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called name between avaya I P office & CUCM via SIP trunk

called name between avaya I P office & CUCM via SIP trunk

called name between avaya I P office & CUCM via SIP trunk

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

RE: called name between avaya I P office & CUCM via SIP trunk

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

INVITE sip:280@ SIP/2.0
Via: SIP/2.0/UDP;branch=z9hG4bKd14e8134f9
From: "Syed Abdul Rab" <sip:89157@>;tag=1036~05bdaece-1d90-436a-a3cb-794327bb6db4-21380561
To: <sip:280@>
Date: Tue, 20 Jun 2023 13:34:39 GMT
Call-ID: 332ec700-1ef12d72-7a-634320a@
Supported: timer,resource-priority,replaces
Min-SE: 1800
User-Agent: Cisco-CUCM14.0
CSeq: 101 INVITE
Expires: 180
Allow-Events: presence, kpml
Supported: X-cisco-srtp-fallback,X-cisco-original-called
Call-Info: <sip:>;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:89157@>
Remote-Party-ID: "Syed Abdul Rab" <sip:89157@>;party=calling;screen=yes;pr ivacy=off
Contact: <sip:89157@>;+u.sip!devicename.ccm. cisco.com="SEPB07D47D07761"
Max-Forwards: 69
Content-Type: application/sdp
Content-Length: 673

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

Is this problem from IPO or CUCM?

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