroupIdentifier mTalkgroup;
-    private DMRLogicalChannel mRestChannel;
+    private DmrRestLsn mRestChannel;
     private List<Identifier> mIdentifiers;
 
     /**
@@ -82,18 +84,12 @@ public class CapacityPlusWideAreaVoiceChannelUser extends CapacityPlusVoiceChann
         sb.append("FLC MOTOROLA CAP+ WIDE-AREA VOICE CHANNEL USER FM:");
         sb.append(getRadio());
         sb.append(" TO:").append(getTalkgroup());
-        sb.append(" REST:");
         if(hasRestChannel())
         {
-            sb.append(getRestChannel());
+            sb.append(" ").append(getRestChannel());
         }
-        else
-        {
-            sb.append("--");
-        }
-        sb.append(" UNK1:").append(getUnknown1());
-        sb.append(" UNK2:").append(getUnknown2());
         sb.append(" ").append(getServiceOptions());
+        sb.append(" UNK1:").append(getUnknown1());
         sb.append(" MSG:").append(getMessage().toHexString());
         return sb.toString();
     }
@@ -101,27 +97,19 @@ public class CapacityPlusWideAreaVoiceChannelUser extends CapacityPlusVoiceChann
     /**
      * Unknown1 8-bit field
      */
-    public int getUnknown1()
+    public String getUnknown1()
     {
-        return getMessage().getInt(UNKNOWN_1);
+        return getMessage().getHex(UNKNOWN_1, 4);
-    }
-
-    /**
-     * Unknown2 8-bit field
-     */
-    public int getUnknown2()
-    {
-        return getMessage().getInt(UNKNOWN_3);
     }
 
     /**
      * Logical channel number (ie repeater number).
      */
-    public DMRLogicalChannel getRestChannel()
+    public DmrRestLsn getRestChannel()
     {
         if(mRestChannel == null)
         {
-            mRestChannel = new DMRLogicalChannel(getRestRepeater(), getRestTimeslot());
+            mRestChannel = new DmrRestLsn(getRestLSN());
         }
 
         return mRestChannel;
@@ -136,25 +124,12 @@ public class CapacityPlusWideAreaVoiceChannelUser extends CapacityPlusVoiceChann
         return getMessage().getInt(REST_LSN);
     }
 
-    /**
-     * Rest channel timeslot
-     */
-    public int getRestTimeslot()
-    {
-        return (getRestLSN() % 2 == 0) ? 2 : 1;
-    }
-
-    /**
-     * Rest channel repeater number
-     */
-    public int getRestRepeater() { return (int) Math.ceil(getRestLSN() / 2.0); }
-
     /**
      * Indicates if this message has a reset channel defined.
      */
     public boolean hasRestChannel()
     {
-        return getRestRepeater() != 0;
+        return getRestLSN() != 0;
     }
 
     /**
@@ -164,7 +139,7 @@ public class CapacityPlusWideAreaVoiceChannelUser extends CapacityPlusVoiceChann
     {
         if(mRadio == null)
         {
-            mRadio = DMRRadio.createFrom(getMessage().getInt(SOURCE_ADDRESS));
+            mRadio = DMRRadio.createFrom(getMessage().getInt(RADIO_ID));
         }
 
         return mRadio;
@@ -177,7 +152,7 @@ public class CapacityPlusWideAreaVoiceChannelUser extends CapacityPlusVoiceChann
     {
         if(mTalkgroup == null)
         {
-            mTalkgroup = DMRTalkgroup.create(getMessage().getInt(GROUP_ADDRESS));
+            mTalkgroup = DMRTalkgroup.create(getMessage().getInt(GROUP_ID));
         }
 
         return mTalkgroup;
@@ -201,9 +176,9 @@ public class CapacityPlusWideAreaVoiceChannelUser extends CapacityPlusVoiceChann
      * Exposes the rest channel logical slot number so that a LSN to frequency map can be applied to this message.
      */
     @Override
-    public int[] getLogicalTimeslotNumbers()
+    public int[] getLogicalSlotNumbers()
     {
-        return getRestChannel().getLSNArray();
+        return getRestChannel().getLogicalSlotNumbers();
     }
 
     /**
@@ -216,7 +191,7 @@ public class CapacityPlusWideAreaVoiceChannelUser extends CapacityPlusVoiceChann
     {
         for(TimeslotFrequency timeslotFrequency : timeslotFrequencies)
         {
-            if(getRestChannel().getLogicalSlotNumber() == timeslotFrequency.getNumber())
+            if(getRestChannel().getValue() == timeslotFrequency.getNumber())
             {
                 getRestChannel().setTimeslotFrequency(timeslotFrequency);
             }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/full/motorola/MotorolaEncryptionParameters.java

@@ -0,0 +1,128 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola;
+
+import io.github.dsheirer.bits.CorrectedBinaryMessage;
+import io.github.dsheirer.identifier.Identifier;
+import io.github.dsheirer.module.decode.dmr.identifier.DMRTalkgroup;
+import io.github.dsheirer.module.decode.dmr.message.data.lc.full.FullLCMessage;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Motorola Encryption Parameters
+ * <p>
+ * Note: observed as FLC payload for a PI_HEADER slot type.
+ * Note: observed on a possible Hytera (clone) system that was configured as IP Site Connect compatible.
+ */
+public class MotorolaEncryptionParameters extends FullLCMessage
+{
+    private static final int[] KEY_ID = new int[]{16, 17, 18, 19, 20, 21, 22, 23};
+    private static final int[] INITIALIZATION_VECTOR = new int[]{24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+            38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55};
+    private static final int[] ALGORITHM = new int[]{56, 57, 58, 59, 60, 61, 62, 63};
+    private static final int[] DESTINATION_GROUP = new int[]{64, 65, 66, 67, 68, 69, 70, 71};
+    //Reed Solomon FEC: 72-95
+
+    private DMRTalkgroup mTalkgroup;
+    private List<Identifier> mIdentifiers;
+
+    /**
+     * Constructs an instance.
+     *
+     * @param message for the link control payload
+     */
+    public MotorolaEncryptionParameters(CorrectedBinaryMessage message, long timestamp, int timeslot)
+    {
+        super(message, timestamp, timeslot);
+    }
+
+    @Override
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+
+        if(!isValid())
+        {
+            sb.append("[CRC-ERROR] ");
+        }
+
+        if(isEncrypted())
+        {
+            sb.append(" *ENCRYPTED*");
+        }
+
+        if(isReservedBitSet())
+        {
+            sb.append(" *RESERVED-BIT*");
+        }
+
+        sb.append("FLC MOTOROLA ENCRYPTION PARAMETERS - ALGORITHM:").append(getAlgorithm());
+        sb.append(" KEY:").append(getKeyId());
+        sb.append(" IV?:").append(getInitializationVector());
+        sb.append(" TALKGROUP:").append(getTalkgroup());
+        sb.append(" MSG:").append(getMessage().toHexString());
+        return sb.toString();
+    }
+
+    public DMRTalkgroup getTalkgroup()
+    {
+        if(mTalkgroup == null)
+        {
+            mTalkgroup = new DMRTalkgroup(getMessage().getInt(DESTINATION_GROUP));
+        }
+
+        return mTalkgroup;
+    }
+
+    public int getKeyId()
+    {
+        return getMessage().getInt(KEY_ID);
+    }
+
+    public String getAlgorithm()
+    {
+        int algorithm = getMessage().getInt(ALGORITHM);
+
+        if(algorithm == 0)
+        {
+            return "EP/ARC4";
+        }
+
+        return "UNK(" + algorithm + ")";
+    }
+
+    public String getInitializationVector()
+    {
+        return getMessage().getHex(INITIALIZATION_VECTOR, 8);
+    }
+
+    @Override
+    public List<Identifier> getIdentifiers()
+    {
+        if(mIdentifiers == null)
+        {
+            mIdentifiers = new ArrayList<>();
+            mIdentifiers.add(getTalkgroup());
+        }
+
+        return mIdentifiers;
+    }
+}

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/full/motorola/MotorolaGroupVoiceChannelUser.java

@@ -0,0 +1,122 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message.data.lc.full.motorola;
+
+import io.github.dsheirer.bits.CorrectedBinaryMessage;
+import io.github.dsheirer.identifier.Identifier;
+import io.github.dsheirer.identifier.radio.RadioIdentifier;
+import io.github.dsheirer.identifier.talkgroup.TalkgroupIdentifier;
+import io.github.dsheirer.module.decode.dmr.identifier.DMRRadio;
+import io.github.dsheirer.module.decode.dmr.identifier.DMRTalkgroup;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Motorola Capacity Plus - Group Voice Channel User
+ */
+public class MotorolaGroupVoiceChannelUser extends CapacityPlusVoiceChannelUser
+{
+    private static final int[] GROUP_ADDRESS = new int[]{24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
+            36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
+    private static final int[] SOURCE_ADDRESS = new int[]{48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+            60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71};
+    //Reed Solomon FEC: 72-95
+
+    private RadioIdentifier mRadio;
+    private TalkgroupIdentifier mTalkgroup;
+    private List<Identifier> mIdentifiers;
+
+    /**
+     * Constructs an instance.
+     *
+     * @param message for the link control payload
+     */
+    public MotorolaGroupVoiceChannelUser(CorrectedBinaryMessage message, long timestamp, int timeslot)
+    {
+        super(message, timestamp, timeslot);
+    }
+
+    @Override
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+
+        if(!isValid())
+        {
+            sb.append("[CRC-ERROR] ");
+        }
+
+        if(isEncrypted())
+        {
+            sb.append(" ENCRYPTED");
+        }
+
+        if(isReservedBitSet())
+        {
+            sb.append(" RESERVED-BIT");
+        }
+
+        sb.append("FLC MOTOROLA GROUP VOICE CHANNEL USER");
+        sb.append(" FM:").append(getRadio());
+        sb.append(" TO:").append(getTalkgroup());
+        sb.append(" ").append(getServiceOptions());
+        sb.append(" MSG:").append(getMessage().toHexString());
+        return sb.toString();
+    }
+
+    /**
+     * Source radio address
+     */
+    public RadioIdentifier getRadio()
+    {
+        if(mRadio == null)
+        {
+            mRadio = DMRRadio.createFrom(getMessage().getInt(SOURCE_ADDRESS));
+        }
+
+        return mRadio;
+    }
+
+    /**
+     * Talkgroup address
+     */
+    public TalkgroupIdentifier getTalkgroup()
+    {
+        if(mTalkgroup == null)
+        {
+            mTalkgroup = DMRTalkgroup.create(getMessage().getInt(GROUP_ADDRESS));
+        }
+
+        return mTalkgroup;
+    }
+
+    @Override
+    public List<Identifier> getIdentifiers()
+    {
+        if(mIdentifiers == null)
+        {
+            mIdentifiers = new ArrayList<>();
+            mIdentifiers.add(getTalkgroup());
+            mIdentifiers.add(getRadio());
+        }
+
+        return mIdentifiers;
+    }
+}

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/shorty/ActivityUpdateMessage.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,7 +22,6 @@ package io.github.dsheirer.module.decode.dmr.message.data.lc.shorty;
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.module.decode.dmr.message.type.Activity;
-
 import java.util.Collections;
 import java.util.List;
 
@@ -55,13 +54,18 @@ public class ActivityUpdateMessage extends ShortLCMessage
         {
             sb.append("[CRC ERROR] ");
         }
-
+        sb.append("SLC TS1:");
-        sb.append("SLC ACTIVITY UPDATE TS1 [");
-        sb.append(getHashAddressTS1()).append("] ");
         sb.append(getActivityTS1());
-        sb.append(" / TS2 [");
+        if(getActivityTS1() != Activity.IDLE)
-        sb.append(getHashAddressTS2()).append("] ");
+        {
+            sb.append(" [").append(getHashAddressTS1()).append("]");
+        }
+        sb.append(" TS2:");
         sb.append(getActivityTS2());
+        if(getActivityTS2() != Activity.IDLE)
+        {
+            sb.append(" [").append(getHashAddressTS2()).append("]");
+        }
         sb.append(" MSG:").append(getMessage().toHexString());
         return sb.toString();
     }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/shorty/CapacityPlusRestChannel.java

@@ -21,7 +21,7 @@ package io.github.dsheirer.module.decode.dmr.message.data.lc.shorty;
 
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.Identifier;
-import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
+import io.github.dsheirer.module.decode.dmr.channel.DmrRestLsn;
 import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
 import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
 import io.github.dsheirer.module.decode.dmr.identifier.DMRSite;
@@ -34,13 +34,11 @@ import java.util.List;
 public class CapacityPlusRestChannel extends ShortLCMessage implements ITimeslotFrequencyReceiver
 {
     private static final int[] UNKNOWN = new int[]{12, 13, 14};
-    //private static final int[] REST_REPEATER = new int[]{15, 16, 17, 18};
     private static final int[] REST_LSN = new int[]{15, 16, 17, 18, 19};
-    //private static final int[] REST_TIMESLOT = new int[]{19};
     private static final int[] SITE = new int[]{20, 21, 22, 23, 24};
     private static final int[] UNKNOWN_2 = new int[]{25, 26, 27};
 
-    private DMRLogicalChannel mRestChannel;
+    private DmrRestLsn mRestChannel;
     private DMRSite mSite;
     private List<Identifier> mIdentifiers;
 
@@ -63,7 +61,7 @@ public class CapacityPlusRestChannel extends ShortLCMessage implements ITimeslot
             sb.append("[CRC ERROR] ");
         }
         sb.append("SLC MOTOROLA CAP+ SITE:").append(getSite());
-        sb.append(" REST:").append(getRestChannel());
+        sb.append(" ").append(getRestChannel());
         sb.append(" MSG:").append(getMessage().toHexString());
         return sb.toString();
     }
@@ -84,11 +82,11 @@ public class CapacityPlusRestChannel extends ShortLCMessage implements ITimeslot
     /**
      * Rest Channel Number
      */
-    public DMRLogicalChannel getRestChannel()
+    public DmrRestLsn getRestChannel()
     {
         if(mRestChannel == null)
         {
-            mRestChannel = new DMRLogicalChannel(getRestRepeater(), getRestTimeslot());
+            mRestChannel = new DmrRestLsn(getRestLSN());
         }
 
         return mRestChannel;
@@ -103,26 +101,13 @@ public class CapacityPlusRestChannel extends ShortLCMessage implements ITimeslot
         return getMessage().getInt(REST_LSN);
     }
 
-    /**
-     * Rest repeater
-     */
-    public int getRestRepeater() { return (int) Math.ceil(getRestLSN() / 2.0); }
-
-    /**
-     * Rest timeslot
-     */
-    public int getRestTimeslot()
-    {
-        return (getRestLSN() % 2 == 0) ? 2 : 1;
-    }
-
     /**
      * Exposes the rest channel logical slot number so that a LSN to frequency map can be applied to this message.
      */
     @Override
-    public int[] getLogicalTimeslotNumbers()
+    public int[] getLogicalSlotNumbers()
     {
-        return getRestChannel().getLSNArray();
+        return getRestChannel().getLogicalSlotNumbers();
     }
 
     /**
@@ -134,7 +119,7 @@ public class CapacityPlusRestChannel extends ShortLCMessage implements ITimeslot
     {
         for(TimeslotFrequency timeslotFrequency: timeslotFrequencies)
         {
-            if(getRestChannel().getLogicalSlotNumber() == timeslotFrequency.getNumber())
+            if(getRestChannel().getValue() == timeslotFrequency.getNumber())
             {
                 getRestChannel().setTimeslotFrequency(timeslotFrequency);
             }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/shorty/NullMessage.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -21,7 +21,6 @@ package io.github.dsheirer.module.decode.dmr.message.data.lc.shorty;
 
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.Identifier;
-
 import java.util.Collections;
 import java.util.List;
 
@@ -48,8 +47,7 @@ public class NullMessage extends ShortLCMessage
         {
             sb.append("[CRC ERROR] ");
         }
-        sb.append("SLC IDLE/NULL MESSAGE");
+        sb.append("SLC TS1:IDLE TS2:IDLE");
-        sb.append(" MSG:").append(getMessage().toHexString());
         return sb.toString();
     }
 

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/packet/DMRPacketMessage.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -23,7 +23,6 @@ import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.module.decode.dmr.message.DMRMessage;
 import io.github.dsheirer.module.decode.ip.IPacket;
-
 import java.util.ArrayList;
 import java.util.List;
 
@@ -75,6 +74,10 @@ public class DMRPacketMessage extends DMRMessage
         sb.append("CC:").append(getPacketSequence().getPacketSequenceHeader().getSlotType().getColorCode());
         sb.append(" FM:").append(getPacketSequence().getPacketSequenceHeader().getSourceLLID());
         sb.append(" TO:").append(getPacketSequence().getPacketSequenceHeader().getDestinationLLID());
+        if(getPacketSequence().isEncrypted())
+        {
+            sb.append(" ENCRYPTED");
+        }
         sb.append(" ").append(getPacket().toString());
         return sb.toString();
     }

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/packet/PacketSequence.java

@@ -24,6 +24,7 @@ import io.github.dsheirer.module.decode.dmr.message.data.csbk.standard.Preamble;
 import io.github.dsheirer.module.decode.dmr.message.data.header.PacketSequenceHeader;
 import io.github.dsheirer.module.decode.dmr.message.data.header.ProprietaryDataHeader;
 import io.github.dsheirer.module.decode.dmr.message.data.header.UDTHeader;
+import io.github.dsheirer.module.decode.dmr.message.data.header.motorola.MotorolaDataEncryptionHeader;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -89,6 +90,15 @@ public class PacketSequence
         return false;
     }
 
+    /**
+     * Indicates if this sequence contains a Motorola data encryption header.
+     * @return true if so
+     */
+    public boolean isEncrypted()
+    {
+        return hasProprietaryDataHeader() && getProprietaryDataHeader() instanceof MotorolaDataEncryptionHeader;
+    }
+
     public int getTimeslot()
     {
         return mTimeslot;

src/main/java/io/github/dsheirer/module/decode/dmr/message/data/packet/PacketSequenceMessageFactory.java

@@ -29,7 +29,10 @@ import io.github.dsheirer.module.decode.dmr.message.data.header.ProprietaryDataH
 import io.github.dsheirer.module.decode.dmr.message.data.header.UDTHeader;
 import io.github.dsheirer.module.decode.dmr.message.data.header.hytera.HyteraProprietaryDataHeader;
 import io.github.dsheirer.module.decode.dmr.message.data.header.motorola.MNISProprietaryDataHeader;
+import io.github.dsheirer.module.decode.dmr.message.data.header.motorola.MotorolaDataEncryptionHeader;
 import io.github.dsheirer.module.decode.dmr.message.type.ApplicationType;
+import io.github.dsheirer.module.decode.dmr.message.type.DataPacketFormat;
+import io.github.dsheirer.module.decode.ip.DefinedShortDataPacket;
 import io.github.dsheirer.module.decode.ip.UnknownPacket;
 import io.github.dsheirer.module.decode.ip.hytera.sds.HyteraTokenHeader;
 import io.github.dsheirer.module.decode.ip.hytera.sds.HyteraUnknownPacket;
@@ -179,9 +182,20 @@ public class PacketSequenceMessageFactory
                         packetSequence.getTimeslot(), packetSequence.getPacketSequenceHeader().getTimestamp());
             }
         }
+        else if(secondaryHeader instanceof MotorolaDataEncryptionHeader &&
+                packetSequence.getPacketSequenceHeader().getDataPacketFormat() == DataPacketFormat.DEFINED_SHORT_DATA)
+        {
+            return createDefinedShortData(packetSequence, packet);
+        }
         else
         {
-            mLog.info("Unknown Proprietary Packet Header Type - creating unknown packet.");
+            if(packetSequence.getProprietaryDataHeader() != null)
+            {
+                mLog.info("Unknown Proprietary Packet Header Type - creating unknown packet. Data Packet Format: " +
+                        packetSequence.getPacketSequenceHeader().getDataPacketFormat() + " Proprietary Header: " +
+                        packetSequence.getProprietaryDataHeader().getClass());
+            }
+
             return new DMRPacketMessage(packetSequence, new UnknownPacket(packet, 0), packet,
                 packetSequence.getTimeslot(), packetSequence.getPacketSequenceHeader().getTimestamp());
         }
@@ -217,8 +231,7 @@ public class PacketSequenceMessageFactory
      */
     public static IMessage createDefinedShortData(PacketSequence packetSequence, CorrectedBinaryMessage packet)
     {
-        mLog.info("Unknown Short Data Packet Header Type - creating unknown packet.");
+        return new DMRPacketMessage(packetSequence, new DefinedShortDataPacket(packet, 0), packet,
-        return new DMRPacketMessage(packetSequence, new UnknownPacket(packet, 0), packet,
             packetSequence.getTimeslot(), packetSequence.getPacketSequenceHeader().getTimestamp());
     }
 

src/main/java/io/github/dsheirer/module/decode/dmr/message/type/CapacityPlusServiceOptions.java

@@ -83,7 +83,7 @@ public class CapacityPlusServiceOptions extends ServiceOptions
 
         if(isInterruptible())
         {
-            flags.add("TXI CALL");
+            flags.add("INTERRUPTIBLE CALL"); //Indicates another user can interrupt this call
         }
 
         if(getPriority() > 0)

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/EMB.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- *  Copyright (C) 2014-2020 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -21,18 +21,16 @@ package io.github.dsheirer.module.decode.dmr.message.voice;
 
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.module.decode.dmr.message.type.LCSS;
+import java.util.HashSet;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.HashSet;
-
 /**
  * DMR Voice Frame B-F Embedded Signalling Chunk
  */
 public class EMB
 {
     private final static Logger mLog = LoggerFactory.getLogger(EMB.class);
-    public static final int[] CRC_CHECKSUMS = new int[]{0x02F, 0x11E, 0x1B7, 0x1E2, 0x1C9, 0x0E5, 0x073};
     private static final int[] VALID_WORDS = new int[]{
         0x0000, 0x0273, 0x04E5, 0x0696, 0x09C9, 0x0BBA, 0x0D2C, 0x0F5F, 0x11E2, 0x1391, 0x1507, 0x1774, 0x182B, 0x1A58,
         0x1CCE, 0x1EBD, 0x21B7, 0x23C4, 0x2552, 0x2721, 0x287E, 0x2A0D, 0x2C9B, 0x2EE8, 0x3055, 0x3226, 0x34B0, 0x36C3,

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/VoiceEMBMessage.java

@@ -1,6 +1,6 @@
 /*
  * *****************************************************************************
- * Copyright (C) 2014-2022 Dennis Sheirer
+ * Copyright (C) 2014-2023 Dennis Sheirer
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -23,6 +23,7 @@ import io.github.dsheirer.bits.BinaryMessage;
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
 import io.github.dsheirer.module.decode.dmr.message.CACH;
+import io.github.dsheirer.module.decode.dmr.message.voice.embedded.EmbeddedParameters;
 
 /**
  * DMR Voice Frames B - F
@@ -35,6 +36,7 @@ public class VoiceEMBMessage extends VoiceMessage
     private static final int PAYLOAD_END = 172;
 
     private EMB mEMB;
+    private EmbeddedParameters mEmbeddedParameters;
 
     /**
      * DMR message frame.  This message is comprised of a 24-bit prefix and a 264-bit message frame.  Outbound base
@@ -61,7 +63,11 @@ public class VoiceEMBMessage extends VoiceMessage
 
         sb.append(getSyncPattern().toString());
 
-        if(getEMB().isValid() && getEMB().isEncrypted())
+        if(hasEmbeddedParameters())
+        {
+            sb.append(" ").append(getEmbeddedParameters());
+        }
+        else if(getEMB().isValid() && getEMB().isEncrypted())
         {
             sb.append(" ENCRYPTED");
         }
@@ -97,4 +103,34 @@ public class VoiceEMBMessage extends VoiceMessage
     {
         return getMessage().getSubMessage(PAYLOAD_START, PAYLOAD_END);
     }
+
+    /**
+     * Optional embedded parameters for this voice super-frame.
+     * @return encryption parameters or null.
+     */
+    public EmbeddedParameters getEmbeddedParameters()
+    {
+        return mEmbeddedParameters;
+    }
+
+    /**
+     * Sets the embedded parameters for this voice message that apply to the entire voice super-frame.
+     *
+     * These parameters are normally extracted by an external process and applied to voice frame F and the parameters
+     * apply to the entire voice super-frame.
+     * @param embeddedParameters to set
+     */
+    public void setEmbeddedParameters(EmbeddedParameters embeddedParameters)
+    {
+        mEmbeddedParameters = embeddedParameters;
+    }
+
+    /**
+     * Indicates if this voice message contains embedded parameters.
+     * @return true if it contains.
+     */
+    public boolean hasEmbeddedParameters()
+    {
+        return mEmbeddedParameters != null;
+    }
 }

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/VoiceMessage.java

@@ -1,3 +1,22 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
 package io.github.dsheirer.module.decode.dmr.message.voice;
 
 import io.github.dsheirer.bits.CorrectedBinaryMessage;
@@ -5,7 +24,6 @@ import io.github.dsheirer.identifier.Identifier;
 import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
 import io.github.dsheirer.module.decode.dmr.message.CACH;
 import io.github.dsheirer.module.decode.dmr.message.DMRBurst;
-
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -15,6 +33,14 @@ import java.util.List;
  */
 public abstract class VoiceMessage extends DMRBurst
 {
+    /**
+     * Initialization vector (IV) fragments can be embedded into the AMBE voice frame for late entry to encrypted calls
+     * using bits 71, 67, 63, and 59 from the interleaved (ie transmitted order) voice frame.
+     */
+    public static int[] FRAME_1_IV_FRAGMENT = new int[]{95, 91, 87, 83};
+    public static int[] FRAME_2_IV_FRAGMENT = new int[]{215, 211, 207, 203};
+    public static int[] FRAME_3_IV_FRAGMENT = new int[]{287, 283, 279, 275};
+
     /**
      * DMR message frame.  This message is comprised of a 24-bit prefix and a 264-bit message frame.  Outbound base
      * station frames transmit a Common Announcement Channel (CACH) in the 24-bit prefix, whereas Mobile inbound frames
@@ -65,6 +91,24 @@ public abstract class VoiceMessage extends DMRBurst
         return frames;
     }
 
+    /**
+     * Extracts the four low-order bits from the deinterleaved C3 vector of each of the three AMBE frames that carry
+     * fragments of the initialization vector (IV) for encrypted calls.  Since we don't have access to the deinterleaved
+     * voice frame here, we perform delinterleaving of the 4-bit nibble using the FRAME_x_IV_FRAGMENT constants.
+     * <p>
+     * See patent: https://patents.google.com/patent/EP2347540B1/en
+     *
+     * @return a three-byte array with the low-order four bits from each frame's C3 vector stored in the low nibble.
+     */
+    public byte[] getIvFragments()
+    {
+        byte[] fragments = new byte[3];
+        fragments[0] = (byte)getMessage().getInt(FRAME_1_IV_FRAGMENT);
+        fragments[1] = (byte)getMessage().getInt(FRAME_2_IV_FRAGMENT);
+        fragments[2] = (byte)getMessage().getInt(FRAME_3_IV_FRAGMENT);
+        return fragments;
+    }
+
     @Override
     public boolean isValid()
     {

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/VoiceSuperFrameProcessor.java

@@ -0,0 +1,282 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message.voice;
+
+import io.github.dsheirer.bits.BinaryMessage;
+import io.github.dsheirer.bits.CorrectedBinaryMessage;
+import io.github.dsheirer.edac.BPTC_16_2;
+import io.github.dsheirer.edac.Golay24;
+import io.github.dsheirer.module.decode.dmr.message.IServiceOptionsProvider;
+import io.github.dsheirer.module.decode.dmr.message.data.lc.full.FullLCMessage;
+import io.github.dsheirer.module.decode.dmr.message.voice.embedded.Arc4EncryptionParameters;
+import io.github.dsheirer.module.decode.dmr.message.voice.embedded.EmbeddedParameters;
+import io.github.dsheirer.module.decode.dmr.message.voice.embedded.NonStandardShortBurst;
+import io.github.dsheirer.module.decode.dmr.message.voice.embedded.NullShortBurst;
+import io.github.dsheirer.module.decode.dmr.message.voice.embedded.ShortBurst;
+import io.github.dsheirer.module.decode.dmr.message.voice.embedded.ShortBurstOpcode;
+import io.github.dsheirer.module.decode.dmr.message.voice.embedded.TransmitInterrupt;
+import io.github.dsheirer.module.decode.dmr.message.voice.embedded.UnknownShortBurst;
+
+/**
+ * Monitors audio call voice frame messaging to detect encrypted audio calls and extract the encryption parameters
+ * that are embedded into the six voice frames that comprise a voice super-frame.
+ * <p>
+ * See patent: https://patents.google.com/patent/EP2347540B1/en - embedding encryption parameters in voice super frame
+ * See patent: https://patents.google.com/patent/US8271009B2 - TXI - interrupting voice transmissions
+ */
+public class VoiceSuperFrameProcessor
+{
+    private static final int[] IV = new int[]{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 24, 25, 26, 27, 28, 29, 30, 31, 32,
+            33, 34, 35, 48, 49, 50, 51, 52, 53, 54, 55};
+    private static final int[] CRC4 = new int[]{56, 57, 58, 59};
+    private boolean mEncrypted = false;
+    private int mAlgorithm;
+    private int mKey;
+    private byte[] mFragmentA;
+    private byte[] mFragmentB;
+    private byte[] mFragmentC;
+    private byte[] mFragmentD;
+    private byte[] mFragmentE;
+
+    /**
+     * Constructor.
+     */
+    public VoiceSuperFrameProcessor()
+    {
+    }
+
+    /**
+     * Indicates if this collector is in collecting mode.
+     *
+     * @return true if collecting.
+     */
+    public boolean isCollecting()
+    {
+        return mEncrypted;
+    }
+
+    /**
+     * Fully resets this collector
+     */
+    public void reset()
+    {
+        mEncrypted = false;
+        softReset();
+    }
+
+    private void softReset()
+    {
+        mAlgorithm = 0;
+        mKey = 0;
+        mFragmentA = null;
+        mFragmentB = null;
+        mFragmentC = null;
+        mFragmentD = null;
+        mFragmentE = null;
+    }
+
+    /**
+     * Indicates if the IV fragments from voice frames A-E have been collected and this is an encrypted call.
+     *
+     * @return true if the fragments are non-null.
+     */
+    private boolean isComplete()
+    {
+        return mEncrypted && mFragmentA != null && mFragmentB != null && mFragmentC != null && mFragmentD != null &&
+                mFragmentE != null;
+    }
+
+    /**
+     * Process full link control message to determine if the current call sequence is encrypted.
+     * @param flc to inspect
+     */
+    public void process(FullLCMessage flc)
+    {
+        if(flc instanceof IServiceOptionsProvider provider && provider.getServiceOptions().isEncrypted())
+        {
+            mEncrypted = true;
+        }
+    }
+
+    /**
+     * Processes the voice frame to extract the IV fragments and the encryption parameters.
+     *
+     * @param voiceMessage to process.
+     */
+    public void process(VoiceMessage voiceMessage)
+    {
+        if(voiceMessage instanceof VoiceEMBMessage voiceEMB)
+        {
+            boolean valid = voiceEMB.getEMB().isValid();
+            boolean encrypted = voiceEMB.getEMB().isEncrypted();
+
+            if(voiceEMB.getEMB().isValid() && voiceEMB.getEMB().isEncrypted())
+            {
+                mEncrypted = true;
+            }
+        }
+
+        switch(voiceMessage.getSyncPattern())
+        {
+            case BASE_STATION_VOICE:
+                mFragmentA = voiceMessage.getIvFragments();
+                break;
+            case BS_VOICE_FRAME_B:
+                mFragmentB = voiceMessage.getIvFragments();
+                break;
+            case BS_VOICE_FRAME_C:
+                mFragmentC = voiceMessage.getIvFragments();
+                break;
+            case BS_VOICE_FRAME_D:
+                mFragmentD = voiceMessage.getIvFragments();
+                break;
+            case BS_VOICE_FRAME_E:
+                mFragmentE = voiceMessage.getIvFragments();
+                break;
+            case BS_VOICE_FRAME_F:
+                if(voiceMessage instanceof VoiceEMBMessage voiceFrame6)
+                {
+                    BinaryMessage frameFFragment = voiceFrame6.getFLCFragment();
+                    ShortBurst shortBurst = extractShortBurst(frameFFragment);
+                    EmbeddedParameters embeddedParameters = new EmbeddedParameters(shortBurst);
+
+                    if(isComplete())
+                    {
+                        String iv = extractIV(voiceMessage.getIvFragments());
+                        embeddedParameters.setIv(iv);
+                    }
+
+                    voiceFrame6.setEmbeddedParameters(embeddedParameters);
+                }
+                softReset();
+                break;
+        }
+    }
+
+    /**
+     * Processes the short burst from the Voice Frame F FLC fragment payload and combines with the optionally available
+     * initialization vector to return a parameters object.
+     *
+     * @param frameFFragment containing the short-burst FLC fragment
+     * @param iv that was previously extracted from the voice super-frame
+     * @return embedded parameters.
+     */
+    private ShortBurst extractShortBurst(BinaryMessage frameFFragment)
+    {
+        CorrectedBinaryMessage decoded = BPTC_16_2.decodeShortBurst(new CorrectedBinaryMessage(frameFFragment));
+
+        if(decoded == null)
+        {
+            return new NonStandardShortBurst(BPTC_16_2.deinterleave(new CorrectedBinaryMessage(frameFFragment)));
+        }
+
+        ShortBurstOpcode opcode = ShortBurst.getOpcode(decoded);
+        return switch(opcode)
+        {
+            case NULL -> new NullShortBurst(decoded);
+            case ARC4_ENCRYPTION -> new Arc4EncryptionParameters(decoded);
+            case TXI_DELAY -> new TransmitInterrupt(decoded);
+            default -> new UnknownShortBurst(decoded);
+        };
+    }
+
+    /**
+     * Extracts the encryption initialization vector (IV) from the voice frame fragments, performs error detection and
+     * correction and if the error correction passes, returns the hex string version of the 32-bit IV.
+     *
+     * @param mFragmentF voice frame 6 IV fragments.
+     * @return 32-bit IV as hex string or null if the extraction process couldn't extract/correct the IV.
+     */
+    private String extractIV(byte[] mFragmentF)
+    {
+        CorrectedBinaryMessage reassembled = new CorrectedBinaryMessage(72);
+        reassembled.setByte(0, combine(mFragmentA[0], mFragmentB[0]));
+        reassembled.setByte(8, combine(mFragmentC[0], mFragmentD[0]));
+        reassembled.setByte(16, combine(mFragmentE[0], mFragmentF[0]));
+        reassembled.setByte(24, combine(mFragmentA[1], mFragmentB[1]));
+        reassembled.setByte(32, combine(mFragmentC[1], mFragmentD[1]));
+        reassembled.setByte(40, combine(mFragmentE[1], mFragmentF[1]));
+        reassembled.setByte(48, combine(mFragmentA[2], mFragmentB[2]));
+        reassembled.setByte(56, combine(mFragmentC[2], mFragmentD[2]));
+        reassembled.setByte(64, combine(mFragmentE[2], mFragmentF[2]));
+
+        int check1 = Golay24.checkAndCorrect(reassembled, 0);
+        int check2 = Golay24.checkAndCorrect(reassembled, 24);
+        int check3 = Golay24.checkAndCorrect(reassembled, 48);
+
+        if(check1 == 2 || check2 == 2 || check3 == 2)
+        {
+            return null;
+        }
+
+        int iv = reassembled.getInt(IV);
+        int checksum = reassembled.getInt(CRC4);
+
+        boolean passes = crc4(iv, checksum);
+
+        if(passes)
+        {
+            return String.format("%04X", iv);
+        }
+        else
+        {
+            return String.format("%04X", iv) + "(CRC-FAIL " + check1 + "/" + check2 + "/" + check3 + "/" +
+                    reassembled.getCorrectedBitCount() + ")";
+        }
+    }
+
+    /**
+     * Combines the low nibble from the hi byte with the low nibble from the lo byte
+     *
+     * @param high byte containing a low order nibble
+     * @param low byte containing a low order nibble
+     * @return low order nibbles from hi and lo bytes combined.
+     */
+    private byte combine(byte high, byte low)
+    {
+        return (byte)(((high & 0xF) << 4) | (low & 0xF));
+    }
+
+    /**
+     * Calculates a CRC value from the polynomial: x4 + x1 + 1  (0x13) using an initial fill of 0xF.
+     * @param value to calculate CRC from
+     * @param crc to compare
+     * @return true if the calculated CRC from the value matches the crc argument value.
+     */
+    public static boolean crc4(int value, int crc)
+    {
+        long checksum = (value & 0x0FFFFFFFFl) << 4;
+        checksum ^= 0xF; //Initial fill
+        long polynomial = 0x013l << 31;
+        long checkBit = 0x1l << 35;
+
+        for(int x = 31; x >= 0; x--)
+        {
+            if((checksum & checkBit) == checkBit)
+            {
+                checksum ^= polynomial;
+            }
+            polynomial >>= 1;
+            checkBit >>= 1;
+        }
+
+        return (int)checksum == crc;
+    }
+}

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/embedded/Arc4EncryptionParameters.java

@@ -0,0 +1,80 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message.voice.embedded;
+
+import io.github.dsheirer.bits.CorrectedBinaryMessage;
+
+/**
+ * Encryption parameters short burst payload.
+ */
+public class Arc4EncryptionParameters extends ShortBurst
+{
+    private static final int[] KEY = new int[]{0, 1, 2, 3, 4, 5, 6, 7};
+    private static final int[] ALGORITHM = new int[]{8, 9, 10};
+
+    /**
+     * Constructor
+     *
+     * @param message containing the de-interleaved and error-corrected short burst payload.
+     */
+    public Arc4EncryptionParameters(CorrectedBinaryMessage message)
+    {
+        super(message);
+    }
+
+    /**
+     * Encryption key ID
+     * @return key ID
+     */
+    public int getKey()
+    {
+        return getMessage().getInt(KEY);
+    }
+
+    /**
+     * Encryption algorithm
+     * @return algorithm (0 - 7).  1 = ARC4
+     */
+    public int getAlgorithmValue()
+    {
+        return getMessage().getInt(ALGORITHM);
+    }
+
+    public String getAlgorithm()
+    {
+        int algorithm = getAlgorithmValue();
+
+        if(algorithm == 1)
+        {
+            return "EP/ARC4";
+        }
+
+        return "ALGORITHM:" + algorithm;
+    }
+
+    @Override
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("ENCRYPTION:").append(getAlgorithm());
+        sb.append(" KEY:").append(getKey());
+        return sb.toString();
+    }
+}

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/embedded/EmbeddedParameters.java

@@ -0,0 +1,90 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message.voice.embedded;
+
+/**
+ * Parameters that are embedded in a DMR voice super frame.
+ * @param algorithm identifier
+ * @param key identifier
+ * @param iv initialization vector
+ */
+public class EmbeddedParameters
+{
+    private ShortBurst mShortBurst;
+    private String mIv;
+
+    /**
+     * Constructor
+     * @param shortBurst payload
+     * @param iv initialization vector extracted from DMR voice super-frame
+     */
+    public EmbeddedParameters(ShortBurst shortBurst)
+    {
+        mShortBurst = shortBurst;
+    }
+
+    @Override
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append(getShortBurst());
+        if(hasIv())
+        {
+            sb.append(" IV:").append(getIv());
+        }
+        return sb.toString();
+    }
+
+    /**
+     * Short Burst payload message
+     * @return short burst
+     */
+    public ShortBurst getShortBurst()
+    {
+        return mShortBurst;
+    }
+
+    /**
+     * Optional initialization vector (IV) decoded from the voice super-frame
+     * @return iv
+     */
+    public String getIv()
+    {
+        return mIv;
+    }
+
+    /**
+     * Sets the optional IV value.
+     * @param iv to set
+     */
+    public void setIv(String iv)
+    {
+        mIv = iv;
+    }
+
+    /**
+     * Indicates if the optional IV is included.
+     * @return true if included
+     */
+    public boolean hasIv()
+    {
+        return mIv != null;
+    }
+}

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/embedded/NonStandardShortBurst.java

@@ -0,0 +1,44 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message.voice.embedded;
+
+import io.github.dsheirer.bits.CorrectedBinaryMessage;
+
+/**
+ * Short burst payload that doesn't pass the BPTC 16 fec check.
+ */
+public class NonStandardShortBurst extends ShortBurst
+{
+    /**
+     * Constructor
+     *
+     * @param message containing the delinterleaved and error-corrected short burst payload.
+     */
+    public NonStandardShortBurst(CorrectedBinaryMessage message)
+    {
+        super(message);
+    }
+
+    @Override
+    public String toString()
+    {
+        return "NON-STANDARD SHORT BURST:" + getMessage().toHexString();
+    }
+}

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/embedded/NullShortBurst.java

@@ -0,0 +1,45 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message.voice.embedded;
+
+import io.github.dsheirer.bits.CorrectedBinaryMessage;
+
+/**
+ * Null (empty) short burst
+ */
+public class NullShortBurst extends ShortBurst
+{
+    /**
+     * Constructor
+     *
+     * @param message containing the delinterleaved and error-corrected short burst payload.
+     */
+    public NullShortBurst(CorrectedBinaryMessage message)
+    {
+        super(message);
+        setValid(passesCRC3());
+    }
+
+    @Override
+    public String toString()
+    {
+        return "NULL SHORT BURST";
+    }
+}

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/embedded/ShortBurst.java

@@ -0,0 +1,134 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message.voice.embedded;
+
+import io.github.dsheirer.bits.BinaryMessage;
+import io.github.dsheirer.bits.CorrectedBinaryMessage;
+
+/**
+ * Base class for DMR Voice Frame F Short Burst from the EMB payload.
+ */
+public abstract class ShortBurst
+{
+    private static final int[] CRC3 = new int[]{0, 1, 2};
+    private static final int[] OPCODE = new int[]{8, 9, 10};
+    private static final int[] FULL_MESSAGE = new int[]{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+
+    private CorrectedBinaryMessage mMessage;
+    private boolean mValid = true;
+
+    /**
+     * Constructor
+     *
+     * @param message containing the delinterleaved and error-corrected short burst payload.
+     */
+    public ShortBurst(CorrectedBinaryMessage message)
+    {
+        mMessage = message;
+    }
+
+    /**
+     * Access the underlying message.
+     *
+     * @return message
+     */
+    public CorrectedBinaryMessage getMessage()
+    {
+        return mMessage;
+    }
+
+    /**
+     * Indicates if this message passes any CRC checks.
+     * @return
+     */
+    public boolean isValid()
+    {
+        return mValid;
+    }
+
+    /**
+     * Sets the valid CRC flag for this message
+     * @param valid true or false
+     */
+    protected void setValid(boolean valid)
+    {
+        mValid = valid;
+    }
+
+    /**
+     * Numeric opcode value.
+     *
+     * @return value.
+     */
+    public int getOpcodeValue()
+    {
+        return getMessage().getInt(OPCODE);
+    }
+
+    /**
+     * Opcode for this message.
+     *
+     * @return opcode
+     */
+    public ShortBurstOpcode getOpcode()
+    {
+        return getOpcode(getMessage());
+    }
+
+    /**
+     * Static utility method to lookup the opcode from a short burst message.
+     *
+     * @param message containing a short burst
+     * @return opcode
+     */
+    public static ShortBurstOpcode getOpcode(BinaryMessage message)
+    {
+        return ShortBurstOpcode.fromValue(message.getInt(OPCODE));
+    }
+
+    /**
+     * Checks the message to determine if it passes for a CRC3.  Not all Short Burst messages use the CRC3 check.
+     *
+     * @return true if it passes.
+     */
+    public boolean passesCRC3()
+    {
+        int checksum = getMessage().getInt(FULL_MESSAGE);
+        int polynomial = 0xB << 7;
+        int checkBit = 0x1 << 10;
+
+        for(int x = 10; x >= 0; x--)
+        {
+            if(checksum == 0)
+            {
+                return true;
+            }
+
+            if((checksum & checkBit) == checkBit)
+            {
+                checksum ^= polynomial;
+            }
+            polynomial >>= 1;
+            checkBit >>= 1;
+        }
+
+        return checksum == 0;
+    }
+}

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/embedded/ShortBurstOpcode.java

@@ -0,0 +1,71 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message.voice.embedded;
+
+/**
+ * Short Burst opcode
+ *
+ * See: https://patents.google.com/patent/US8271009B2 Page 12
+ */
+public enum ShortBurstOpcode
+{
+    NULL(0),
+    ARC4_ENCRYPTION(1),
+    TXI_DELAY(3),
+    UNKNOWN(-1);
+
+    private int mValue;
+
+    /**
+     * Constructor
+     * @param value of the opcode
+     */
+    ShortBurstOpcode(int value)
+    {
+        mValue = value;
+    }
+
+    /**
+     * Numeric value for the opcode
+     * @return value.
+     */
+    private int getValue()
+    {
+        return mValue;
+    }
+
+    /**
+     * Lookup the enum entry from the specified value.
+     * @param value to lookup
+     * @return matching entry or UNKNOWN.
+     */
+    public static ShortBurstOpcode fromValue(int value)
+    {
+        for(ShortBurstOpcode opcode: ShortBurstOpcode.values())
+        {
+            if(opcode.getValue() == value)
+            {
+                return opcode;
+            }
+        }
+
+        return UNKNOWN;
+    }
+}

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/embedded/TransmitInterrupt.java

@@ -0,0 +1,74 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message.voice.embedded;
+
+import io.github.dsheirer.bits.CorrectedBinaryMessage;
+
+/**
+ * Transmit Interrupt short burst
+ * <p>
+ * See: https://patents.google.com/patent/US8271009B2
+ */
+public class TransmitInterrupt extends ShortBurst
+{
+    private static final int[] DELAY = new int[]{3, 4, 5, 6, 7};
+
+    /**
+     * Constructor
+     *
+     * @param message containing the delinterleaved and error-corrected short burst payload.
+     */
+    public TransmitInterrupt(CorrectedBinaryMessage message)
+    {
+        super(message);
+        setValid(passesCRC3());
+    }
+
+    @Override
+    public String toString()
+    {
+        return "TRANSMIT INTERRUPT (TXI) AT " + getDelay();
+    }
+
+    /**
+     * Delay to when another radio can interrupt the current call.
+     * @return delay string.
+     */
+    public String getDelay()
+    {
+        int value = getMessage().getInt(DELAY);
+
+        switch(value)
+        {
+            case 0:
+                return "ANY TIME";
+            case 2:
+                return "FRAME E";
+            case 4:
+                return "FRAME D";
+            case 6:
+                return "FRAME C";
+            case 8:
+                return "FRAME B";
+            default:
+                return "UNKNOWN(" + value + ")";
+        }
+    }
+}

src/main/java/io/github/dsheirer/module/decode/dmr/message/voice/embedded/UnknownShortBurst.java

@@ -0,0 +1,44 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.dmr.message.voice.embedded;
+
+import io.github.dsheirer.bits.CorrectedBinaryMessage;
+
+/**
+ * Unknown or garbage short burst
+ */
+public class UnknownShortBurst extends ShortBurst
+{
+    /**
+     * Constructor
+     *
+     * @param message containing the delinterleaved and error-corrected short burst payload.
+     */
+    public UnknownShortBurst(CorrectedBinaryMessage message)
+    {
+        super(message);
+    }
+
+    @Override
+    public String toString()
+    {
+        return "UNKNOWN SHORT BURST:" + getMessage().toHexString();
+    }
+}

src/main/java/io/github/dsheirer/module/decode/ip/DefinedShortDataPacket.java

@@ -0,0 +1,98 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2014-2023 Dennis Sheirer
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ * ****************************************************************************
+ */
+
+package io.github.dsheirer.module.decode.ip;
+
+import io.github.dsheirer.bits.BinaryMessage;
+import io.github.dsheirer.identifier.Identifier;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * Defined Short Data Packet
+ */
+public class DefinedShortDataPacket implements IPacket
+{
+    private BinaryMessage mMessage;
+    private int mOffset;
+
+    /**
+     * Constructor
+     * @param message of the complete packet
+     * @param offset into the message
+     */
+    public DefinedShortDataPacket(BinaryMessage message, int offset)
+    {
+        mMessage = message;
+        mOffset = offset;
+    }
+
+    @Override
+    public String toString()
+    {
+        StringBuilder sb = new StringBuilder();
+
+        sb.append("DEFINED SHORT DATA PACKET:");
+
+        if(getMessage().size() > getOffset())
+        {
+            sb.append(mMessage.getSubMessage(getOffset(), getMessage().size()).toHexString());
+        }
+        else
+        {
+            sb.append("(EMPTY)");
+        }
+
+        return sb.toString();
+    }
+
+    public BinaryMessage getMessage()
+    {
+        return mMessage;
+    }
+
+    public int getOffset()
+    {
+        return mOffset;
+    }
+
+    @Override
+    public IHeader getHeader()
+    {
+        return null;
+    }
+
+    @Override
+    public IPacket getPayload()
+    {
+        return null;
+    }
+
+    @Override
+    public boolean hasPayload()
+    {
+        return false;
+    }
+
+    @Override
+    public List<Identifier> getIdentifiers()
+    {
+        return Collections.emptyList();
+    }
+}