SIP Line configuration for STC

[rsv23]

Hi

Is there anyone experienced to setup SIP line using STC ISP?

STC provided the details but very limited support.

I can see the SIP line is registered but for some reason incoming and outgoing call doesn't work.

The incoming call doesn't even landed to the SSA.

 

[derfloh]

Sounds like a firewall issue.

IP Office remote service
IP Office certificate check
CLI based call blocking
SCN fallback over PSTN

 

[rsv23]

Thanks for the reply @derfloh

There's no firewall between ISP and the PBX.

The setup is: Fibercable -> STC SBC ONT port 3 -Cat6-> to Avaya IPO PBX port lan2.

 

[nnaarrnn]

Do you have an IP Route setup for LAN2?

 

[derfloh]

Hard to find out without information. Do you have a SIP trace?

IP Office remote service
IP Office certificate check
CLI based call blocking
SCN fallback over PSTN

 

[rsv23]

Yes IP route is setup for Lan2.

15:53:51 9979409mS SIP Rx: UDP 10.200.7.157:5060 -> 10.170.68.202:5060
OPTIONS sip:10.170.68.202:5060 SIP/2.0
Via: SIP/2.0/UDP 10.200.7.157:5060;branch=z9hG4bKvkppoyxeequgeqqyzr211kver;Role=3;Hpt=8f88_16;TRC=ffffffff-ffffffff;pth=0;X-HwDim=4
Call-ID: z1rbegeevkxky2ruov2bgrb1vyubbvo1@157.7.200.10
From: <sip:SBC@10.200.7.157>;tag=xkq1kpbq
To: <sip:10.170.68.202>
CSeq: 1 OPTIONS
Contact: <sip:10.200.7.157:5060;transport=udp;Hpt=13c4_16>;expires=65535
Accept: application/sdp
Max-Forwards: 70
Content-Length: 0

15:53:51 9979413mS SIP Tx: UDP 10.170.68.202:5060 -> 10.200.7.157:5060
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.200.7.157:5060;branch=z9hG4bKvkppoyxeequgeqqyzr211kver;Role=3;Hpt=8f88_16;TRC=ffffffff-ffffffff;pth=0;X-HwDim=4
From: <sip:SBC@10.200.7.157>;tag=xkq1kpbq
Call-ID: z1rbegeevkxky2ruov2bgrb1vyubbvo1@157.7.200.10
CSeq: 1 OPTIONS
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,REFER,NOTIFY,UPDATE
Supported: timer
Server: IP Office 11.1.3.1.0 build 34
Content-Type: application/sdp
To: <sip:10.170.68.202>;tag=65943de176a2b64e
Content-Length: 244

v=0
o=UserA 1815241275 777078428 IN IP4 10.170.68.202
s=Session SDP
c=IN IP4 10.170.68.202
t=0 0
m=audio 8000 RTP/AVP 8 0 18 4
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:4 G723/16000
15:53:52 9980611mS CMExtnEvt: v=(null) State, new=Idle old=Idle,0,0,3002: Menu Key Pressed 4:A
15:53:53 9981364mS CMExtnEvt: v=(null) State, new=Idle old=Idle,0,0,3002: Menu Key Pressed 4:A
15:53:53 9981365mS CMCallEvt: 0000000000000000 0.134218995.0 -1 BaseEP: NEW CMEndpoint f5bbd5b4 TOTAL NOW=1 CALL_LIST=0
15:53:53 9981365mS CMCallEvt: 0000000000000000 0.134218995.0 -1 Extn3002.-1: NEW CMExtnEndpoint f5bbd5b4, Name=Extn3002, Extn=3002, Phys Extn=3002
15:53:53 9981366mS CMCallEvt: CREATE CALL:80 (f5bbc6b4)
15:53:53 9981366mS CMCallEvt: 0000000000000000 0.134218996.0 -1 BaseEP: NEW CMEndpoint f5641ac4 TOTAL NOW=2 CALL_LIST=0
15:53:53 9981367mS CMExtnEvt: Extn3002: CMExtnHandler::SetCurrent( id: 0->134218995 )
15:53:53 9981369mS CMExtnRx: v=3002, p1=0
CMSetup
Line: type=SIPLine 260 Call: lid=252 id=134218995 in=0
Called[9582135463] Type=Default (100) Reason=CMDRdirect SndComp Calling[3002] Type=Internal Plan=Default
BC: CMTC=Speech CMTM=CallIndSigCon CMTR=64 CMST=Default CMU1=ALaw
IE CMIEFastStartInfoData (6) 10 item(s)
IE CMIECallingPartyName (110)(Type=CMNameInternalUser) name=Extn3002
IE CMIEDtmf (209) CMIEDtmf oob 1, txp 101, rxp 101, fmtp = <null>, misc 3 (misc oob 0 misc rfc2833 0 prio oob 1 prio rfc2833 1)
IE CMIECallingPartyKName (226)(Type=CMNameDefault) name=Extn3002
15:53:53 9981370mS CMCallEvt: c0a8c905080004f3 252.134218995.0 80 Extn3002.0: StateChange: END=A CMCSIdle->CMCSDialInitiated
15:53:53 9981370mS CMExtnEvt: v=0 State, new=Dialling old=Idle,0,0,Extn3002
15:53:53 9981371mS CMTARGET: c0a8c905080004f3 252.134218995.0 80 Extn3002.0: LOOKUP CALL ROUTE: GID=0 type=100 called_party=9582135463 sub= calling=3002 calling_sub= dir=out complete=1 ses=0
15:53:53 9981371mS CMTARGET: c0a8c905080004f3 252.134218995.0 80 Extn3002.0: ADD TARGET (N): number=9582135463 type=100 depth=1 nobar=1 setorig=1 ses=0
15:53:53 9981371mS CMTARGET: c0a8c905080004f3 252.134218995.0 80 Extn3002.0: SYS SC: 9582135463 2 582135463 sc=type=Dial code=9N, num=N callinfop->sending_complete=1 secondary_dialtone=
15:53:53 9981372mS CMARS: FindActiveARSByGroupID GroupID=50 - Found
15:53:53 9981372mS CMARS: MakeCallTarget - Called Number: 582135463
15:53:53 9981372mS CMCallEvt: 0000000000000000 0.134218997.0 -1 BaseEP: NEW CMEndpoint f19bba20 TOTAL NOW=3 CALL_LIST=1
15:53:53 9981373mS CMTARGET: c0a8c905080004f3 252.134218995.0 80 Extn3002.0: INITIAL TARGETING SUCCEEDED
15:53:53 9981373mS CMTARGET: c0a8c905080004f3 252.134218995.0 80 Extn3002.0: GetNoAnswerTimer:15
15:53:53 9981374mS CMCallEvt: c0a8c905080004f3 252.134218995.0 80 Extn3002.0: StateChange: END=A CMCSDialInitiated->CMCSDialled
15:53:53 9981374mS CMExtnEvt: v=0 State, new=Proceeding old=Dialling,0,0,Extn3002
15:53:53 9981376mS CMExtnTx: v=3002, p1=0
CMProceeding
Line: type=SIPLine 260 Call: lid=252 id=134218995 in=0
IE CMIEDtmf (209) CMIEDtmf oob 1, txp 101, rxp 101, fmtp = <null>, misc 3 (misc oob 0 misc rfc2833 0 prio oob 1 prio rfc2833 1)
Timed: 01/07/24 15:53
15:53:53 9981376mS CMCallEvt: 0000000000000000 0.134218996.0 80 TargetingEP: StateChange: END=B CMCSIdle->CMCSOffering
15:53:53 9981377mS CMCallEvt: 0000000000000000 0.134218997.0 80 ARS for Main: StateChange: END=T CMCSIdle->CMCSOffering
15:53:53 9981377mS CMCallEvt: 0000000000000000 0.134218996.0 80 TargetingEP: RequestEnd 0000000000000000 0.134218997.0 80 ARS for Main
15:53:53 9981377mS CMTARGET: c0a8c905080004f3 252.134218995.0 80 Extn3002.0: CancelTimer CMTCNoAnswerTimeout
15:53:53 9981378mS CMCallEvt: 0000000000000000 0.134218997.0 80 ARS for Main: StateChange: END=B CMCSOffering->CMCSOverlapRecv
15:53:53 9981379mS CMARS: FORM: Main - Received Number: 582135463
15:53:53 9981379mS CMARS: FOUND A SHORT CODE - short_code: N; - Tel: +966N - Called_Party: +966582135463 - Line Group Id: 100
15:53:53 9981379mS CMARS: SetCurrentTarget: Short_Code: N; - Line_Group_ID: 100
15:53:53 9981379mS CMARS: FindActiveARSByGroupID GroupID=100 - Not Found
15:53:53 9981379mS CMLRQ: FindActiveLRQByGroupID GroupID=100 - Not Found
15:53:53 9981380mS CMCallEvt: 0000000000000000 0.134218998.0 -1 BaseEP: NEW CMEndpoint f538e2c8 TOTAL NOW=4 CALL_LIST=1
15:53:53 9981385mS CMARS: ModifyCMARSTarget: Short_Code: N; - Line_Group_ID: 100 set line status to CMARS_TRYING
15:53:53 9981386mS CMARS: FOUND LINE - Line Id: 17 - using line group id: 100 (code N;, line 100) - Called Number: +966582135463 - Calling Number: 3002
15:53:53 9981386mS CMARS: SEND Setup TO LINE
15:53:53 9981386mS CMCallEvt: c0a8c905080004f6 17.134218998.0 80 SIPTrunk Endpoint: StateChange: END=child CMCSIdle->CMCSOffering
15:53:53 9981387mS CMLineTx: v=0
CMSetup
Line: type=SIPLine 17 Call: lid=17 id=134218998 in=0
Called[+966582135463] Type=Default (100) Reason=CMDRdirect SndComp Calling[3002] Type=Internal Plan=Default
BC: CMTC=Speech CMTM=CallIndSigCon CMTR=64 CMST=Default CMU1=ALaw
IE CMIESupplementaryService (3)
Network Facility Extension
sourceEntity: 0
destinationEntity: 0
Interpretation APDU
discardAnyUnrecognisedInvokePdu
CallingName.Invoke.CodePageISO8859-1
invokeId 14672
user 'Extn3002' presentation Allowed
IE CMIEFastStartInfoData (6) 4 item(s)
IE CMIECallingPartyName (110)(Type=CMNameInternalUser) name=Extn3002
IE CMIECallingPartyKName (226)(Type=CMNameDefault) name=Extn3002
IE CMIERespondingPartyName (228)(Type=CMNameInternalUser) name=Extn3002
IE CMIERespondingPartyKName (229)(Type=CMNameDefault) name=Extn3002
IE CMIERespondingPartyNumber (230)(P:100 S:100 T:101 N:100 R:4) number=3002
IE CMIEDeviceDetail (231) c0a8c905080004f3 LOCALE=ara HW=15 VER=11 class=CMDeviceSIPPhone type=180 number=10 channel=0 features=0x20110420 rx_gain=32 tx_gain=32
ep_callid=134218995 ipaddr=192.168.201.5 apps=0 loc=0 em_a_loc=0 em_d_loc=0 features2=0x20 is_spcall=0 ignores_dtmf=1
avgsid=<>
IE CMIEMohSourceId (247) MOH Source = 255
IE CMIESecurityData (253) 2 item(s)
CMSecurityElement RX_ONLY {
CMSRTPCryptoCapability none
Codecs list (size 2)
}
CMSecurityElement TX_ONLY {
CMSRTPCryptoCapability none
Codecs list (size 2)
}
Locale: ara
15:53:53 9981390mS SIP Tx: UDP 10.170.68.202:5060 -> 10.200.7.157:5060
INVITE sip:+966582135463@fmc.stc.com.sa SIP/2.0
Via: SIP/2.0/UDP 10.170.68.202:5060;rport;branch=z9hG4bK6b3eba2036bb22e8f4e3f838794cb666
From: "+9661110145084@fmc.stc.com.sa" <sip:Extn3002@fmc.stc.com.sa>;tag=15f3620f477608d1
To: <sip:+966582135463@fmc.stc.com.sa>
Call-ID: 7e9ec85c6f3cf6b2e1ab4f1f3a46eca9
CSeq: 1338449978 INVITE
Contact: "+9661110145084@fmc.stc.com.sa" <sip:Extn3002@10.170.68.202:5060;transport=udp>
Max-Forwards: 70
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,REFER,NOTIFY,UPDATE
Supported: timer,100rel
User-Agent: IP Office 11.1.3.1.0 build 34
Content-Type: application/sdp
Content-Length: 229

v=0
o=UserA 2989736298 590699467 IN IP4 10.170.68.202
s=Session SDP
c=IN IP4 10.170.68.202
t=0 0
m=audio 46750 RTP/AVP 8 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
15:53:53 9981391mS CMCallEvt: 0000000000000000 0.134218996.0 -1 TargetingEP: StateChange: END=X CMCSOffering->CMCSDelete
15:53:53 9981392mS CMCallEvt: 0000000000000000 0.134218996.0 -1 BaseEP: DELETE CMEndpoint f5641ac4 TOTAL NOW=3 CALL_LIST=1
15:53:53 9981414mS SIP Rx: UDP 10.200.7.157:5060 -> 10.170.68.202:5060
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.170.68.202:5060;branch=z9hG4bK6b3eba2036bb22e8f4e3f838794cb666;rport=5060
Call-ID: 7e9ec85c6f3cf6b2e1ab4f1f3a46eca9
From: "+9661110145084@fmc.stc.com.sa"<sip:Extn3002@fmc.stc.com.sa>;tag=15f3620f477608d1
To: <sip:+966582135463@fmc.stc.com.sa>
CSeq: 1338449978 INVITE
Content-Length: 0

15:53:53 9981417mS CMLineRx: v=0
CMProceeding
Line: type=SIPLine 17 Call: lid=17 id=134218998 in=0
Called[] Type=Default (100) Reason=CMDRdirect Calling[3002] Type=Internal Plan=Default
IE CMIERespondingPartyNumber (230)(P:100 S:100 T:0 N:100 R:4) number=9582135463
IE CMIEDeviceDetail (231) c0a8c905080004f6 LOCALE=ara HW=15 VER=11 class=CMDeviceSIPTrunk type=0 number=17 channel=1 features=0x1 rx_gain=32 tx_gain=32
ep_callid=134218998 ipaddr=192.168.201.5 apps=0 loc=999 em_a_loc=999 em_d_loc=0 features2=0x0 is_spcall=1 ignores_dtmf=0
avgsid=<>
15:53:53 9981417mS CMARS: LINE ep Received: CMProceeding - child->state = CMCSOffering - ARS Call State = CMCSOverlapRecv
15:53:53 9981417mS CMCallEvt: c0a8c905080004f6 17.134218998.0 80 SIPTrunk Endpoint: StateChange: END=child CMCSOffering->CMCSAccept
15:53:53 9981417mS CMCallEvt: c0a8c905080004f3 0.134218997.0 80 ARS for Main: StateChange: END=B CMCSOverlapRecv->CMCSAccept
15:53:53 9981440mS SIP Rx: UDP 10.200.7.157:5060 -> 10.170.68.202:5060
OPTIONS sip:10.170.68.202:5060 SIP/2.0
Via: SIP/2.0/UDP 10.200.7.157:5060;branch=z9hG4bKbzr11o1oaxa2arxaro5949biz;Role=3;Hpt=8fa8_16;TRC=ffffffff-ffffffff;pth=0;X-HwDim=4
Call-ID: iozzyi15i5s99pi591b595222s5r0i4o@157.7.200.10
From: <sip:SBC@10.200.7.157>;tag=4p4y5syy
To: <sip:10.170.68.202>
CSeq: 1 OPTIONS
Contact: <sip:10.200.7.157:5060;transport=udp;Hpt=13c4_16>;expires=65535
Accept: application/sdp
Max-Forwards: 70
Content-Length: 0

15:53:53 9981444mS SIP Tx: UDP 10.170.68.202:5060 -> 10.200.7.157:5060
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.200.7.157:5060;branch=z9hG4bKbzr11o1oaxa2arxaro5949biz;Role=3;Hpt=8fa8_16;TRC=ffffffff-ffffffff;pth=0;X-HwDim=4
From: <sip:SBC@10.200.7.157>;tag=4p4y5syy
Call-ID: iozzyi15i5s99pi591b595222s5r0i4o@157.7.200.10
CSeq: 1 OPTIONS
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,REFER,NOTIFY,UPDATE
Supported: timer
Server: IP Office 11.1.3.1.0 build 34
Content-Type: application/sdp
To: <sip:10.170.68.202>;tag=ef07e4163564be76
Content-Length: 244

v=0
o=UserA 1102892062 294122925 IN IP4 10.170.68.202
s=Session SDP
c=IN IP4 10.170.68.202
t=0 0
m=audio 8000 RTP/AVP 8 0 18 4
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:4 G723/16000
15:53:54 9982723mS RES: Mon 1/7/2024 15:53:55 FreeMem=58941896 Heap=58731512(7) Cache=210384 MemObjs=7712(Max 8713) CMMsg=6(7) ASN=0 Buff=5200 1361 1000 7444 5 Links=51599(51646) BTree=266(411) CB=6054 MCT=0 CPU=04.48% CPUStats=10.80%/35/45/6329/18645
/21698/00.09%/1/02.55% MCR=0 MCW=0 DEV=0
15:53:54 9982723mS RES2: IP 500 V2A 11.1.3.1.0 build 34 Tasks=54 RTEngine=0 CMRTEngine=0 ExRTEngine=0 Timer=11+65 Poll=0 Ready=0 CMReady=0 CMQueue=0 VPNNQueue=0 Monitor=1 SSA=2 TCP=28(TLS=8 OFF=0) TAPI=0 Partner=0 ASC=1 SYS=MNTD OPT=UMNT SDSPD=2034
15:53:54 9982723mS RES4: XML MemObjs=8 PoolMem=4748404(2) FreeMem=4736284(0) HeapUsed=0
15:53:54 9982723mS RES5: CLog MemObjs=27 FreePoolMem(Objs)=4088(73) TotalMem=5600 StringsTotalMem=80150
15:53:55 9983465mS SIP Rx: UDP 10.200.7.157:5060 -> 10.170.68.202:5060
OPTIONS sip:10.170.68.202:5060 SIP/2.0
Via: SIP/2.0/UDP 10.200.7.157:5060;branch=z9hG4bKebx878663s332use568bs33x5;Role=3;Hpt=8fb8_16;TRC=ffffffff-ffffffff;pth=0;X-HwDim=4
Call-ID: r13rurux14sl523x7268e13lk37r2b11@157.7.200.10
From: <sip:SBC@10.200.7.157>;tag=u21ul5x7
To: <sip:10.170.68.202>
CSeq: 1 OPTIONS
Contact: <sip:10.200.7.157:5060;transport=udp;Hpt=13c4_16>;expires=65535
Accept: application/sdp
Max-Forwards: 70
Content-Length: 0

15:53:55 9983469mS SIP Tx: UDP 10.170.68.202:5060 -> 10.200.7.157:5060
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.200.7.157:5060;branch=z9hG4bKebx878663s332use568bs33x5;Role=3;Hpt=8fb8_16;TRC=ffffffff-ffffffff;pth=0;X-HwDim=4
From: <sip:SBC@10.200.7.157>;tag=u21ul5x7
Call-ID: r13rurux14sl523x7268e13lk37r2b11@157.7.200.10
CSeq: 1 OPTIONS
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,REFER,NOTIFY,UPDATE
Supported: timer
Server: IP Office 11.1.3.1.0 build 34
Content-Type: application/sdp
To: <sip:10.170.68.202>;tag=1a33c7ac36c595f0
Content-Length: 245

v=0
o=UserA 2829985868 2713456497 IN IP4 10.170.68.202
s=Session SDP
c=IN IP4 10.170.68.202
t=0 0
m=audio 8000 RTP/AVP 8 0 18 4
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:4 G723/16000
15:53:57 9985498mS SIP Rx: UDP 10.200.7.157:5060 -> 10.170.68.202:5060
OPTIONS sip:10.170.68.202:5060 SIP/2.0
Via: SIP/2.0/UDP 10.200.7.157:5060;branch=z9hG4bKzusj849482j297s0jsa4azjsb;Role=3;Hpt=8fc8_16;TRC=ffffffff-ffffffff;pth=0;X-HwDim=4
Call-ID: as4474j66zbsr6zuqjr870r97a2zqj4r@157.7.200.10
From: <sip:SBC@10.200.7.157>;tag=z7zab20s
To: <sip:10.170.68.202>
CSeq: 1 OPTIONS
Contact: <sip:10.200.7.157:5060;transport=udp;Hpt=13c4_16>;expires=65535
Accept: application/sdp
Max-Forwards: 70
Content-Length: 0

15:53:57 9985502mS SIP Tx: UDP 10.170.68.202:5060 -> 10.200.7.157:5060
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.200.7.157:5060;branch=z9hG4bKzusj849482j297s0jsa4azjsb;Role=3;Hpt=8fc8_16;TRC=ffffffff-ffffffff;pth=0;X-HwDim=4
From: <sip:SBC@10.200.7.157>;tag=z7zab20s
Call-ID: as4474j66zbsr6zuqjr870r97a2zqj4r@157.7.200.10
CSeq: 1 OPTIONS
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,REFER,NOTIFY,UPDATE
Supported: timer
Server: IP Office 11.1.3.1.0 build 34
Content-Type: application/sdp
To: <sip:10.170.68.202>;tag=e72596faec2360c1
Content-Length: 244

v=0
o=UserA 1692645063 808260866 IN IP4 10.170.68.202
s=Session SDP
c=IN IP4 10.170.68.202
t=0 0
m=audio 8000 RTP/AVP 8 0 18 4
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:4 G723/16000
15:53:59 9987531mS SIP Rx: UDP 10.200.7.157:5060 -> 10.170.68.202:5060
OPTIONS sip:10.170.68.202:5060 SIP/2.0
Via: SIP/2.0/UDP 10.200.7.157:5060;branch=z9hG4bK0eszekhvdfkvfk1vez8ftr2z1;Role=3;Hpt=8fd8_16;TRC=ffffffff-ffffffff;pth=0;X-HwDim=4
Call-ID: kterz22h18frdt18sdv1f8sht2hhet00@157.7.200.10
From: <sip:SBC@10.200.7.157>;tag=tehuer28
To: <sip:10.170.68.202>
CSeq: 1 OPTIONS
Contact: <sip:10.200.7.157:5060;transport=udp;Hpt=13c4_16>;expires=65535
Accept: application/sdp
Max-Forwards: 70
Content-Length: 0

15:53:59 9987535mS SIP Tx: UDP 10.170.68.202:5060 -> 10.200.7.157:5060
SIP/2.0 200 OK
Via: SIP/2.0/UDP

 

[derfloh]

15:53:53 9981390mS SIP Tx: UDP 10.170.68.202:5060 -> 10.200.7.157:5060
INVITE sip:+966582135463@fmc.stc.com.sa SIP/2.0
Via: SIP/2.0/UDP 10.170.68.202:5060;rport;branch=z9hG4bK6b3eba2036bb22e8f4e3f838794cb666
From: "+9661110145084@fmc.stc.com.sa" <sip:[highlight #FCE94F]Extn3002[/highlight]@fmc.stc.com.sa>;tag=15f3620f477608d1
To: <sip:+966582135463@fmc.stc.com.sa>
Call-ID: 7e9ec85c6f3cf6b2e1ab4f1f3a46eca9
CSeq: 1338449978 INVITE
Contact: "+9661110145084@fmc.stc.com.sa" <sip:[highlight #FCE94F]Extn3002[/highlight]@10.170.68.202:5060;transport=udp>
Max-Forwards: 70
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,REFER,NOTIFY,UPDATE
Supported: timer,100rel
User-Agent: IP Office 11.1.3.1.0 build 34
Content-Type: application/sdp
Content-Length: 229


I don't see any response to the call after the provider sent the SIP Trying message. Why... that must ba answered by the provider. Nevertheless... It will not work as long as you send Extn3002 as caller ID and within Contact header.

IP Office remote service
IP Office certificate check
CLI based call blocking
SCN fallback over PSTN