[cisco-voip] SIP Trunk Redundancy

[Ted Nugent]

I'm working with a client that has 3 sites where the PRIs were replaced by
SIP trunks. Everything appears to be running fine with the exception of
outbound trunk redundancy. The appear to have just removed the PRIs from the
existing RGs and replaced them with the SIP trunks. The problem is that if a
SIP trunk goes down its not rerouting to the next trunk, they are just
getting dead air. I'm assuming that this is similar to the issue seen with
H323 trunks and why a gatekeeper would be needed for this but what are the
options for SIP? I can probably get by with using Locations CAC for FO if
the trunks fills but not sure about if it actually goes down and CUCM can
determine that. CUCM 7.12 and no CUBE.
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