Call issues with Callbridge/SIP Trunk CISCO Meeting Server

[KALUZINSKI]

Hello,

We configured a SIP Trunk on 3CX connected to a CallBridge/SIP-Trunk on a Cisco Meeting Server (LAN infrastructure).
Our issue on that configuration is when we call from 3CX to the CallBridge after 30 minutes call a SIP "UPDATE" message is coming from CMS going to 3CX and 3CX answers by SIP message "SIP/2.0 481 Call/Transaction Does Not Exist" and then "BYE".
We saw on CISCO support a communication about a bug which could be linked to the issue :

"SIP session refresh contains "Require:timer" causes call drop
CSCve08295
Description
Symptom:
The Cisco Meeting Server will include a require:timer header in SIP UPDATE messages. This can lead to call drops through some intermediate devices that do not support this feature.

Conditions:
Affects some SBCs and the Avaya session manager."

Could you please inform if this issue communicated by CISCO is known on 3CX or provide other resolution advises ?

I put the call logs in a text file in attached document.

Thanks in advance

 

[KALUZINSKI]

Hi,

We were aware by CISCO Support Team that the bug mentionned above is not impacting Cisco Meeting Server in this case.
If someone know about this issue dropping calls after 30 minutes with CISCO Meeting Server though it could be very helpful

Thanks in advance for your help