diff --git a/DMR2YSF/Conf.cpp b/DMR2YSF/Conf.cpp
index 03846d6..61f034d 100644
--- a/DMR2YSF/Conf.cpp
+++ b/DMR2YSF/Conf.cpp
@@ -49,6 +49,8 @@ m_dmrRptPort(0U),
 m_dmrLocalAddress(),
 m_dmrLocalPort(0U),
 m_dmrDefaultDstTG(9U),
+m_dmrNetworkTGUnlink(4000U),
+m_dmrTGListFile(),
 m_dmrDebug(false),
 m_dmrIdLookupFile(),
 m_dmrIdLookupTime(0U),
@@ -137,6 +139,10 @@ bool CConf::read()
 			m_dmrLocalPort = (unsigned int)::atoi(value);
 		else if (::strcmp(key, "DefaultDstTG") == 0)
 			m_dmrDefaultDstTG = (unsigned int)::atoi(value);
+		else if (::strcmp(key, "TGUnlink") == 0)
+			m_dmrNetworkTGUnlink = (unsigned int)::atoi(value);
+		else if (::strcmp(key, "TGListFile") == 0)
+			m_dmrTGListFile = value;
 		else if (::strcmp(key, "Debug") == 0)
 			m_dmrDebug = ::atoi(value) == 1;
 	} else if (section == SECTION_DMRID_LOOKUP) {
@@ -221,6 +227,16 @@ unsigned int CConf::getDMRDefaultDstTG() const
 	return m_dmrDefaultDstTG;
 }
 
+unsigned int CConf::getDMRNetworkTGUnlink() const
+{
+	return m_dmrNetworkTGUnlink;
+}
+
+std::string CConf::getDMRTGListFile() const
+{
+	return m_dmrTGListFile;
+}
+
 bool CConf::getDMRDebug() const
 {
 	return m_dmrDebug;
diff --git a/DMR2YSF/Conf.h b/DMR2YSF/Conf.h
index 291e111..4baa0f6 100644
--- a/DMR2YSF/Conf.h
+++ b/DMR2YSF/Conf.h
@@ -46,6 +46,8 @@ public:
   std::string  getDMRLocalAddress() const;
   unsigned int getDMRLocalPort() const;
   unsigned int getDMRDefaultDstTG() const;
+  unsigned int getDMRNetworkTGUnlink() const;
+  std::string  getDMRTGListFile() const;
   bool         getDMRDebug() const;
 
   // The DMR Id section
@@ -73,6 +75,8 @@ private:
   std::string  m_dmrLocalAddress;
   unsigned int m_dmrLocalPort;
   unsigned int m_dmrDefaultDstTG;
+  unsigned int m_dmrNetworkTGUnlink;
+  std::string  m_dmrTGListFile;
   bool         m_dmrDebug;
 
   std::string  m_dmrIdLookupFile;
diff --git a/DMR2YSF/DMR2YSF.cpp b/DMR2YSF/DMR2YSF.cpp
index d3c6dbb..2ddb4ef 100644
--- a/DMR2YSF/DMR2YSF.cpp
+++ b/DMR2YSF/DMR2YSF.cpp
@@ -108,7 +108,11 @@ m_dmrFrames(0U),
 m_ysfFrames(0U),
 m_dmrinfo(false),
 m_config(NULL),
-m_configLen(0U)
+m_configLen(0U),
+m_command(),
+m_tgUnlink(4000U),
+m_currTGList(),
+m_lastTG(0U)
 {
 	m_ysfFrame = new unsigned char[200U];
 	m_dmrFrame = new unsigned char[50U];
@@ -215,6 +219,15 @@ int CDMR2YSF::run()
 	m_callsign = m_conf.getCallsign();
 	m_defsrcid = m_conf.getDMRId();
 	m_dstid = m_conf.getDMRDefaultDstTG();
+	m_tgUnlink = m_conf.getDMRNetworkTGUnlink();
+	std::string tgFile = m_conf.getDMRTGListFile();
+
+	LogInfo("General Parameters");
+	LogInfo("    Default Dst TG: %u", m_dstid);
+	LogInfo("    Unlink TG: %u", m_tgUnlink);
+	LogInfo("    TG File: %s", tgFile.c_str());
+
+	readTGList(tgFile);
 
 	in_addr dstAddress       = CUDPSocket::lookup(m_conf.getDstAddress());
 	unsigned int dstPort     = m_conf.getDstPort();
@@ -524,6 +537,7 @@ int CDMR2YSF::run()
 					m_netDst.resize(YSF_CALLSIGN_LENGTH, ' ');
 					
 					m_dmrFrames = 0U;
+					connectYSF(m_dstid);
 				}
 
 				if(DataType == DT_VOICE_SYNC || DataType == DT_VOICE) {
@@ -542,6 +556,8 @@ int CDMR2YSF::run()
 						m_netSrc.resize(YSF_CALLSIGN_LENGTH, ' ');
 						m_netDst.resize(YSF_CALLSIGN_LENGTH, ' ');
 
+						connectYSF(m_dstid);
+
 						m_dmrinfo = true;
 					}
 
@@ -726,6 +742,33 @@ int CDMR2YSF::run()
 	return 0;
 }
 
+void CDMR2YSF::readTGList(std::string filename)
+{
+	// Load file with TG List
+	FILE* fp = ::fopen(filename.c_str(), "rt");
+	if (fp != NULL) {
+		char buffer[100U];
+		while (::fgets(buffer, 100U, fp) != NULL) {
+			if (buffer[0U] == '#')
+				continue;
+
+			char* p1 = ::strtok(buffer, ";\r\n");
+			char* p2 = ::strtok(NULL, ";\r\n");
+
+			if (p1 != NULL && p2 != NULL) {
+				CTGReg* tgreg = new CTGReg;
+
+				tgreg->m_tg = atoi(p1);
+				tgreg->m_ysf = atoi(p2);
+
+				m_currTGList.push_back(tgreg);
+			}
+		}
+
+		::fclose(fp);
+	}
+}
+
 unsigned int CDMR2YSF::findYSFID(std::string cs, bool showdst)
 {
 	std::string cstrim;
@@ -784,6 +827,17 @@ std::string CDMR2YSF::getSrcYSF(const unsigned char* buffer)
 	return trimmed;
 }
 
+void CDMR2YSF::connectYSF(unsigned int id)
+{
+	if (id == m_lastTG)
+		return;
+
+	if (id == m_tgUnlink)
+		sendYSFDisc();
+
+	// TODO: connection ID search
+}
+
 void CDMR2YSF::sendYSFConn(unsigned int id)
 {
 	unsigned char data[] = {0x00U, 0x5DU, 0x23U, 0x5FU, 0x24U, 0x20U, 0x20U, 0x20U, 0x20U,
@@ -907,6 +961,7 @@ void CDMR2YSF::processWiresX(const unsigned char* data, unsigned char fi, unsign
 			return;
 
 		if (::memcmp(m_command + 1U, CONN_RESP, 4U) == 0) {
+			m_lastTG = m_dstid;
 			LogMessage("Reflector connected OK");
 			return;
 		}
diff --git a/DMR2YSF/DMR2YSF.h b/DMR2YSF/DMR2YSF.h
index c5b20c0..7724a88 100644
--- a/DMR2YSF/DMR2YSF.h
+++ b/DMR2YSF/DMR2YSF.h
@@ -44,6 +44,18 @@
 
 #include <string>
 
+class CTGReg {
+public:
+	CTGReg() :
+	m_tg(),
+	m_ysf()
+	{
+	}
+
+	unsigned int m_tg;
+	unsigned int m_ysf;
+};
+
 class CDMR2YSF
 {
 public:
@@ -78,9 +90,14 @@ private:
 	unsigned char*   m_config;
 	unsigned int     m_configLen;
 	unsigned char*   m_command;
+	unsigned int     m_tgUnlink;
+	std::vector<CTGReg*> m_currTGList;
+	unsigned int     m_lastTG;
 
+	void readTGList(std::string filename);
 	unsigned int findYSFID(std::string cs, bool showdst);
 	std::string getSrcYSF(const unsigned char* source);
+	void connectYSF(unsigned int id);
 	void sendYSFConn(unsigned int id);
 	void sendYSFDisc();
 	void processWiresX(const unsigned char* data, unsigned char fi, unsigned char dt, unsigned char fn, unsigned char ft);
diff --git a/DMR2YSF/DMR2YSF.ini b/DMR2YSF/DMR2YSF.ini
index a8dc6b3..4c99a34 100644
--- a/DMR2YSF/DMR2YSF.ini
+++ b/DMR2YSF/DMR2YSF.ini
@@ -13,6 +13,8 @@ RptPort=62032
 LocalAddress=127.0.0.1
 LocalPort=62031
 DefaultDstTG=9
+TGUnlink=4000
+TGListFile=TG-YSFList.txt
 Debug=0
 
 [DMR Id Lookup]
diff --git a/DMR2YSF/TG-YSFList.txt b/DMR2YSF/TG-YSFList.txt
new file mode 100644
index 0000000..5f01035
--- /dev/null
+++ b/DMR2YSF/TG-YSFList.txt
@@ -0,0 +1,7 @@
+# This is just an example of DMR TG - YSF ID mapping
+#
+# DMR TG ID;YSF reflector ID
+#
+730;72350
+31010;2034
+7227;66099