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SIP TRUNK

we are using two sip trunks in one CM-cluster , trunk-A and trunk-B.

Both trunks are member of the same route group, the route group is member of one route list. The route pattern is assigned to this route list.

Trunk-B is our SIP-IVR-backup-server, so we stopped the IVR on server-A (with trunk-A) and expected Callmanager to reroute the call to server-B (with trunk-B), but nothing happens.

We took a look at detailed CM traces, CM tries just to reach server-A.

4 REPLIES

SIP TRUNK FAILOVER

James,

You better post this where the voice specialist monitor questions like this one:

https://supportforums.cisco.com/community/netpro/collaboration-voice-video

-Kenny

New Member

Re: SIP TRUNK FAILOVER

You create 2 trunks. Then create a route group to route to both of them. When one of them becomes unreachable Call Manager will automatically fail over to the other trunk.

SIP TRUNK

Mate,

look into OOB pings,  set in the SIP profile that is applied to your particular trunk:

SIP OPTIONS Ping

Required Field
Required Field
Required Field
Required Field

missing OOB ping will cause a trunk to be marked as unavailable


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New Member

SIP TRUNK

If you remove server-A from the RG or reverse the order does it route to server-B?

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