This document was generated from CDN thread
Created by: Thomas Kallander on 26-08-2009 08:41:32 PM
I have a question about how CUCM SIP-trunk works with SRV records as destinations. Is it possible to get get forking INIVITEs by setting up equal DNS entries (prio and weight) in the SRV-record? What (SIP) timers can be adjusted to speed up a "failover" to a lower prio destionation i the higer prio destionation host is down?
/Thomas
Subject: RE: SIP-trunk redundancy
Replied by: Giggesh Thekkekeloth on 24-06-2010 02:23:46 PM
no, equal weight in SRV only make AA records have nearly the same chance to be selected. CUCM siptrunk doesn't do fork. You can reduce the service parameter "Retry Count for SIP Invite" to make failover faster. After 8.5 you can use "SIP OPTIONS Ping" feature to skip over unavailable peer.
Subject: Autosvar: New Message from Abdul Rasheed in Cisco Unified Communications Ma
Replied by: Dan-Anders Hook on 16-07-2012 02:45:38 PM
Hi,
I am on vacation and will be back Aug 6.
For urgent matters call my office at +46108787000.
Kind Regards,
//Dan-Anders Höök
Subject: RE: SIP-trunk redundancy
Replied by: Abdul Rasheed on 16-07-2012 02:37:23 PM
Hi Giggesh,
we have the same issue with the fail over configuration. In our case the fail over will happen only after 1 minute. We are using UDP for SIP trunk outgoing traffic. Shall we reduce the Retry count for SIP INVITE for making the failover very fast?
Thanks and Regards
Abdul Rasheed
