I have a customer with a topology as following:
(HQ) CCM --- WAN --- (BRANCH) VoiceGW --- H.323_Gateway
Normally the branch's outgoing calls goes through the H.323 Gateway which is registered with the CallManager as a regular H.323 Gateway and it works fine.
Now we want to implement remote survivability using SRST at the branch IOS Voice Gateway. In case of a WAN failure the phones could still register with the SRST Gateway, but the question is: Could the SRST Gateway use the H.323_Gateway in order to get the calls out?
If im not wrong, in that case the Voice_GW should act as some sort of IP-IP Gateway (SCCP to H.323). Does anybody deal with this situation?
Is it supported by the SRST feature?