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Calling Name being stripped from SIP headers

JamesHawkins
Level 1
Level 1

Hello,

I have a customer with CUCM 14SU1. They have recently purchased a VG410 which has 48 FXS ports which connect analog phones at one of their sites.

The VG410 is not supported as an SCCP gateway until CUCM 14SU3 so I have set it up with dial peers and used a SIP trunk to integrate with CUCM. There are Route Patterns on CUCM point to the gateway via a Route List--Route Group--SIP Trunk.

This works ok for two way calling but when a call is received on an IP phone the user only sees the calling number and not the name.

This is expected and to try to solve it I have configured a SIP profile on the VG410 to add a calling name to the From and Contact SIP headers.

When an analogue phone connected to a gateway FXS port calls an IP phone registered to CUCM I can see via RTMT live trace that the received SIP Invite contains the name information that was added by the gateway SIP profile - see below.

From: "Test Analog" <sip:5108426@10.0.20.200>;tag=67C42CC-1527

When CUCM sends an outbound invite to the IP phone this info has been stripped and just the number is included - see below.

From: <sip:5108426@10.0.10.200>;tag=2576~a259cc57-8f8b-4a63-9eea-d6747fe8696d-30524678

Is there some way of getting CUCM to pass the name information in the outbound Invite to the phone?

 

1 Accepted Solution

Accepted Solutions

As I responded to your other thread related to this you’ll need to modify more than just the From field for it to show.

https://community.cisco.com/t5/ip-telephony-and-phones/presenting-calling-name-on-ip-phones-for-calls-from-sip-analogue/m-p/5220483#M417504



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3 Replies 3

Jonathan Schulenberg
Hall of Fame
Hall of Fame

Does the INVITE received by CUCM from the VG also include a P-Asserted-Identity or Remote-Party-ID header? Those will preempt the From header if present.

As I responded to your other thread related to this you’ll need to modify more than just the From field for it to show.

https://community.cisco.com/t5/ip-telephony-and-phones/presenting-calling-name-on-ip-phones-for-calls-from-sip-analogue/m-p/5220483#M417504



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JamesHawkins
Level 1
Level 1

Thanks both,

As suggested by Roger I had to modify the Remote-Party-ID to get the name information passed through to CUCM Invites. Modifying just that causes CUCM to use the name in both the From: and Remote-Party-ID: headers.

Thanks again for pointing me in the right direction.