Called name via sip trunk between avaya IPO and cisco CUCM

[freihd]

When dial extension from IPO users to cisco cucm users via SIP, IPO users can see called number and name for cisco users on avaya phones but
When dial extension from CUCM users to IPO users, Cisco users see called number without name for IPO users on cisco phones

Is this problem from IPO or CUCM, If from IPO kindly advise


INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 10.50.52.6:5060;branch=z9hG4bKd14e8134f9
From: "Syed Abdul Rab" <sip:[email protected]>;tag=1036~05bdaece-1d90-436a-a3cb-794327bb6db4-21380561
To: <sip:[email protected]>
Date: Tue, 20 Jun 2023 13:34:39 GMT
Call-ID: [email protected]
Supported: timer,resource-priority,replaces
Min-SE: 1800
User-Agent: Cisco-CUCM14.0
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
CSeq: 101 INVITE
Expires: 180
Allow-Events: presence, kpml
Supported: X-cisco-srtp-fallback,X-cisco-original-called
Call-Info: <sip:10.50.52.6:5060>;method="NOTIFY;Event=telepho ne-event;Duration=500"
Call-Info: <urn:x-cisco-remotecc:callinfo>;x-cisco-video-traffic-class=DESKTOP
Session-ID: 2c36056300105000a000b07d47d07761;remote=0000000000 0000000000000000000000
Cisco-Guid: 0858703616-0000065536-0000000072-0104083978
Session-Expires: 1800
P-Asserted-Identity: "Syed Abdul Rab" <sip:[email protected]>
Remote-Party-ID: "Syed Abdul Rab" <sip:[email protected]>;party=calling;screen=yes;pr ivacy=off
Contact: <sip:[email protected]:5060>;+u.sip!devicename.ccm. cisco.com="SEPB07D47D07761"
Max-Forwards: 69
Content-Type: application/sdp
Content-Length: 673

[mlombardi1]

How is the IPO aware of the name assigned to the remote extn as programmed in the CUCM? Is it sent back to the IPO in the 180/183 provisional response?

[freihd]

P-Asserted-Identity & remote-party-id show the extn name in CUCM Instead of the remote extn name in IPO for calls that dial from CUCM to IPO

P-Asserted-Identity & remote-party-id show the remote extn name in CUCM for calls that dial from IPO to CUCM



Is this issue from IPO or CUCM?