diff --git a/Conf.cpp b/Conf.cpp
index 32387c4..eaf7263 100644
--- a/Conf.cpp
+++ b/Conf.cpp
@@ -183,7 +183,8 @@ m_fmCallsignHighLevel(80.0F),
 m_fmCallsignLowLevel(40.0F),
 m_fmCallsignAtStart(true),
 m_fmCallsignAtEnd(true),
-m_fmAck("K"),
+m_fmRFAck("K"),
+m_fmNetAck("N"),
 m_fmAckSpeed(20U),
 m_fmAckFrequency(1750U),
 m_fmAckDelay(1000U),
@@ -712,12 +713,17 @@ bool CConf::read()
 		  m_fmCallsignAtStart = ::atoi(value) == 1;
 	  else if (::strcmp(key, "CallsignAtEnd") == 0)
 		  m_fmCallsignAtEnd = ::atoi(value) == 1;
-	  else if (::strcmp(key, "Ack") == 0) {
-		  // Convert the ack to upper case
-		  for (unsigned int i = 0U; value[i] != 0; i++)
-			  value[i] = ::toupper(value[i]);
-		  m_fmAck = value;
-	  }	else if (::strcmp(key, "AckSpeed") == 0)
+	  else if (::strcmp(key, "RFAck") == 0) {
+			// Convert the ack to upper case
+			for (unsigned int i = 0U; value[i] != 0; i++)
+				value[i] = ::toupper(value[i]);
+			m_fmRFAck = value;
+	  } else if (::strcmp(key, "NetAck") == 0) {
+			// Convert the ack to upper case
+			for (unsigned int i = 0U; value[i] != 0; i++)
+				value[i] = ::toupper(value[i]);
+			m_fmNetAck = value;
+		}	else if (::strcmp(key, "AckSpeed") == 0)
 			m_fmAckSpeed = (unsigned int)::atoi(value);
 		else if (::strcmp(key, "AckFrequency") == 0)
 			m_fmAckFrequency = (unsigned int)::atoi(value);
@@ -1529,9 +1535,14 @@ bool CConf::getFMCallsignAtEnd() const
 	return m_fmCallsignAtEnd;
 }
 
-std::string CConf::getFMAck() const
+std::string CConf::getFMRFAck() const
 {
-	return m_fmAck;
+	return m_fmRFAck;
+}
+
+std::string CConf::getFMNetAck() const
+{
+	return m_fmNetAck;
 }
 
 unsigned int CConf::getFMAckSpeed() const
diff --git a/Conf.h b/Conf.h
index b8817f7..2460cb9 100644
--- a/Conf.h
+++ b/Conf.h
@@ -181,7 +181,8 @@ public:
   float        getFMCallsignLowLevel() const;
   bool         getFMCallsignAtStart() const;
   bool         getFMCallsignAtEnd() const;
-  std::string  getFMAck() const;
+  std::string  getFMRFAck() const;
+  std::string  getFMNetAck() const;
   unsigned int getFMAckSpeed() const;
   unsigned int getFMAckFrequency() const;
   unsigned int getFMAckDelay() const;
@@ -440,7 +441,8 @@ private:
   float        m_fmCallsignLowLevel;
   bool         m_fmCallsignAtStart;
   bool         m_fmCallsignAtEnd;
-  std::string  m_fmAck;
+  std::string  m_fmRFAck;
+  std::string  m_fmNetAck;
   unsigned int m_fmAckSpeed;
   unsigned int m_fmAckFrequency;
   unsigned int m_fmAckDelay;
diff --git a/MMDVM.ini b/MMDVM.ini
index d7c7aa0..f7c73bc 100644
--- a/MMDVM.ini
+++ b/MMDVM.ini
@@ -151,7 +151,8 @@ CallsignHighLevel=80
 CallsignLowLevel=40
 CallsignAtStart=1
 CallsignAtEnd=1
-Ack=K
+RFAck=K
+NetAck=N
 AckSpeed=20
 AckFrequency=1750
 AckDelay=1000
diff --git a/MMDVMHost.cpp b/MMDVMHost.cpp
index 0ea37be..9693309 100644
--- a/MMDVMHost.cpp
+++ b/MMDVMHost.cpp
@@ -616,7 +616,8 @@ int CMMDVMHost::run()
 		float        callsignLowLevel  = m_conf.getFMCallsignLowLevel();
 		bool         callsignAtStart   = m_conf.getFMCallsignAtStart();
 		bool         callsignAtEnd     = m_conf.getFMCallsignAtEnd();
-		std::string  ack               = m_conf.getFMCallsign();
+		std::string  rfAck             = m_conf.getFMRFAck();
+		std::string  netAck            = m_conf.getFMNetAck();
 		unsigned int ackSpeed          = m_conf.getFMAckSpeed();
 		unsigned int ackFrequency      = m_conf.getFMAckFrequency();
 		unsigned int ackDelay          = m_conf.getFMAckDelay();
@@ -639,7 +640,8 @@ int CMMDVMHost::run()
 		LogInfo("    Callsign Low Level: %.1f%%", callsignLowLevel);
 		LogInfo("    Callsign At Start: %s", callsignAtStart ? "yes" : "no");
 		LogInfo("    Callsign At End: %s", callsignAtEnd ? "yes" : "no");
-		LogInfo("    Ack: %s", ack.c_str());
+		LogInfo("    RF Ack: %s", rfAck.c_str());
+		LogInfo("    Net Ack: %s", netAck.c_str());
 		LogInfo("    Ack Speed: %uWPM", ackSpeed);
 		LogInfo("    Ack Frequency: %uHz", ackFrequency);
 		LogInfo("    Ack Delay: %ums", ackDelay);
@@ -653,7 +655,7 @@ int CMMDVMHost::run()
 		LogInfo("    Hang Time: %us", hangTime);
 
 		m_modem->setFMCallsignParams(callsign, callsignSpeed, callsignFrequency, callsignTime, callsignHoldoff, callsignHighLevel, callsignLowLevel, callsignAtStart, callsignAtEnd);
-		m_modem->setFMAckParams(ack, ackSpeed, ackFrequency, ackDelay, ackLevel);
+		m_modem->setFMAckParams(rfAck, ackSpeed, ackFrequency, ackDelay, ackLevel);
 		m_modem->setFMMiscParams(timeout, timeoutLevel, ctcssFrequency, ctcssThreshold, ctcssLevel, kerchunkTime, hangTime);
 	}