diff --git a/icssessionmanager/agentoperator.go b/icssessionmanager/agentoperator.go
index cc100d6..1894404 100644
--- a/icssessionmanager/agentoperator.go
+++ b/icssessionmanager/agentoperator.go
@@ -293,7 +293,9 @@ func (s *IcsSession) RequestInvite(inviteto string) {
 
 		// postfix := "192.168.0.83"
 		var callid string
+		s.m.Lock()
 		s.callID = uuid.New().String()
+		s.m.Unlock()
 		callid = s.callID
 		// if len(s.callID) != 0 {
 		// 	callid = s.callID
@@ -386,13 +388,16 @@ func (s *IcsSession) PassInvite(sip *icspacketparser.SIP) *icserror.IcsError {
 
 	via := fmt.Sprintf("SIP/2.0/UDP %s;rport;branch=%s", ip, sipasm.GenerateBranch())
 	maxforwards := "70"
-	from := fmt.Sprintf("<sip:%s@%s:5090>;tag=%s", "AISB", ip, sipasm.GenerateTag())
+	agentName := s.AgentName
+	agentSplit := agentName[len(agentName)-2:len(agentName)]
+	telNo := fmt.Sprintf("010243427%s", agentSplit)
+	from := fmt.Sprintf("<sip:%s@%s:5090>;tag=%s", telNo, ip, sipasm.GenerateTag())
 
 	s.uri = fmt.Sprintf("sip:%s@%s", s.AgentName, ip)
 	l.Printf(icslog.LOG_LEVEL_INFO, s.ID, "Set URI [%s]", s.uri)
 
 	s.referto = sip.XAICall
-	to := fmt.Sprintf("<sip:%s@%s;user=phone>", "01025670081", ip)
+	to := fmt.Sprintf("<sip:%s@%s;user=phone>", "AISB", ip)
 	//to := fmt.Sprintf("<sip:%s@%s>", s.AgentName, ip)
 	// postfix := fmt.Sprintf("@%s", ip)
 	var callid string
@@ -404,7 +409,9 @@ func (s *IcsSession) PassInvite(sip *icspacketparser.SIP) *icserror.IcsError {
 	// } else {
 	// 	callid = sipasm.GenerateCallID(postfix)
 	// }
+	s.m.Lock()
 	s.callID = callid
+	s.m.Unlock()
 	cseq := fmt.Sprintf("%d INVITE", s.Cseq)
 	s.Cseq++
 	contact := fmt.Sprintf("<sip:%s@%s:%d;transport=%s>", "AISB", ip, port, transport)
@@ -839,6 +846,9 @@ func (s *IcsSession) ProcACKInvite(sip *icspacketparser.SIP) *icserror.IcsError
 	name1 := strings.SplitN(sip.To, "@", 2)
 	name2 := strings.SplitN(name1[0], ":", 2)
 	ac := FindAgentConfig(name2[1])
+	s.m.Lock()
+	s.callID = sip.CallID
+	s.m.Unlock()
 	if ac == nil {
 		l.Printf(icslog.LOG_LEVEL_ERROR, s.ID, "Could not found Agent Name - %s",
 			icserror.ICSERRUnkown.GetMessage())
@@ -1071,7 +1081,6 @@ func (s *IcsSession) ProcACKInvite(sip *icspacketparser.SIP) *icserror.IcsError
 		///////////////////////////////////////////
 
 		fmt.Println(s)
-		fmt.Println("loop count ", s.simLoopCount)
 		l.Printf(icslog.LOG_LEVEL_INFO, s.ID, "Sent Data(%d) [%s]->[%s]>\n%s",
 			wlen,
 			(*s.sipNeter).LocalAddr().String(),
@@ -1176,7 +1185,7 @@ func (s *IcsSession) ProcBye(sip *icspacketparser.SIP) *icserror.IcsError {
 	/////////////////////////////////////////////
 	//set call signal addr
 	// fmt.Println(s)
-	csraddr := icsnet.NewNetAddrWithIPPort(s.AgentInfo.IP, s.AgentInfo.Port)
+	// csraddr := icsnet.NewNetAddrWithIPPort(s.AgentInfo.IP, s.AgentInfo.Port)
 	//csladdr := icsnet.NewNetAddrWithIPPort(conf.VoiceAgentConfig.MyAddr.ServerIP, conf.VoiceAgentConfig.MyAddr.ServerPort)
 	/*
 		csraddr := icsnet.NewNetAddrWithIPPort(conf.VoiceAgentConfig.AgentInfo[s.ID].IP, conf.VoiceAgentConfig.AgentInfo[s.ID].Port)
@@ -1186,7 +1195,7 @@ func (s *IcsSession) ProcBye(sip *icspacketparser.SIP) *icserror.IcsError {
 	defer func() {
 		if err := recover(); err != nil {
 			l.Printf(icslog.LOG_LEVEL_WARN, s.ID, "%s %s\n%s",
-				icserror.ICSERRNETNotConnectError.GetMessage(), csraddr, debug.Stack())
+				icserror.ICSERRNETNotConnectError.GetMessage(), "", debug.Stack())
 		}
 	}()
 	var inout string = "O"
@@ -1396,8 +1405,10 @@ func (s *IcsSession) SendRTPCB(t *icscbtimer.IcsCBTimer) {
 	readPcmData, ferr := ioutil.ReadFile(voiceFilePath)
 	if ferr != nil {
 		fmt.Println("Read Voice File error ", ferr)
+		l.Printf(icslog.LOG_LEVEL_ERROR, s.ID, "############ VoiceFile Read ERROR")
 		return
 	}
+	// l.Printf(icslog.LOG_LEVEL_ERROR, s.ID, "############ readPcmData %d", readPcmData)
 	
 
 	s.m.Lock()
@@ -1420,18 +1431,20 @@ func (s *IcsSession) SendRTPCB(t *icscbtimer.IcsCBTimer) {
 	}
 	//defer s.TxConverter.Close()
 
-	fmt.Printf("@@@@@@@@@@@@@@@@@ pcmDataLen : %d, loop Count: %d \r\n", pcmDataLen, conf.CallEndInfo.Loop)
+	// l.Printf(icslog.LOG_LEVEL_ERROR, s.ID, "@@@@@@@@@@@@@@@@@ pcmDataLen : %d, loop Count: %d \r\n", pcmDataLen, conf.CallEndInfo.Loop)
+	// fmt.Printf("@@@@@@@@@@@@@@@@@ pcmDataLen : %d, loop Count: %d \r\n", pcmDataLen, conf.CallEndInfo.Loop)
 	//fmt.Println(">>>", s.payloadType, icspacketparser.RTPPayloadInfo[s.payloadType].PSize)
 	var rtp *icsrtp.RTP
 	if conf.CallEndInfo.Value {
 		for lc := 0; lc < conf.CallEndInfo.Loop; lc++ {
-			fmt.Printf("@@@@@@@@@@@@@@@@@@@@@@ %d ", lc)
+			// fmt.Printf("@@@@@@@@@@@@@@@@@@@@@@ %d ", lc)
 			iter := 0
 			totalSentLen := 0
 			offset := 0
 			psize := icspacketparser.RTPPayloadInfo[s.payloadType].PSize
 			ts := s.rtpTS
 			seq := s.rtpSeq
+			// l.Printf(icslog.LOG_LEVEL_ERROR, s.ID, "@@@@@@@@@@@@@@@@@ writRTP ERROR offset: %+v, psize: %+v, ts: %+v\r\n", offset, psize, ts)
 			for t1 := range t.GetTick() {
 				if pcmDataLen < offset+psize {
 					//fmt.Println("BREAK!", pcmDataLen, offset+psize*2)
@@ -1498,6 +1511,7 @@ func (s *IcsSession) SendRTPCB(t *icscbtimer.IcsCBTimer) {
 				//fmt.Printf("1095@@@@ %+v\n", s.rtpMediaNeter)
 				wlen, werr := s.rtpMediaNeter.WriteRTP(rtp.Byte())
 				if werr != nil {
+					// l.Printf(icslog.LOG_LEVEL_ERROR, s.ID, "@@@@@@@@@@@@@@@@@ writRTP ERROR t1: %+v, wlen: %+v, werr: %+v\r\n", t1, wlen, werr)
 					fmt.Println(t1, wlen, werr)
 				}
 				//fmt.Printf("wlen: %d\r", totalSentLen)