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Beginner

SIP trunk - how to retry on 5xx response codes? [CUCM 7.x / 8.x]

Hi,

The scenario is a CUCM with two SIP trunks towards a 3rd party gateway.

By default reroute occurs when the SIP response code from the remote gateway is 503, but not when the code is another value in the 5xx class.

Is it possible to explicitly define the response codes on which the CUCM should reroute the INVITE to other SIP trunks?

Thanks.

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Cisco Employee

SIP trunk - how to retry on 5xx response codes? [CUCM 7.x / 8.x]

A quick look at the return codes that CUCM will handle, only 503 returns a value that will cause a reroute to another gateway.  There is no way for an administrator to define additional return codes for reroute.  What other 5xx codes are you looking for CUCM to reroute the call? 

Thanks,

Dan Keller

Technical Marketing Engineer

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