diff --git a/DMRLookup.cpp b/DMRLookup.cpp
index 8fc67c3..b959950 100644
--- a/DMRLookup.cpp
+++ b/DMRLookup.cpp
@@ -30,7 +30,6 @@ CThread(),
 m_filename(filename),
 m_reloadTime(reloadTime),
 m_table(),
-m_mutex(),
 m_stop(false)
 {
 }
@@ -41,7 +40,7 @@ CDMRLookup::~CDMRLookup()
 
 bool CDMRLookup::read()
 {
-	bool ret = load();
+	bool ret = m_table.load(m_filename);
 
 	if (m_reloadTime > 0U)
 		run();
@@ -61,7 +60,7 @@ void CDMRLookup::entry()
 
 		timer.clock();
 		if (timer.hasExpired()) {
-			load();
+			m_table.load(m_filename);
 			timer.start();
 		}
 	}
@@ -81,118 +80,47 @@ void CDMRLookup::stop()
 	wait();
 }
 
-std::string CDMRLookup::findWithName(unsigned int id)
+void CDMRLookup::findWithName(unsigned int id, class CUserDBentry *entry)
 {
-	std::string callsign;
-
-	if (id == 0xFFFFFFU)
-		return std::string("ALL");
-
-	m_mutex.lock();
-
-	try {
-		callsign = m_table.at(id);
-		LogDebug("FindWithName =%s",callsign.c_str());
-		
-	} catch (...) {
-		char text[10U];
-		::sprintf(text, "%u", id);
-		callsign = std::string(text);
+	if (id == 0xFFFFFFU) {
+		entry->clear();
+		entry->set(keyCALLSIGN, "ALL");
+		return;
 	}
 
-	m_mutex.unlock();
+	if (m_table.lookup(id, entry)) {
+		LogDebug("FindWithName =%s %s", entry->get(keyCALLSIGN).c_str(), entry->get(keyFIRST_NAME).c_str());
+	} else {
+		entry->clear();
 
-	return callsign;
+		char text[10U];
+		::snprintf(text, sizeof(text), "%u", id);
+		entry->set(keyCALLSIGN, text);
+	}
+
+	return;
 }
+
 std::string CDMRLookup::find(unsigned int id)
 {
 	std::string callsign;
-	std::string b;
-	
-	
+
 	if (id == 0xFFFFFFU)
 		return std::string("ALL");
 
-	m_mutex.lock();
-
-	try {
-		b = m_table.at(id);
-		size_t n = b.find(" ");
-		if (n > 0) {
-			callsign = b.substr(0,n);
-			
-		} else {
-			LogDebug("b=%s",b.c_str());
-			callsign = b;
-		}
-		
-	} catch (...) {
+	class CUserDBentry entry;
+	if (m_table.lookup(id, &entry)) {
+		callsign = entry.get(keyCALLSIGN);
+	} else {
 		char text[10U];
-		::sprintf(text, "%u", id);
+		::snprintf(text, sizeof(text), "%u", id);
 		callsign = std::string(text);
 	}
 
-	m_mutex.unlock();
-
 	return callsign;
 }
 
 bool CDMRLookup::exists(unsigned int id)
 {
-	m_mutex.lock();
-
-	bool found = m_table.count(id) == 1U;
-
-	m_mutex.unlock();
-
-	return found;
+	return m_table.lookup(id, NULL);
 }
-
-bool CDMRLookup::load()
-{
-	FILE* fp = ::fopen(m_filename.c_str(), "rt");
-	if (fp == NULL) {
-		LogWarning("Cannot open the DMR Id lookup file - %s", m_filename.c_str());
-		return false;
-	}
-
-	m_mutex.lock();
-
-	// Remove the old entries
-	m_table.clear();
-
-	char buffer[100U];
-	while (::fgets(buffer, 100U, fp) != NULL) {
-		if (buffer[0U] == '#')
-			continue;
-
-		char* p1 = ::strtok(buffer, " \t\r\n");
-		char* p2 = ::strtok(NULL, " \r\n");  // tokenize to eol to capture name as well
-
-		if (p1 != NULL && p2 != NULL) {
-			unsigned int id = (unsigned int)::atoi(p1);
-			for (char* p = p2; *p != 0x00U; p++) {
-				
-				if(*p == 0x09U) 
-					*p = 0x20U;
-				
-				else 
-					*p = ::toupper(*p);
-				
-			}
-			m_table[id] = std::string(p2);
-		}
-	}
-
-	m_mutex.unlock();
-
-	::fclose(fp);
-
-	size_t size = m_table.size();
-	if (size == 0U)
-		return false;
-
-	LogInfo("Loaded %u Ids to the DMR callsign lookup table", size);
-
-	return true;
-}
\ No newline at end of file
diff --git a/DMRLookup.h b/DMRLookup.h
index 1156270..c4e5d90 100644
--- a/DMRLookup.h
+++ b/DMRLookup.h
@@ -20,10 +20,9 @@
 #define	DMRLookup_H
 
 #include "Thread.h"
-#include "Mutex.h"
+#include "UserDB.h"
 
 #include <string>
-#include <unordered_map>
 
 class CDMRLookup : public CThread {
 public:
@@ -35,20 +34,17 @@ public:
 	virtual void entry();
 
 	std::string find(unsigned int id);
-	std::string findWithName(unsigned int id);
+	void findWithName(unsigned int id, class CUserDBentry *entry);
 
 	bool exists(unsigned int id);
 
 	void stop();
 
 private:
-	std::string                                   m_filename;
-	unsigned int                                  m_reloadTime;
-	std::unordered_map<unsigned int, std::string> m_table;
-	CMutex                                        m_mutex;
-	bool                                          m_stop;
-
-	bool load();
+	std::string     m_filename;
+	unsigned int    m_reloadTime;
+	class CUserDB   m_table;
+	bool            m_stop;
 };
 
 #endif
diff --git a/DMRSlot.cpp b/DMRSlot.cpp
index f42def4..1cfecab 100644
--- a/DMRSlot.cpp
+++ b/DMRSlot.cpp
@@ -1108,7 +1108,8 @@ void CDMRSlot::writeNetwork(const CDMRData& dmrData)
 		setShortLC(m_slotNo, dstId, flco, ACTIVITY_VOICE);
 		std::string src = m_lookup->find(srcId);
 		std::string dst = m_lookup->find(dstId);
-		std::string cn = m_lookup->findWithName(srcId);
+		class CUserDBentry cn;
+		m_lookup->findWithName(srcId, &cn);
 		m_display->writeDMR(m_slotNo, cn, flco == FLCO_GROUP, dst, "N");
 
 #if defined(DUMP_DMR)
@@ -1177,7 +1178,8 @@ void CDMRSlot::writeNetwork(const CDMRData& dmrData)
 			setShortLC(m_slotNo, dstId, m_netLC->getFLCO(), ACTIVITY_VOICE);
 			std::string src = m_lookup->find(srcId);
 			std::string dst = m_lookup->find(dstId);
-			std::string cn  = m_lookup->findWithName(srcId);
+			class CUserDBentry cn;
+			m_lookup->findWithName(srcId, &cn);
 
 			m_display->writeDMR(m_slotNo, cn, m_netLC->getFLCO() == FLCO_GROUP, dst, "N");
 
@@ -1373,7 +1375,8 @@ void CDMRSlot::writeNetwork(const CDMRData& dmrData)
 	
 			std::string src = m_lookup->find(srcId);
 			std::string dst = m_lookup->find(dstId);
-			std::string cn  = m_lookup->findWithName(srcId);
+			class CUserDBentry cn;
+			m_lookup->findWithName(srcId, &cn);
 
 			m_display->writeDMR(m_slotNo, cn, m_netLC->getFLCO() == FLCO_GROUP, dst, "N");
 
diff --git a/Display.cpp b/Display.cpp
index 84148b7..5a74747 100644
--- a/Display.cpp
+++ b/Display.cpp
@@ -151,6 +151,29 @@ void CDisplay::writeDMR(unsigned int slotNo, const std::string& src, bool group,
 	writeDMRInt(slotNo, src, group, dst, type);
 }
 
+void CDisplay::writeDMR(unsigned int slotNo, const class CUserDBentry& src, bool group, const std::string& dst, const char* type)
+{
+	assert(type != NULL);
+
+	if (slotNo == 1U) {
+		m_timer1.start();
+		m_mode1 = MODE_IDLE;
+	} else {
+		m_timer2.start();
+		m_mode2 = MODE_IDLE;
+	}
+
+	if (int err = writeDMRIntEx(slotNo, src, group, dst, type)) {
+		std::string src_str = src.get(keyCALLSIGN);
+		if (err < 0 && !src.get(keyFIRST_NAME).empty()) {
+		  	// emulate the result of old CDMRLookup::findWithName()
+			//  (it returned callsign and firstname)
+			src_str += " " + src.get(keyFIRST_NAME);
+		}
+		writeDMRInt(slotNo, src_str, group, dst, type);
+	}
+}
+
 void CDisplay::writeDMRRSSI(unsigned int slotNo, unsigned char rssi)
 {
 	if (rssi != 0U)
@@ -267,6 +290,17 @@ void CDisplay::writeNXDN(const char* source, bool group, unsigned int dest, cons
 	writeNXDNInt(source, group, dest, type);
 }
 
+void CDisplay::writeNXDN(const class CUserDBentry& source, bool group, unsigned int dest, const char* type)
+{
+	assert(type != NULL);
+
+	m_timer1.start();
+	m_mode1 = MODE_IDLE;
+
+	if (writeNXDNIntEx(source, group, dest, type))
+		writeNXDNInt(source.get(keyCALLSIGN).c_str(), group, dest, type);
+}
+
 void CDisplay::writeNXDNRSSI(unsigned char rssi)
 {
 	if (rssi != 0U)
@@ -386,6 +420,20 @@ void CDisplay::writeDStarBERInt(float ber)
 {
 }
 
+int CDisplay::writeDMRIntEx(unsigned int slotNo, const class CUserDBentry& src, bool group, const std::string& dst, const char* type)
+{
+	/*
+	 * return value:
+	 *	< 0	error condition (i.e. not supported)
+	 *		-> call writeXXXXInt() to display
+	 *	= 0	no error, writeXXXXIntEx() displayed whole status
+	 *	= 1	no error, writeXXXXIntEx() displayed partial status
+	 *		-> call writeXXXXInt() to display remain part
+	 *	> 1	reserved for future use
+	 */
+	return -1;	// not supported
+}
+
 void CDisplay::writeDMRRSSIInt(unsigned int slotNo, unsigned char rssi)
 {
 }
@@ -421,6 +469,13 @@ void CDisplay::writeNXDNRSSIInt(unsigned char rssi)
 void CDisplay::writeNXDNBERInt(float ber)
 {
 }
+
+int CDisplay::writeNXDNIntEx(const class CUserDBentry& source, bool group, unsigned int dest, const char* type)
+{
+	/* return value definition is same as writeDMRIntEx() */
+	return -1;	// not supported
+}
+
 	
 /* Factory method extracted from MMDVMHost.cpp - BG5HHP */
 CDisplay* CDisplay::createDisplay(const CConf& conf, CUMP* ump, CModem* modem)
diff --git a/Display.h b/Display.h
index 65515be..74fa25b 100644
--- a/Display.h
+++ b/Display.h
@@ -20,6 +20,7 @@
 #define	DISPLAY_H
 
 #include "Timer.h"
+#include "UserDBentry.h"
 
 #include <string>
 
@@ -48,6 +49,7 @@ public:
 	void clearDStar();
 
 	void writeDMR(unsigned int slotNo, const std::string& src, bool group, const std::string& dst, const char* type);
+	void writeDMR(unsigned int slotNo, const class CUserDBentry& src, bool group, const std::string& dst, const char* type);
 	void writeDMRRSSI(unsigned int slotNo, unsigned char rssi);
 	void writeDMRBER(unsigned int slotNo, float ber);
 	void writeDMRTA(unsigned int slotNo, unsigned char* talkerAlias, const char* type);
@@ -64,6 +66,7 @@ public:
 	void clearP25();
 
 	void writeNXDN(const char* source, bool group, unsigned int dest, const char* type);
+	void writeNXDN(const class CUserDBentry& source, bool group, unsigned int dest, const char* type);
 	void writeNXDNRSSI(unsigned char rssi);
 	void writeNXDNBER(float ber);
 	void clearNXDN();
@@ -91,6 +94,7 @@ protected:
 	virtual void clearDStarInt() = 0;
 
 	virtual void writeDMRInt(unsigned int slotNo, const std::string& src, bool group, const std::string& dst, const char* type) = 0;
+	virtual int writeDMRIntEx(unsigned int slotNo, const class CUserDBentry& src, bool group, const std::string& dst, const char* type);
 	virtual void writeDMRRSSIInt(unsigned int slotNo, unsigned char rssi);
 	virtual void writeDMRTAInt(unsigned int slotNo, unsigned char* talkerAlias, const char* type);
 	virtual void writeDMRBERInt(unsigned int slotNo, float ber);
@@ -107,6 +111,7 @@ protected:
 	virtual void clearP25Int() = 0;
 
 	virtual void writeNXDNInt(const char* source, bool group, unsigned int dest, const char* type) = 0;
+	virtual int writeNXDNIntEx(const class CUserDBentry& source, bool group, unsigned int dest, const char* type);
 	virtual void writeNXDNRSSIInt(unsigned char rssi);
 	virtual void writeNXDNBERInt(float ber);
 	virtual void clearNXDNInt() = 0;
diff --git a/Makefile b/Makefile
index 9a24d1a..efdaba6 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ OBJECTS = \
 		NetworkInfo.o Nextion.o NullDisplay.o NullModem.o NXDNAudio.o NXDNControl.o NXDNConvolution.o NXDNCRC.o NXDNFACCH1.o NXDNLayer3.o NXDNLICH.o \
 		NXDNLookup.o NXDNNetwork.o NXDNSACCH.o NXDNUDCH.o P25Audio.o P25Control.o P25Data.o P25LowSpeedData.o P25Network.o P25NID.o P25Trellis.o P25Utils.o \
 		POCSAGControl.o POCSAGNetwork.o QR1676.o RemoteControl.o RS129.o RS241213.o RSSIInterpolator.o SerialController.o SerialPort.o SHA256.o StopWatch.o Sync.o TFTSerial.o \
-		TFTSurenoo.o Thread.o Timer.o UDPSocket.o UMP.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
+		TFTSurenoo.o Thread.o Timer.o UDPSocket.o UMP.o UserDB.o UserDBentry.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
 
 all:		MMDVMHost RemoteCommand
 
diff --git a/Makefile.Pi b/Makefile.Pi
index fe7da05..640c07f 100644
--- a/Makefile.Pi
+++ b/Makefile.Pi
@@ -13,7 +13,7 @@ OBJECTS = \
 		NetworkInfo.o Nextion.o NullDisplay.o NullModem.o NXDNAudio.o NXDNControl.o NXDNConvolution.o NXDNCRC.o NXDNFACCH1.o NXDNLayer3.o NXDNLICH.o NXDNLookup.o \
 		NXDNNetwork.o NXDNSACCH.o NXDNUDCH.o P25Audio.o P25Control.o P25Data.o P25LowSpeedData.o P25Network.o P25NID.o P25Trellis.o P25Utils.o POCSAGControl.o \
 		POCSAGNetwork.o QR1676.o RemoteControl.o RS129.o RS241213.o RSSIInterpolator.o SerialController.o SerialPort.o SHA256.o StopWatch.o Sync.o TFTSerial.o TFTSurenoo.o Thread.o Timer.o \
-		UDPSocket.o UMP.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
+		UDPSocket.o UMP.o UserDB.o UserDBentry.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
 
 all:		MMDVMHost RemoteCommand
 
diff --git a/Makefile.Pi.Adafruit b/Makefile.Pi.Adafruit
index 1849e68..24c2907 100644
--- a/Makefile.Pi.Adafruit
+++ b/Makefile.Pi.Adafruit
@@ -14,7 +14,7 @@ OBJECTS = \
 		NetworkInfo.o Nextion.o NullDisplay.o NullModem.o NXDNAudio.o NXDNControl.o NXDNConvolution.o NXDNCRC.o NXDNFACCH1.o NXDNLayer3.o NXDNLICH.o NXDNLookup.o \
 		NXDNNetwork.o NXDNSACCH.o NXDNUDCH.o P25Audio.o P25Control.o P25Data.o P25LowSpeedData.o P25Network.o P25NID.o P25Trellis.o P25Utils.o POCSAGControl.o \
 		POCSAGNetwork.o QR1676.o RemoteControl.o RS129.o RS241213.o RSSIInterpolator.o SerialController.o SerialPort.o SHA256.o StopWatch.o Sync.o TFTSerial.o TFTSurenoo.o Thread.o \
-		Timer.o UDPSocket.o UMP.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
+		Timer.o UDPSocket.o UMP.o UserDB.o UserDBentry.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
 
 all:		MMDVMHost RemoteCommand
 
diff --git a/Makefile.Pi.HD44780 b/Makefile.Pi.HD44780
index f7c0c31..c2faad2 100644
--- a/Makefile.Pi.HD44780
+++ b/Makefile.Pi.HD44780
@@ -13,7 +13,7 @@ OBJECTS = \
 		NetworkInfo.o Nextion.o NullDisplay.o NullModem.o NXDNAudio.o NXDNControl.o NXDNConvolution.o NXDNCRC.o NXDNFACCH1.o NXDNLayer3.o NXDNLICH.o NXDNLookup.o \
 		NXDNNetwork.o NXDNSACCH.o NXDNUDCH.o P25Audio.o P25Control.o P25Data.o P25LowSpeedData.o P25Network.o P25NID.o P25Trellis.o P25Utils.o POCSAGControl.o \
 		POCSAGNetwork.o QR1676.o RemoteControl.o RS129.o RS241213.o RSSIInterpolator.o SerialController.o SerialPort.o SHA256.o StopWatch.o Sync.o TFTSerial.o TFTSurenoo.o Thread.o \
-		Timer.o UDPSocket.o UMP.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
+		Timer.o UDPSocket.o UMP.o UserDB.o UserDBentry.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
 
 all:		MMDVMHost RemoteCommand
 
diff --git a/Makefile.Pi.OLED b/Makefile.Pi.OLED
index d6acd67..d2db40c 100644
--- a/Makefile.Pi.OLED
+++ b/Makefile.Pi.OLED
@@ -13,7 +13,7 @@ OBJECTS = \
 		NetworkInfo.o Nextion.o NullDisplay.o NullModem.o NXDNAudio.o NXDNControl.o NXDNConvolution.o NXDNCRC.o NXDNFACCH1.o NXDNLayer3.o NXDNLICH.o NXDNLookup.o \
 		NXDNNetwork.o NXDNSACCH.o NXDNUDCH.o P25Audio.o P25Control.o P25Data.o P25LowSpeedData.o P25Network.o P25NID.o P25Trellis.o P25Utils.o POCSAGControl.o \
 		POCSAGNetwork.o QR1676.o RemoteControl.o RS129.o RS241213.o RSSIInterpolator.o SerialController.o SerialPort.o SHA256.o StopWatch.o Sync.o TFTSerial.o TFTSurenoo.o Thread.o \
-		Timer.o UDPSocket.o UMP.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
+		Timer.o UDPSocket.o UMP.o UserDB.o UserDBentry.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
 
 all:		MMDVMHost RemoteCommand
 
diff --git a/Makefile.Pi.PCF8574 b/Makefile.Pi.PCF8574
index c3441c6..4c5d3a3 100644
--- a/Makefile.Pi.PCF8574
+++ b/Makefile.Pi.PCF8574
@@ -14,7 +14,7 @@ OBJECTS = \
 		NetworkInfo.o Nextion.o NullDisplay.o NullModem.o NXDNAudio.o NXDNControl.o NXDNConvolution.o NXDNCRC.o NXDNFACCH1.o NXDNLayer3.o NXDNLICH.o NXDNLookup.o \
 		NXDNNetwork.o NXDNSACCH.o NXDNUDCH.o P25Audio.o P25Control.o P25Data.o P25LowSpeedData.o P25Network.o P25NID.o P25Trellis.o P25Utils.o POCSAGControl.o \
 		POCSAGNetwork.o QR1676.o RemoteControl.o RS129.o RS241213.o RSSIInterpolator.o SerialController.o SerialPort.o SHA256.o StopWatch.o Sync.o TFTSerial.o TFTSurenoo.o Thread.o \
-		Timer.o UDPSocket.o UMP.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
+		Timer.o UDPSocket.o UMP.o UserDB.o UserDBentry.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
 
 all:		MMDVMHost RemoteCommand
 
diff --git a/Makefile.Solaris b/Makefile.Solaris
index 1d94eef..c50d41e 100644
--- a/Makefile.Solaris
+++ b/Makefile.Solaris
@@ -13,7 +13,7 @@ OBJECTS = \
 		NullDisplay.o NullModem.o NXDNAudio.o NXDNControl.o NXDNConvolution.o NXDNCRC.o NXDNFACCH1.o NXDNLayer3.o NXDNLICH.o NXDNLookup.o NXDNNetwork.o \
 		NXDNSACCH.o NXDNUDCH.o P25Audio.o P25Control.o P25Data.o P25LowSpeedData.o P25Network.o P25NID.o P25Trellis.o P25Utils.o POCSAGControl.o POCSAGNetwork.o \
 		QR1676.o RemoteControl.o RS129.o RS241213.o RSSIInterpolator.o SerialController.o SerialPort.o SHA256.o StopWatch.o Sync.o TFTSerial.o TFTSurenoo.o Thread.o Timer.o UDPSocket.o \
-		UMP.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
+		UMP.o UserDB.o UserDBebtry.o Utils.o YSFControl.o YSFConvolution.o YSFFICH.o YSFNetwork.o YSFPayload.o
 
 all:		MMDVMHost RemoteCommand
 
diff --git a/NXDNControl.cpp b/NXDNControl.cpp
index f36d7d0..1f3fa4c 100644
--- a/NXDNControl.cpp
+++ b/NXDNControl.cpp
@@ -835,15 +835,16 @@ void CNXDNControl::writeNetwork()
 
 		unsigned short dstId = m_netLayer3.getDestinationGroupId();
 		bool grp             = m_netLayer3.getIsGroup();
-		std::string source   = m_lookup->find(m_netLayer3.getSourceUnitId());
+		class CUserDBentry source;
+		m_lookup->findWithName(m_netLayer3.getSourceUnitId(), &source);
 
 		if (type == NXDN_MESSAGE_TYPE_TX_REL) {
 			m_netFrames++;
-			LogMessage("NXDN, received network end of transmission from %s to %s%u, %.1f seconds", source.c_str(), grp ? "TG " : "", dstId, float(m_netFrames) / 12.5F);
+			LogMessage("NXDN, received network end of transmission from %s to %s%u, %.1f seconds", source.get(keyCALLSIGN).c_str(), grp ? "TG " : "", dstId, float(m_netFrames) / 12.5F);
 			writeEndNet();
 		} else if (type == NXDN_MESSAGE_TYPE_VCALL) {
-			LogMessage("NXDN, received network transmission from %s to %s%u", source.c_str(), grp ? "TG " : "", dstId);
-			m_display->writeNXDN(source.c_str(), grp, dstId, "N");
+			LogMessage("NXDN, received network transmission from %s to %s%u", source.get(keyCALLSIGN).c_str(), grp ? "TG " : "", dstId);
+			m_display->writeNXDN(source, grp, dstId, "N");
 
 			m_netTimeoutTimer.start();
 			m_packetTimer.start();
@@ -892,9 +893,10 @@ void CNXDNControl::writeNetwork()
 			unsigned short dstId = m_netLayer3.getDestinationGroupId();
 			bool grp             = m_netLayer3.getIsGroup();
 
-			std::string source = m_lookup->find(srcId);
-			LogMessage("NXDN, received network transmission from %s to %s%u", source.c_str(), grp ? "TG " : "", dstId);
-			m_display->writeNXDN(source.c_str(), grp, dstId, "N");
+			class CUserDBentry source;
+			m_lookup->findWithName(srcId, &source);
+			LogMessage("NXDN, received network transmission from %s to %s%u", source.get(keyCALLSIGN).c_str(), grp ? "TG " : "", dstId);
+			m_display->writeNXDN(source, grp, dstId, "N");
 
 			m_netTimeoutTimer.start();
 			m_packetTimer.start();
diff --git a/NXDNLookup.cpp b/NXDNLookup.cpp
index 2c621b6..c12ed27 100644
--- a/NXDNLookup.cpp
+++ b/NXDNLookup.cpp
@@ -30,7 +30,6 @@ CThread(),
 m_filename(filename),
 m_reloadTime(reloadTime),
 m_table(),
-m_mutex(),
 m_stop(false)
 {
 }
@@ -41,7 +40,7 @@ CNXDNLookup::~CNXDNLookup()
 
 bool CNXDNLookup::read()
 {
-	bool ret = load();
+	bool ret = m_table.load(m_filename);
 
 	if (m_reloadTime > 0U)
 		run();
@@ -61,7 +60,7 @@ void CNXDNLookup::entry()
 
 		timer.clock();
 		if (timer.hasExpired()) {
-			load();
+			m_table.load(m_filename);
 			timer.start();
 		}
 	}
@@ -81,6 +80,27 @@ void CNXDNLookup::stop()
 	wait();
 }
 
+void CNXDNLookup::findWithName(unsigned int id, class CUserDBentry *entry)
+{
+	if (id == 0xFFFFU) {
+		entry->clear();
+		entry->set(keyCALLSIGN, "ALL");
+		return;
+	}
+
+	if (m_table.lookup(id, entry)) {
+		LogDebug("FindWithName =%s %s", entry->get(keyCALLSIGN).c_str(), entry->get(keyFIRST_NAME).c_str());
+	} else {
+		entry->clear();
+
+		char text[10U];
+		::snprintf(text, sizeof(text), "%u", id);
+		entry->set(keyCALLSIGN, text);
+	}
+
+	return;
+}
+
 std::string CNXDNLookup::find(unsigned int id)
 {
 	std::string callsign;
@@ -88,73 +108,19 @@ std::string CNXDNLookup::find(unsigned int id)
 	if (id == 0xFFFFU)
 		return std::string("ALL");
 
-	m_mutex.lock();
-
-	try {
-		callsign = m_table.at(id);
-	} catch (...) {
+	class CUserDBentry entry;
+	if (m_table.lookup(id, &entry)) {
+		callsign = entry.get(keyCALLSIGN);
+	} else {
 		char text[10U];
-		::sprintf(text, "%u", id);
+		::snprintf(text, sizeof(text), "%u", id);
 		callsign = std::string(text);
 	}
 
-	m_mutex.unlock();
-
 	return callsign;
 }
 
 bool CNXDNLookup::exists(unsigned int id)
 {
-	m_mutex.lock();
-
-	bool found = m_table.count(id) == 1U;
-
-	m_mutex.unlock();
-
-	return found;
+	return m_table.lookup(id, NULL);
 }
-
-bool CNXDNLookup::load()
-{
-	FILE* fp = ::fopen(m_filename.c_str(), "rt");
-	if (fp == NULL) {
-		LogWarning("Cannot open the NXDN Id lookup file - %s", m_filename.c_str());
-		return false;
-	}
-
-	m_mutex.lock();
-
-	// Remove the old entries
-	m_table.clear();
-
-	char buffer[100U];
-	while (::fgets(buffer, 100U, fp) != NULL) {
-		if (buffer[0U] == '#')
-			continue;
-
-		char* p1 = ::strtok(buffer, ",\t\r\n");
-		char* p2 = ::strtok(NULL, ",\t\r\n");
-
-		if (p1 != NULL && p2 != NULL) {
-			unsigned int id = (unsigned int)::atoi(p1);
-			if (id > 0U) {
-				for (char* p = p2; *p != 0x00U; p++)
-					*p = ::toupper(*p);
-
-				m_table[id] = std::string(p2);
-			}
-		}
-	}
-
-	m_mutex.unlock();
-
-	::fclose(fp);
-
-	size_t size = m_table.size();
-	if (size == 0U)
-		return false;
-
-	LogInfo("Loaded %u Ids to the NXDN callsign lookup table", size);
-
-	return true;
-}
\ No newline at end of file
diff --git a/NXDNLookup.h b/NXDNLookup.h
index d7b0486..c53a927 100644
--- a/NXDNLookup.h
+++ b/NXDNLookup.h
@@ -20,10 +20,9 @@
 #define	NXDNLookup_H
 
 #include "Thread.h"
-#include "Mutex.h"
+#include "UserDB.h"
 
 #include <string>
-#include <unordered_map>
 
 class CNXDNLookup : public CThread {
 public:
@@ -35,19 +34,17 @@ public:
 	virtual void entry();
 
 	std::string find(unsigned int id);
+	void findWithName(unsigned int id, class CUserDBentry *entry);
 
 	bool exists(unsigned int id);
 
 	void stop();
 
 private:
-	std::string                                   m_filename;
-	unsigned int                                  m_reloadTime;
-	std::unordered_map<unsigned int, std::string> m_table;
-	CMutex                                        m_mutex;
-	bool                                          m_stop;
-
-	bool load();
+	std::string     m_filename;
+	unsigned int    m_reloadTime;
+	class CUserDB   m_table;
+	bool            m_stop;
 };
 
 #endif
diff --git a/TFTSurenoo.cpp b/TFTSurenoo.cpp
index 5d15856..a2eba9e 100644
--- a/TFTSurenoo.cpp
+++ b/TFTSurenoo.cpp
@@ -135,7 +135,7 @@ void CTFTSurenoo::setIdleInt()
 {
 	setModeLine(STR_MMDVM);
 
-	::snprintf(m_temp, sizeof(m_temp), "%-6s / %u", m_callsign.c_str(), m_dmrid);
+	::snprintf(m_temp, sizeof(m_temp), "%s / %u", m_callsign.c_str(), m_dmrid);
 	setStatusLine(statusLineNo(0), m_temp);
 	setStatusLine(statusLineNo(1), "IDLE");
 
@@ -184,14 +184,14 @@ void CTFTSurenoo::writeDStarInt(const char* my1, const char* my2, const char* yo
 
 	setModeLine(STR_MMDVM);
 
-	::snprintf(m_temp, sizeof(m_temp), "%s %.8s/%4.4s", type, my1, my2);
+	::snprintf(m_temp, sizeof(m_temp), "%s %s/%s", type, my1, my2);
 	setStatusLine(statusLineNo(0), m_temp);
 
-	::snprintf(m_temp, sizeof(m_temp), "%.8s", your);
+	::snprintf(m_temp, sizeof(m_temp), "%s", your);
 	setStatusLine(statusLineNo(1), m_temp);
 
 	if (::strcmp(reflector, "        ") != 0)
-		::snprintf(m_temp, sizeof(m_temp), "via %.8s", reflector);
+		::snprintf(m_temp, sizeof(m_temp), "via %s", reflector);
 	else
 		::strcpy(m_temp, "");
 	setStatusLine(statusLineNo(2), m_temp);
@@ -202,8 +202,8 @@ void CTFTSurenoo::writeDStarInt(const char* my1, const char* my2, const char* yo
 void CTFTSurenoo::clearDStarInt()
 {
 	setStatusLine(statusLineNo(0), "Listening");
-	setStatusLine(statusLineNo(1), "");
-	setStatusLine(statusLineNo(2), "");
+	for (int i = 1; i < STATUS_LINES; i++)
+		setStatusLine(statusLineNo(i), "");
 }
 
 void CTFTSurenoo::writeDMRInt(unsigned int slotNo, const std::string& src, bool group, const std::string& dst, const char* type)
@@ -230,6 +230,25 @@ void CTFTSurenoo::writeDMRInt(unsigned int slotNo, const std::string& src, bool
 	m_mode = MODE_DMR;
 }
 
+int CTFTSurenoo::writeDMRIntEx(unsigned int slotNo, const class CUserDBentry& src, bool group, const std::string& dst, const char* type)
+{
+	assert(type != NULL);
+
+	// duplex mode is not supported
+	if (m_duplex)
+		return -1;
+
+	setModeLine(STR_DMR);
+	setStatusLine(statusLineNo(2), (src.get(keyFIRST_NAME) + " " + src.get(keyLAST_NAME)).c_str());
+	setStatusLine(statusLineNo(3), src.get(keyCITY).c_str());
+	setStatusLine(statusLineNo(4), src.get(keySTATE).c_str());
+	setStatusLine(statusLineNo(5), src.get(keyCOUNTRY).c_str());
+
+	m_mode = MODE_DMR;
+
+	return 1;
+}
+
 void CTFTSurenoo::clearDMRInt(unsigned int slotNo)
 {
 	int pos = m_duplex ? (slotNo - 1) : 0;
@@ -239,7 +258,8 @@ void CTFTSurenoo::clearDMRInt(unsigned int slotNo)
 		::snprintf(m_temp, sizeof(m_temp), "TS%d", slotNo);
 		setStatusLine(statusLineNo(pos * 2 + 1), m_temp);
 	} else {
-		setStatusLine(statusLineNo(1), "");
+		for (int i = 1; i < STATUS_LINES; i++)
+			setStatusLine(statusLineNo(i), "");
 	}
 }
 
@@ -252,14 +272,14 @@ void CTFTSurenoo::writeFusionInt(const char* source, const char* dest, const cha
 
 	setModeLine(STR_YSF);
 
-	::snprintf(m_temp, sizeof(m_temp), "%s %.10s", type, source);
+	::snprintf(m_temp, sizeof(m_temp), "%s %s", type, source);
 	setStatusLine(statusLineNo(0), m_temp);
 
-	::snprintf(m_temp, sizeof(m_temp), "  %.10s", dest);
+	::snprintf(m_temp, sizeof(m_temp), "%s", dest);
 	setStatusLine(statusLineNo(1), m_temp);
 
 	if (::strcmp(origin, "          ") != 0)
-		::snprintf(m_temp, sizeof(m_temp), "at %.10s", origin);
+		::snprintf(m_temp, sizeof(m_temp), "at %s", origin);
 	else
 		::strcpy(m_temp, "");
 	setStatusLine(statusLineNo(2), m_temp);
@@ -279,10 +299,10 @@ void CTFTSurenoo::writeP25Int(const char* source, bool group, unsigned int dest,
 
 	setModeLine(STR_P25);
 
-	::snprintf(m_temp, sizeof(m_temp), "%s %.10s", type, source);
+	::snprintf(m_temp, sizeof(m_temp), "%s %s", type, source);
 	setStatusLine(statusLineNo(0), m_temp);
 
-	::snprintf(m_temp, sizeof(m_temp), "  %s%u", group ? "TG" : "", dest);
+	::snprintf(m_temp, sizeof(m_temp), "%s%u", group ? "TG" : "", dest);
 	setStatusLine(statusLineNo(1), m_temp);
 
 	m_mode = MODE_P25;
@@ -298,17 +318,33 @@ void CTFTSurenoo::writeNXDNInt(const char* source, bool group, unsigned int dest
 	assert(source != NULL);
 	assert(type != NULL);
 
-	setModeLine(STR_NXDN);
+	if (m_mode != MODE_NXDN)
+		setModeLine(STR_NXDN);
 
-	::snprintf(m_temp, sizeof(m_temp), "%s %.10s", type, source);
+	::snprintf(m_temp, sizeof(m_temp), "%s %s", type, source);
 	setStatusLine(statusLineNo(0), m_temp);
 
-	::snprintf(m_temp, sizeof(m_temp), "  %s%u", group ? "TG" : "", dest);
+	::snprintf(m_temp, sizeof(m_temp), "%s%u", group ? "TG" : "", dest);
 	setStatusLine(statusLineNo(1), m_temp);
 
 	m_mode = MODE_NXDN;
 }
 
+int CTFTSurenoo::writeNXDNIntEx(const class CUserDBentry& source, bool group, unsigned int dest, const char* type)
+{
+	assert(type != NULL);
+
+	setModeLine(STR_NXDN);
+	setStatusLine(statusLineNo(2), (source.get(keyFIRST_NAME) + " " + source.get(keyLAST_NAME)).c_str());
+	setStatusLine(statusLineNo(3), source.get(keyCITY).c_str());
+	setStatusLine(statusLineNo(4), source.get(keySTATE).c_str());
+	setStatusLine(statusLineNo(5), source.get(keyCOUNTRY).c_str());
+
+	m_mode = MODE_NXDN;
+
+	return 1;
+}
+
 void CTFTSurenoo::clearNXDNInt()
 {
 	clearDStarInt();
diff --git a/TFTSurenoo.h b/TFTSurenoo.h
index 20a743a..d058c3e 100644
--- a/TFTSurenoo.h
+++ b/TFTSurenoo.h
@@ -23,6 +23,7 @@
 #include "Display.h"
 #include "Defines.h"
 #include "SerialPort.h"
+#include "UserDBentry.h"
 
 #include <string>
 
@@ -46,6 +47,7 @@ protected:
 	virtual void clearDStarInt();
 
 	virtual void writeDMRInt(unsigned int slotNo, const std::string& src, bool group, const std::string& dst, const char* type);
+	virtual int writeDMRIntEx(unsigned int slotNo, const class CUserDBentry& src, bool group, const std::string& dst, const char* type);
 	virtual void clearDMRInt(unsigned int slotNo);
 
 	virtual void writeFusionInt(const char* source, const char* dest, const char* type, const char* origin);
@@ -55,6 +57,7 @@ protected:
 	virtual void clearP25Int();
 
 	virtual void writeNXDNInt(const char* source, bool group, unsigned int dest, const char* type);
+	virtual int writeNXDNIntEx(const class CUserDBentry& source, bool group, unsigned int dest, const char* type);
 	virtual void clearNXDNInt();
 
 	virtual void writePOCSAGInt(uint32_t ric, const std::string& message);
diff --git a/UserDB.cpp b/UserDB.cpp
new file mode 100644
index 0000000..9984d63
--- /dev/null
+++ b/UserDB.cpp
@@ -0,0 +1,187 @@
+/*
+ *   Copyright (C) 2020 by SASANO Takayoshi JG1UAA
+ *
+ *   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 2 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, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include "UserDB.h"
+#include "Log.h"
+
+#include <cstdio>
+#include <cstring>
+#include <cctype>
+
+CUserDB::CUserDB() :
+m_table(),
+m_mutex()
+{
+}
+
+CUserDB::~CUserDB()
+{
+}
+
+bool CUserDB::lookup(unsigned int id, class CUserDBentry *entry)
+{
+	bool rv;
+
+	m_mutex.lock();
+
+	try {
+		if (entry != NULL)
+			*entry = m_table.at(id);
+		else
+			m_table.at(id);
+
+		rv = true;
+	} catch (...) {
+		rv = false;
+	}
+
+	m_mutex.unlock();
+
+	return rv;
+}
+
+bool CUserDB::load(std::string const& filename)
+{
+	FILE* fp = ::fopen(filename.c_str(), "r");
+	if (fp == NULL) {
+		LogWarning("Cannot open ID lookup file - %s", filename.c_str());
+		return false;
+	}
+
+	m_mutex.lock();
+
+	// Remove the old entries;
+	m_table.clear();
+
+	// set index for entries
+	char buffer[256U];
+	if (::fgets(buffer, sizeof(buffer), fp) == NULL) {
+		LogWarning("ID lookup file has no entry - %s", filename.c_str());
+		m_mutex.unlock();
+		::fclose(fp);
+		return false;
+	}
+
+	// no index - set default
+	std::unordered_map<std::string, int> index;
+	if (!makeindex(buffer, index)) {
+		::strncpy(buffer, keyRADIO_ID "," keyCALLSIGN "," keyFIRST_NAME, sizeof(buffer));
+		makeindex(buffer, index);
+		::rewind(fp);
+	}
+
+	while (::fgets(buffer, sizeof(buffer), fp) != NULL) {
+		if (buffer[0U] != '#')
+			parse(buffer, index);
+	}
+
+	::fclose(fp);
+
+	size_t size = m_table.size();
+	m_mutex.unlock();
+
+	LogInfo("Loaded %u IDs to lookup table - %s", size, filename.c_str());
+
+	return size != 0U;
+}
+
+bool CUserDB::makeindex(char* buf, std::unordered_map<std::string, int>& index)
+{
+	int i;
+	char *p1, *p2;
+
+	// Remove the old index
+	index.clear();
+
+	for (i = 0, p1 = tokenize(buf, &p2); p1 != NULL;
+	     i++, p1 = tokenize(p2, &p2)) {
+
+		// create [column keyword] - [column number] table
+		if (CUserDBentry::isValidKey(p1))
+			index[p1] = i;
+	}
+
+	try {
+		index.at(keyRADIO_ID);
+		index.at(keyCALLSIGN);
+		return true;
+	} catch (...) {
+		return false;
+	}
+}
+
+void CUserDB::parse(char* buf, std::unordered_map<std::string, int>& index)
+{
+	int i;
+	char *p1, *p2;
+	std::unordered_map<std::string, char*> ptr;
+	unsigned int id;
+
+	for (i = 0, p1 = tokenize(buf, &p2); p1 != NULL;
+	     i++, p1 = tokenize(p2, &p2)) {
+
+		for (auto it = index.begin(); it != index.end(); it++) {
+			// first: column keyword, second: column number
+			if (it->second == i) {
+				ptr[it->first] = p1;
+				break;
+			}
+		}
+	}
+
+	try {
+		ptr.at(keyRADIO_ID);
+		ptr.at(keyCALLSIGN);
+	} catch (...) {
+		return;
+	}
+
+	id = (unsigned int)::atoi(ptr[keyRADIO_ID]);
+	toupper_string(ptr[keyCALLSIGN]);
+
+	for (auto it = ptr.begin(); it != ptr.end(); it++) {
+		// no need to regist radio ID
+		if (it->first == keyRADIO_ID)
+			continue;
+
+		m_table[id].set(it->first, it->second);
+	}
+}
+
+void CUserDB::toupper_string(char* str)
+{
+	while (*str != '\0') {  
+		*str = ::toupper(*str);
+		str++;
+	}
+}
+
+char* CUserDB::tokenize(char* str, char** next)
+{
+	if (*str == '\0')
+		return NULL;
+
+	char* p = ::strpbrk(str, ",\t\r\n");
+	if (p == NULL) {
+		*next = str + ::strlen(str);
+	} else {
+		*p = '\0';
+		*next = p + 1;
+	}
+
+	return str;
+}
diff --git a/UserDB.h b/UserDB.h
new file mode 100644
index 0000000..acae103
--- /dev/null
+++ b/UserDB.h
@@ -0,0 +1,43 @@
+/*
+ *   Copyright (C) 2020 by SASANO Takayoshi JG1UAA
+ *
+ *   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 2 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, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if !defined(USERDB_H)
+#define USERDB_H
+
+#include "UserDBentry.h"
+#include "Mutex.h"
+
+class CUserDB {
+public:
+	CUserDB();
+	~CUserDB();
+
+	bool lookup(unsigned int id, class CUserDBentry *entry);
+	bool load(std::string const& filename);
+
+private:
+	bool makeindex(char* buf, std::unordered_map<std::string, int>& index);
+	void parse(char* buf, std::unordered_map<std::string, int>& index);
+	void toupper_string(char* str);
+	char* tokenize(char* str, char** next);
+
+	std::unordered_map<unsigned int, class CUserDBentry>    m_table;
+	CMutex                                                  m_mutex;
+};
+	
+#endif
diff --git a/UserDBentry.cpp b/UserDBentry.cpp
new file mode 100644
index 0000000..0121544
--- /dev/null
+++ b/UserDBentry.cpp
@@ -0,0 +1,59 @@
+/*
+ *   Copyright (C) 2020 by SASANO Takayoshi JG1UAA
+ *
+ *   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 2 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, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include "UserDBentry.h"
+#include <algorithm>
+
+CUserDBentry::CUserDBentry() :
+m_db()
+{
+}
+
+CUserDBentry::~CUserDBentry()
+{
+}
+
+const std::vector<std::string> CUserDBentry::keyList {
+	keyRADIO_ID, keyCALLSIGN, keyFIRST_NAME, keyLAST_NAME,
+	keyCITY, keySTATE, keyCOUNTRY,
+};
+
+bool CUserDBentry::isValidKey(const std::string key)
+{
+	auto it = std::find(keyList.begin(), keyList.end(), key);
+	return it != keyList.end();
+}
+
+void CUserDBentry::set(const std::string key, const std::string value)
+{
+	if (!value.empty() && isValidKey(key))
+		m_db[key] = value;
+}
+
+const std::string CUserDBentry::get(const std::string key) const
+{
+	try {
+		return m_db.at(key);
+	} catch (...) {
+		return "";
+	}
+}
+
+void CUserDBentry::clear(void)
+{
+	m_db.clear();
+}
diff --git a/UserDBentry.h b/UserDBentry.h
new file mode 100644
index 0000000..cbca92f
--- /dev/null
+++ b/UserDBentry.h
@@ -0,0 +1,50 @@
+/*
+ *   Copyright (C) 2020 by SASANO Takayoshi JG1UAA
+ *
+ *   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 2 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, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if !defined(USERDBENTRY_H)
+#define USERDBENTRY_H
+
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#define keyRADIO_ID	"RADIO_ID"
+#define keyCALLSIGN	"CALLSIGN"
+#define keyFIRST_NAME	"FIRST_NAME"
+#define keyLAST_NAME	"LAST_NAME"
+#define keyCITY		"CITY"
+#define keySTATE	"STATE"
+#define keyCOUNTRY	"COUNTRY"
+
+class CUserDBentry {
+public:
+	CUserDBentry();
+	~CUserDBentry();
+
+	static const std::vector<std::string> keyList;
+	static bool isValidKey(const std::string key);
+
+	void set(const std::string key, const std::string value);
+	const std::string get(const std::string key) const;
+	void clear(void);
+
+private:
+	std::unordered_map<std::string, std::string>    m_db;
+};
+
+#endif