topic Change Caller-id from SIP-TRUNK CME in IP Telephony and Phones

Change Caller-id from SIP-TRUNK CME

Krzysztof Jablonski — Thu, 15 Apr 2021 08:00:30 GMT

Dear All.

I have trouble with identifying by name for incoming connections comming from siptrunk. We have two PBX connected, Cisco CME - for desk phones (SIP Phones only) and Uniify OpenScape Business V2 for DECT calls. The problem is that Unify PBX only transmits the number (3 digits) via SIP-Trunk and this is displayed on the phone. I would like the name to be displayed. We have no chance to set it on Unify PBX. Below is a typical SIP header during an internal call from 551 to 524.

Can I configure Cisco CME to substitute the string - warehouse - instead of 551, even though it is an incoming call from another PBX ?

Apr 15 07:09:59.970: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
INVITE sip:524@10.33.99.221:5060 SIP/2.0
Via: SIP/2.0/UDP 10.10.12.10;branch=z9hG4bK2479242e13c932bc4;rport
Max-Forwards: 70
From: 551 <sip:551@10.33.99.221>;tag=4e8d957fb0
To: <sip:524@10.33.99.221>
Call-ID: 9800750db570e686
CSeq: 1822707770 INVITE
Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REGISTER, INFO, UPDATE
Contact: <sip:551@10.10.12.10>
P-Asserted-Identity: <sip:551@10.33.99.221>
User-Agent: OpenScape Business M5T SIP Stack/4.2.12.14
X-Siemens-Call-Type: ST-insecure
Content-Type: application/sdp
Content-Length: 324

Full SIP log attached as a file

Re: Change Caller-id from SIP-TRUNK CME

Roger Kallberg — Thu, 15 Apr 2021 11:04:13 GMT

Yes that is possible. For this you would need to use a SIP profile used in the inbound direction on the SIP trunk to the CME from Unify. Please note that it would need do this per directory number, so it's not a very scalable solution. See below for an example for the number given.

voice class sip-profiles 200
 request ANY sip-header From modify "From: 551 (<sip:.*@.*>)" "From: Warehouse \1"
 response ANY sip-header From modify "From: 551 (<sip:.*@.*>)" "From: Warehouse \1"
! 
voice service voip
 sip
  sip-profiles inbound
!
dial-peer voice <tag> voip
 voice-class sip profiles 200 inbound

You can test this with the SIP profile tester at this link.

Re: Change Caller-id from SIP-TRUNK CME

Krzysztof Jablonski — Thu, 22 Apr 2021 05:19:31 GMT

Thank you Roger - you answer was very useful, my problem is fixed !

Re: Change Caller-id from SIP-TRUNK CME

Roger Kallberg — Thu, 22 Apr 2021 05:45:55 GMT

Glad to hear that and thank you for your letting us know that it worked for you.

Re: Change Caller-id from SIP-TRUNK CME

ahmed.taha@zfod.eni.com — Thu, 06 Oct 2022 08:50:00 GMT

we have cme on 2951 that serves both IP and analog phones, with IP phones everything goes fine regarding caller name, but if we make a call from an analog to an IP phone only a number appears, can we add a name to the analog phone to have appeared as caller id.

Re: Change Caller-id from SIP-TRUNK CME

Roger Kallberg — Thu, 06 Oct 2022 10:35:53 GMT

ahmed.taha@zfod.eni.com Advice you to create your own post to ask your question as this one is marked as solved and your question is somewhat off topic to the OP.