[cisco-voip] CUCM SIP trunk redundancy with multiple CUBES

[Matthew Huff]

We have two cisco ISR 4331 Cube gateways in two different locations. I want to be able to route calls to both devices (preferably round-robin). I have the router pattern going to a trunk with both cubes defined (with sip options keep-alive configured). The issue we are having is that if the call is made to CUBE1 and the associated outbound dial-peer in in busyout, the CUBE returns 503  Service unavailable and CUCM doesn't try CUBE2. What am I missing?

Matthew Huff | Director of Technical Operations | OTA Management LLC

Office: 914-460-4039
mhuff at ox.com<mailto:mhuff at ox.com> | www.ox.com<http://www.ox.com>
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