IPO doesn’t send called name to CUCM via SIP trunk

[Diya Freahat]

[ignore][/ignore]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:280@10.10.1.9:5060 SIP/2.0
Via: SIP/2.0/UDP 10.50.52.6:5060;branch=z9hG4bKd14e8134f9
From: "Syed Abdul Rab" <sip:89157@10.50.52.6>;tag=1036~05bdaece-1d90-436a-a3cb-794327bb6db4-21380561
To: <sip:280@10.10.1.9>
Date: Tue, 20 Jun 2023 13:34:39 GMT
Call-ID: 332ec700-1ef12d72-7a-634320a@10.50.52.6
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=telephone-event;Duration=500"
Call-Info: <urn:x-cisco-remotecc:callinfo>;x-cisco-video-traffic-class=DESKTOP
Session-ID: 2c36056300105000a000b07d47d07761;remote=00000000000000000000000000000000
Cisco-Guid: 0858703616-0000065536-0000000072-0104083978
Session-Expires: 1800
P-Asserted-Identity: "Syed Abdul Rab" <sip:89157@10.50.52.6>
Remote-Party-ID: "Syed Abdul Rab" <sip:89157@10.50.52.6>;party=calling;screen=yes;privacy=off
Contact: <sip:89157@10.50.52.6:5060>;+u.sip!devicename.ccm.cisco.com="SEPB07D47D07761"
Max-Forwards: 69
Content-Type: application/sdp
Content-Length: 673

 

[Diya Freahat]

Kindly note that 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
As in the above invite message in the above post for call from IPO to CUCM

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

Is this issue from IPO or CUCM?