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-   -   IP Office not sending PAI over SIP trunk to Cisco UCM (http://support.avaya.com/forums/showthread.php?t=3672)

flemig 09-13-2013 04:27 PM

IP Office not sending PAI over SIP trunk to Cisco UCM
Hey guys. I have a SIP trunk between a Cisco UCM cluster and an Avaya IP Office 500 system.

Everything works great except when calling from the Cisco phones to the Avaya phones, the called party name (destination name) does not show up on the Cisco phone. When calling from Avaya to the Cisco phones, the Avaya phone shows the name of the person you are calling. This is done via the P-Asserted-Identity header which is being passed from the Cisco UCM to the Avaya system and being displayed on the Avaya phones. (As far as I am aware, at least).

I cannot figure out how to get the Avaya system to send the PAI header over the SIP trunk for inbound calls. Can anyone please help me out. Below are two snippets of SIP traces from either system for inbound calls.

Calling from Avaya to Cisco UCM (Inbound to Cisco, Cisco replies with PAI in 180):

SIP/2.0 180 Ringing
Via: SIP/2.0/UDP;rport;branch=z9hG4bKPj3SuuV7rduceI20EeEbCRnkr4LXpd5mjI
From: "260" <sip:260@>;tag=3Ovxj7AHdRERMRJPLk98i1yxRskDhU4m
To: <sip:821558@>;tag=fd298c1515c002a3
Call-ID: Odi1wNclBwyS75WWx9tT4FRjC8pnp4zl
CSeq: 29327 INVITE
Contact: "821558" <sip:821558@;transport=udp>
P-Asserted-Identity: "UserX" <sip:821558@>
Supported: timer
Content-Length: 0

(That P-Asserted-Identity field, "UserX" is what gets displayed on the Avaya phone when calling out to Cisco).

Calling from Cisco UCM to Avaya (Inbound to Avaya, no PAI info):

SIP/2.0 180 Ringing
Via: SIP/2.0/TCP;branch=z9hG4bK458d1604ff9c0
From: "UserX" <sip:821558@>;tag=676646~81ca2ef4-b149-42e4-8577-2d9582cea9ed-31036730
To: <sip:260@>;tag=97d82c787a1a102e
Call-ID: 118ab580-23319a60-42b75-30a020a@
CSeq: 101 INVITE
Contact: "UserY" <sip:260@;transport=tcp>
Supported: timer
Content-Length: 0

(No PAI field information. No Called Name party display on the Cisco phones).

Please help! Thank you..

rmcdou 11-22-2013 07:28 AM

Greetings to All,

I'm having the same issue. I can establish calls between an Avaya IP Office and a Cisco CME, the only problem being is that when the Cisco side call they are getting a display of QSIG-GATEWAY on their phones.

I'm being told that I need to have Send Caller ID set to P Asserted ID which I have but the problem still continues.

Can some please shed some light on the subject.

Thanks in advance

rmcdou 11-22-2013 12:09 PM

Good afternoon Flemig,

What settings do you have your "Call Routing Method" & "send Caller ID" set to?


markgallagher 11-22-2013 12:44 PM

In the SIP URI you can define what information the IP Office should use for the PAI - including not using PAI (the default).

rmcdou 11-22-2013 01:37 PM

Thanks for your reply.

Looking at the SIP URI under the SIP line I see:
Local URI *
Display Name*
PAI Use Internal Data

Please advise.


pitcherj 11-23-2013 05:59 AM

If you have PAI set to "Use Internal Data", I believe it will use what is set in the user SIP field. If there is nothing set there then ..... Try changing it from "Use Internal Data".

rmcdou 11-25-2013 12:48 PM

Thanks for your input.

markgallagher 11-26-2013 05:29 AM

Is that "Thanks, I'll check" or "Thanks, that fixed it"?

rmcdou 11-26-2013 12:20 PM

Sorry about that. That is thanks I'll check. Well, I've checked and and changed but it's a no go. We are working to see if can make it work by using Transparent Tunneling of QSIG on the CUCME, added a couple of lines to the dial peer configuration.

Waiting on sytem reboot on our side since we can't bring down the IPO during normal business hours.


ali127 11-26-2013 11:51 PM

Avaya ip office 500 and Cisco CME
Hi Flemig, could you send send the document how to configure H.323 trunk between Cisco CME and Avaya ip office 500. We need call between them in local extension.

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