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New Member

SIP Refer on 2911 Voice Gateway

Hi guys,

I have a client who is using 2911 as the voice gateway which is connecting between Nortel and SIP Server.

The PSTN calls made by SIP Phones use 2911 to route calls to Nortel (which is connected to 2911 through PRI).

They are also using an IVR application which is running off SIP server as well.

The issue as blind transfer between SIP and Nortel is not working.

I did a 'debug ccsip messages'.

Here is what is standing out in my debugs:

Sent:

NOTIFY sip:8971@192.168.4.11:5060 SIP/2.0 <-- 8971 is the number that i dialed. It exists on IVR and it does a blind transfer to my cell phone. 192.168.4.11 is the voice gateway.

Via: SIP/2.0/UDP 192.168.4.241:5060;branch=z9hG4bK4D270 <-- 192.168.4.241 is the 3rd party SIP server.

From: <sip:1180@192.168.4.241>;tag=EE9D3918-37E  <-- 1180 is the number on Nortel side. Its my calling number.

To: "Voice Server on pos-ipcm"<sip:8971@pos-ipcm.xyz.com>;tag=2a5ba710

Call-ID: A7752611-D41611E1-9A8CCB82-FEC7DE00@192.168.4.241

CSeq: 103 NOTIFY

Max-Forwards: 70

Date: Mon, 23 Jul 2012 16:02:36 GMT

User-Agent: Cisco-SIPGateway/IOS-12.x

Event: refer

Subscription-State: terminated;reason=noresource

Contact: <sip:1180@192.168.4.241:5060>

Content-Type: message/sipfrag

Content-Length: 35

SIP/2.0 503 Service Unavailable


Any help in solving this would be appreciated.

Everyone's tags (6)
6 REPLIES
New Member

SIP Refer on 2911 Voice Gateway

Hi !

Is any Q931 cause code you able to get in this debug ?

you can enable the debug ccsip info for more details...

Thanks

New Member

SIP Refer on 2911 Voice Gateway

Looks like normal call clearing on Q931.

Jul 23 16:02:36.562: ISDN Se0/0/0:23 Q931: TX -> DISCONNECT pd = 8  callref = 0x8017

        Cause i = 0x8290 - Normal call clearing

New Member

SIP Refer on 2911 Voice Gateway

Sorry, Actually I also see the following on the debug:

        Channel ID i = 0xE9808316

                Exclusive, Interface 0, Channel 22

Jul 23 16:02:36.338: ISDN Se0/0/0:23 Q931: RX <- CALL_PROC pd = 8  callref = 0x92D4

        Channel ID i = 0xE9808316

                Exclusive, Interface 0, Channel 22

Jul 23 16:02:36.506: ISDN Se0/0/0:23 Q931: RX <- DISCONNECT pd = 8  callref = 0x92D4

        Cause i = 0x819D - Facility rejected

Hall of Fame Super Gold

SIP Refer on 2911 Voice Gateway

You need to post the entitre trace for failure case, not just fragments.

New Member

Re: SIP Refer on 2911 Voice Gateway

The whole debug is attached.

Hall of Fame Super Gold

SIP Refer on 2911 Voice Gateway

To make it short, cisco makes a call for 94168268250 to PBX, that is rejected.

Is PBX configured to allow calls to that number ? Check with PBX technicians.

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