[SIPForum-discussion] Calling number without CLIP

Thu Nov 12 20:28:34 UTC 2009

Hello All,

I am sorry if I am posting this in a wrong place.

I have the following issue.

Incoming SIP trunk from the service provider.
When a BLOCKED ID call comes in, it is possible to answer, but a transfer or blind-transfer to a local extension will not work:

The extension rings, it shows "UNKNOWN", the extension can pickup, there is a one way audio from the extension to the external caller, then the call gets disconnected after 5 seconds.

Any advice will be of great help. Below is the content of trace on the trunk.
ACK sip:anonymous at 172.30.201.22:5071;transport=udp SIP/2.0
Contact: sip:172.20.42.10
User-Agent: ABS GW v5.1.0
To: sip:anonymous at anonymous.invalid;tag=718911255-1256146430722-
From: sip:2124925275 at primary.related.globalipcom.com;tag=48383848cbd39b9d4a45aa8f21a744a0
Call-ID: BW1333507222110091092844317 at 65.211.120.238
CSeq: 1747889285 ACK
Via: SIP/2.0/UDP 172.20.42.10;branch=z9hG4bK8c40d538834bf1a0db14d84b5b1255ca
Max-Forwards: 70
Content-Length: 0

-------------------------------------------------
1256146442 -> RECEIVE MESSAGE FROM NETWORK (172.30.201.22:53011 [UDP])
----------------------utf8-----------------------
SIP/2.0 200 OK
To: <sip:2122145471 at 172.30.201.22:5071;user=phone>;tag=175557147-1256146430800
From: "Digrillioni Alfr" <sip:2124925249 at 172.20.42.10>;tag=55cc7f25a049f1be9576d95c703b1380
Call-ID: 191673d4cd92f0b0de8dd10e77f82b74 at 172.20.42.10
CSeq: 163323327 INVITE
Via: SIP/2.0/UDP 172.20.42.10;branch=z9hG4bK8311820cdb186980522c974497309528
Supported: 
Contact: <sip:2122145471 at 172.30.201.22:5071;transport=udp>
Allow: ACK,BYE,CANCEL,INFO,INVITE,OPTIONS,PRACK,REFER,NOTIFY
Accept: multipart/mixed,application/media_control+xml,application/sdp
Content-Type: application/sdp
Content-Length: 207

v=0
o=BroadWorks 8576520 1 IN IP4 172.30.201.132
s=-
c=IN IP4 172.30.201.132
t=0 0
m=audio 12848 RTP/AVP 18 0 8 101
a=ptime:20
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
-------------------------------------------------

1256146442 -> [receiveSuccessfulMessage] Call: 191673d4cd92f0b0de8dd10e77f82b74 at 172.20.42.10 eqt: 1775 PROCEEDING_STATE received a message.
1256146442 -> 1175[CMotorCall::emitEventToMonitel] content size (lginfo): 652
1256146442 -> 1175[CMotorCall::emitEventToMonitel] CAC = 0 eqtCAC = -1 
1256146442 -> 1175[CMotorCall::emitEventToMonitel] CAC = 0 
1256146442 -> 1175[CMotorCall::emitEventToMonitel] Event sent on eqt : 1775
1256146442 -> [display_ipc_out] ------------ Begin ---------------
1256146442 -> SUCCESSFUL
1256146442 -> xx :        0
1256146442 ->     RELATIVE REQUEST : INVITE
1256146442 -> CLIR : 0
1256146442 -> COLP : 0
1256146442 -> SDP :
1256146442 ->   ADDRESS : 172.30.201.132 :12848
1256146442 ->   ALGOS :
1256146442 ->     G729
1256146442 ->     PCMU
1256146442 ->     PCMA
1256146442 ->     101
1256146442 ->   DIRECTION : SEND & RECEIVE
1256146442 -> [display_ipc_out] ------------- End ----------------
1256146442 -> [exec_ipc] in.
1256146442 -> [display_ipc_in] ------------ Begin ---------------
1256146442 -> neqt : 1775
1256146442 -> ACK
1256146442 -> [display_ipc_in] ------------- End ----------------
1256146442 -> [CMotorCallManager::onIncomingEvent] an event 10754 arrived on the eqt 1775.
1256146442 -> [CMotorCallManager::onIncomingEvent] state = ACCEPTED_STATE.
1256146442 -> [onIncomingEvent] ACK arrived.
1256146442 -> [receiveAckEvent] Call: 191673d4cd92f0b0de8dd10e77f82b74 at 172.20.42.10 eqt: 1775 ACCEPTED_STATE received an event.
1256146442 -> 1175[CMotorCall::emitAckMessage] SDP ok.
1256146442 -> SEND MESSAGE TO NETWORK (172.30.201.22:5071 [UDP]) (BUFF LEN = 482)
ACK sip:anonymous at 172.30.201.22:5071;transport=udp SIP/2.0
Contact: sip:172.20.42.10
User-Agent: ABS GW v5.1.0
To: sip:anonymous at anonymous.invalid;tag=718911255-1256146430722-
From: sip:2124925275 at primary.related.globalipcom.com;tag=48383848cbd39b9d4a45aa8f21a744a0
Call-ID: BW1333507222110091092844317 at 65.211.120.238
CSeq: 1747889285 ACK
Via: SIP/2.0/UDP 172.20.42.10;branch=z9hG4bK8c40d538834bf1a0db14d84b5b1255ca
Max-Forwards: 70
Content-Length: 0

----------------------utf8-----------------------
INVITE sip:2124925275 at 172.20.42.10:5060 SIP/2.0
Via: SIP/2.0/UDP 172.30.201.22:5071;branch=z9hG4bK5a16pv20d02hts80b741.1
From: "Anonymous"<sip:anonymous at anonymous.invalid>;tag=718911255-1256146430722-
To: "12124925275 12124925275"<sip:2124925275 at primary.related.globalipcom.com>
Call-ID: BW1333507222110091092844317 at 65.211.120.238
CSeq: 1007990146 INVITE
Contact: <sip:anonymous at 172.30.201.22:5071;transport=udp>
Allow: ACK,BYE,CANCEL,INFO,INVITE,OPTIONS,PRACK,REFER,NOTIFY
Accept: multipart/mixed,application/media_control+xml,application/sdp
Supported: 
Max-Forwards: 69
Content-Type: application/sdp
Content-Length: 207

v=0
o=BroadWorks 8576561 1 IN IP4 172.30.201.132
s=-
c=IN IP4 172.30.201.132
t=0 0
m=audio 13108 RTP/AVP 18 0 8 101
a=ptime:20
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15

SIP/2.0 100 Trying
To: "12124925275 12124925275" <sip:2124925275 at primary.related.globalipcom.com>
From: "Anonymous" <sip:anonymous at anonymous.invalid>;tag=718911255-1256146430722-
Call-ID: BW1333507222110091092844317 at 65.211.120.238
CSeq: 1007990146 INVITE
Via: SIP/2.0/UDP 172.30.201.22:5071;branch=z9hG4bK5a16pv20d02hts80b741.1
Content-Length: 0

Thanks and Regards

Sharma

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