diff --git a/Defines.h b/Defines.h
index 3d2240b3..a8484764 100644
--- a/Defines.h
+++ b/Defines.h
@@ -118,6 +118,8 @@ typedef unsigned long long  ulong64_t;
 const uint32_t  TRAFFIC_DEFAULT_PORT = 62031;
 const uint32_t  RCON_DEFAULT_PORT = 9990;
 
+const uint32_t  QUEUE_RESIZE_SIZE = 500;
+
 const uint8_t   BIT_MASK_TABLE[] = { 0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U };
 
 enum HOST_STATE {
diff --git a/config.yml b/config.yml
index 69be2ef5..66bf89b1 100644
--- a/config.yml
+++ b/config.yml
@@ -109,6 +109,7 @@ system:
 #        dmrTxLevel: 50
 #        p25TxLevel: 50
         rssiMappingFile: RSSI.dat
+        packetPlayoutTime: 10
         disableOFlowReset: false
         trace: false
         debug: false
diff --git a/dmr/Slot.cpp b/dmr/Slot.cpp
index 0506a793..d108562a 100644
--- a/dmr/Slot.cpp
+++ b/dmr/Slot.cpp
@@ -449,7 +449,7 @@ void Slot::writeQueueRF(const uint8_t *data)
     uint32_t space = m_queue.freeSpace();
     if (space < (len + 1U)) {
         uint32_t queueLen = m_queue.length();
-        m_queue.resize(queueLen + 2500);
+        m_queue.resize(queueLen + QUEUE_RESIZE_SIZE);
 
         LogError(LOG_DMR, "Slot %u, overflow in the DMR slot RF queue; queue resized was %u is %u", m_slotNo, queueLen, m_queue.length());
         return;
diff --git a/host/Host.cpp b/host/Host.cpp
index ebc1007a..648e75a2 100644
--- a/host/Host.cpp
+++ b/host/Host.cpp
@@ -1209,10 +1209,15 @@ bool Host::createModem()
     if (!modemConf["txLevel"].isNone()) {
         cwIdTXLevel = dmrTXLevel = p25TXLevel = modemConf["txLevel"].as<float>(50.0F);
     }
+    uint8_t packetPlayoutTime = (uint8_t)modemConf["packetPlayoutTime"].as<uint32_t>(10U);
     bool disableOFlowReset = modemConf["disableOFlowReset"].as<bool>(false);
     bool trace = modemConf["trace"].as<bool>(false);
     bool debug = modemConf["debug"].as<bool>(false);
 
+    // make sure playout time is always greater than 1ms
+    if (packetPlayoutTime < 1U)
+        packetPlayoutTime = 1U;
+
     LogInfo("Modem Parameters");
     LogInfo("    Port: %s", port.c_str());
     LogInfo("    RX Invert: %s", rxInvert ? "yes" : "no");
@@ -1228,13 +1233,14 @@ bool Host::createModem()
     LogInfo("    CW Id TX Level: %.1f%%", cwIdTXLevel);
     LogInfo("    DMR TX Level: %.1f%%", dmrTXLevel);
     LogInfo("    P25 TX Level: %.1f%%", p25TXLevel);
+    LogInfo("    Packet Playout Time: %u ms", packetPlayoutTime);
     LogInfo("    Disable Overflow Reset: %s", disableOFlowReset ? "yes" : "no");
 
     if (debug) {
         LogInfo("    Debug: yes");
     }
 
-    m_modem = Modem::createModem(port, m_duplex, rxInvert, txInvert, pttInvert, dcBlocker, cosLockout, fdmaPreamble, dmrRxDelay, disableOFlowReset, trace, debug);
+    m_modem = Modem::createModem(port, m_duplex, rxInvert, txInvert, pttInvert, dcBlocker, cosLockout, fdmaPreamble, dmrRxDelay, packetPlayoutTime, disableOFlowReset, trace, debug);
     m_modem->setModeParams(m_dmrEnabled, m_p25Enabled);
     m_modem->setLevels(rxLevel, cwIdTXLevel, dmrTXLevel, p25TXLevel);
     m_modem->setDCOffsetParams(txDCOffset, rxDCOffset);
diff --git a/modem/Modem.cpp b/modem/Modem.cpp
index e634e9bb..77632e70 100644
--- a/modem/Modem.cpp
+++ b/modem/Modem.cpp
@@ -67,10 +67,11 @@ using namespace modem;
 /// <param name="fdmaPreamble">Count of FDMA preambles to transmit before data. (P25/DMR DMO)</param>
 /// <param name="dmrRxDelay">Compensate for delay in receiver audio chain in ms. Usually DSP based.</param>
 /// <param name="disableOFlowReset">Flag indicating whether the ADC/DAC overflow reset logic is disabled.</param>
+/// <param name="packetPlayoutTime">Length of time in MS between packets to send to modem.</param>
 /// <param name="trace">Flag indicating whether modem DSP trace is enabled.</param>
 /// <param name="debug">Flag indicating whether modem DSP debug is enabled.</param>
 Modem::Modem(const std::string& port, bool duplex, bool rxInvert, bool txInvert, bool pttInvert, bool dcBlocker,
-    bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, bool disableOFlowReset, bool trace, bool debug) :
+    bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, uint8_t packetPlayoutTime, bool disableOFlowReset, bool trace, bool debug) :
     m_port(port),
     m_dmrColorCode(0U),
     m_duplex(duplex),
@@ -106,7 +107,7 @@ Modem::Modem(const std::string& port, bool duplex, bool rxInvert, bool txInvert,
     m_txP25Data(1000U, "Modem TX P25"),
     m_statusTimer(1000U, 0U, 250U),
     m_inactivityTimer(1000U, 4U),
-    m_playoutTimer(1000U, 0U, 10U),
+    m_playoutTimer(1000U, 0U, packetPlayoutTime),
     m_dmrSpace1(0U),
     m_dmrSpace2(0U),
     m_p25Space(0U),
@@ -1030,17 +1031,18 @@ bool Modem::sendCWId(const std::string& callsign)
 /// <param name="cosLockout">Flag indicating whether the COS signal should be used to lockout the modem.</param>
 /// <param name="fdmaPreamble">Count of FDMA preambles to transmit before data. (P25/DMR DMO)</param>
 /// <param name="dmrRxDelay">Compensate for delay in receiver audio chain in ms. Usually DSP based.</param>
+/// <param name="packetPlayoutTime">Length of time in MS between packets to send to modem.</param>
 /// <param name="disableOFlowReset">Flag indicating whether the ADC/DAC overflow reset logic is disabled.</param>
 /// <param name="trace">Flag indicating whether modem DSP trace is enabled.</param>
 /// <param name="debug">Flag indicating whether modem DSP debug is enabled.</param>
 Modem* Modem::createModem(const std::string& port, bool duplex, bool rxInvert, bool txInvert, bool pttInvert, bool dcBlocker,
-    bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, bool disableOFlowReset, bool trace, bool debug)
+    bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, uint8_t packetPlayoutTime, bool disableOFlowReset, bool trace, bool debug)
 {
     if (port == NULL_MODEM) {
-        return new NullModem(port, duplex, rxInvert, txInvert, pttInvert, dcBlocker, cosLockout, fdmaPreamble, dmrRxDelay, disableOFlowReset, trace, debug);
+        return new NullModem(port, duplex, rxInvert, txInvert, pttInvert, dcBlocker, cosLockout, fdmaPreamble, dmrRxDelay, packetPlayoutTime, disableOFlowReset, trace, debug);
     }
     else {
-        return new Modem(port, duplex, rxInvert, txInvert, pttInvert, dcBlocker, cosLockout, fdmaPreamble, dmrRxDelay, disableOFlowReset, trace, debug);
+        return new Modem(port, duplex, rxInvert, txInvert, pttInvert, dcBlocker, cosLockout, fdmaPreamble, dmrRxDelay, packetPlayoutTime, disableOFlowReset, trace, debug);
     }
 }
 
diff --git a/modem/Modem.h b/modem/Modem.h
index a15f9230..6317a750 100644
--- a/modem/Modem.h
+++ b/modem/Modem.h
@@ -163,7 +163,7 @@ namespace modem
     public:
         /// <summary>Initializes a new instance of the Modem class.</summary>
         Modem(const std::string& port, bool duplex, bool rxInvert, bool txInvert, bool pttInvert, bool dcBlocker,
-            bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, bool disableOFlowReset, bool trace, bool debug);
+            bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, uint8_t packetPlayoutTime, bool disableOFlowReset, bool trace, bool debug);
         /// <summary>Finalizes a instance of the Modem class.</summary>
         virtual ~Modem();
 
@@ -247,7 +247,7 @@ namespace modem
 
         /// <summary>Helper to create an instance of the Modem class.</summary>
         static Modem* createModem(const std::string& port, bool duplex, bool rxInvert, bool txInvert, bool pttInvert, bool dcBlocker,
-            bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, bool disableOFlowReset, bool trace, bool debug);
+            bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, uint8_t packetPlayoutTime, bool disableOFlowReset, bool trace, bool debug);
 
     private:
         std::string m_port;
diff --git a/modem/NullModem.cpp b/modem/NullModem.cpp
index 000a2723..4d5efe63 100644
--- a/modem/NullModem.cpp
+++ b/modem/NullModem.cpp
@@ -49,12 +49,13 @@ using namespace modem;
 /// <param name="cosLockout">Flag indicating whether the COS signal should be used to lockout the modem.</param>
 /// <param name="fdmaPreamble">Count of FDMA preambles to transmit before data. (P25/DMR DMO)</param>
 /// <param name="dmrRxDelay">Compensate for delay in receiver audio chain in ms. Usually DSP based.</param>
+/// <param name="packetPlayoutTime">Length of time in MS between packets to send to modem.</param>
 /// <param name="disableOFlowReset">Flag indicating whether the ADC/DAC overflow reset logic is disabled.</param>
 /// <param name="trace">Flag indicating whether modem DSP trace is enabled.</param>
 /// <param name="debug">Flag indicating whether modem DSP debug is enabled.</param>
 NullModem::NullModem(const std::string& port, bool duplex, bool rxInvert, bool txInvert, bool pttInvert, bool dcBlocker,
-    bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, bool disableOFlowReset, bool trace, bool debug) :
-    Modem(port, duplex, rxInvert, txInvert, pttInvert, dcBlocker, cosLockout, fdmaPreamble, dmrRxDelay, disableOFlowReset, trace, debug)
+    bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, uint8_t packetPlayoutTime, bool disableOFlowReset, bool trace, bool debug) :
+    Modem(port, duplex, rxInvert, txInvert, pttInvert, dcBlocker, cosLockout, fdmaPreamble, dmrRxDelay, packetPlayoutTime, disableOFlowReset, trace, debug)
 {
     /* stub */
 }
diff --git a/modem/NullModem.h b/modem/NullModem.h
index 405c8026..960b187b 100644
--- a/modem/NullModem.h
+++ b/modem/NullModem.h
@@ -45,7 +45,7 @@ namespace modem
     public:
         /// <summary>Initializes a new instance of the NullModem class.</summary>
         NullModem(const std::string& port, bool duplex, bool rxInvert, bool txInvert, bool pttInvert, bool dcBlocker,
-            bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, bool disableOFlowReset, bool trace, bool debug);
+            bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, uint8_t packetPlayoutTime, bool disableOFlowReset, bool trace, bool debug);
         /// <summary>Finalizes a instance of the NullModem class.</summary>
         ~NullModem();
 
diff --git a/p25/Control.cpp b/p25/Control.cpp
index 74dae48f..0d5b7079 100644
--- a/p25/Control.cpp
+++ b/p25/Control.cpp
@@ -330,16 +330,16 @@ bool Control::processFrame(uint8_t* data, uint32_t len)
     }
 
     if (!sync && m_rfState == RS_RF_LISTENING) {
-        if (m_verbose) {
-            uint8_t sync[P25_SYNC_LENGTH_BYTES];
-            ::memcpy(sync, data + 2U, P25_SYNC_LENGTH_BYTES);
+        uint8_t sync[P25_SYNC_LENGTH_BYTES];
+        ::memcpy(sync, data + 2U, P25_SYNC_LENGTH_BYTES);
 
-            uint8_t errs = 0U;
-            for (uint8_t i = 0U; i < P25_SYNC_LENGTH_BYTES; i++)
-                errs += Utils::countBits8(sync[i] ^ P25_SYNC_BYTES[i]);
+        uint8_t errs = 0U;
+        for (uint8_t i = 0U; i < P25_SYNC_LENGTH_BYTES; i++)
+            errs += Utils::countBits8(sync[i] ^ P25_SYNC_BYTES[i]);
+
+        LogWarning(LOG_RF, "P25, possible sync word rejected, errs = %u, sync word = %02X %02X %02X %02X %02X %02X", errs,
+            sync[0U], sync[1U], sync[2U], sync[3U], sync[4U], sync[5U]);
 
-            LogDebug(LOG_RF, "P25, possible sync word rejected, errs = %u", errs);
-        }
         return false;
     }
 
@@ -626,7 +626,7 @@ void Control::writeQueueRF(const uint8_t* data, uint32_t length)
     uint32_t space = m_queue.freeSpace();
     if (space < (length + 1U)) {
         uint32_t queueLen = m_queue.length();
-        m_queue.resize(queueLen + 2500);
+        m_queue.resize(queueLen + QUEUE_RESIZE_SIZE);
 
         LogError(LOG_P25, "overflow in the P25 RF queue; queue resized was %u is %u", queueLen, m_queue.length());
         return;
diff --git a/p25/VoicePacket.cpp b/p25/VoicePacket.cpp
index 50978022..60470fe1 100644
--- a/p25/VoicePacket.cpp
+++ b/p25/VoicePacket.cpp
@@ -115,13 +115,17 @@ bool VoicePacket::process(uint8_t* data, uint32_t len)
         m_p25->m_rfTGHang.start();
     }
 
+    if (duid == P25_DUID_HDU && m_lastDUID == P25_DUID_HDU) {
+        duid = P25_DUID_LDU1;
+    }
+
     // handle individual DUIDs
     if (duid == P25_DUID_HDU) {
         m_p25->m_trunk->resetStatusCommand();
 
         m_lastDUID = P25_DUID_HDU;
 
-        if (m_p25->m_rfState == RS_RF_LISTENING) {
+        if (m_p25->m_rfState == RS_RF_LISTENING && m_p25->m_ccRunning) {
             m_p25->m_modem->clearP25Data();
             m_p25->m_queue.clear();
             resetRF();