I am trying to implement a large remote site with no local CCM. The remote site has five SRST gateways, one of which will serve as gatekeeper. In normal status, all phones are registered with CCM, and the gateways are H.323 peer to PSTN.
During WAN outage, all phones are registered with local gateways, and the gateways will register E.164 address to gatekeeper. So it will work as a H.323 environment.
However, in the real case, the users are using shared line quite a lot and the same E.164 numbers are registered with different gateways. And ironically, one single conflict number between gateways will fail the gateway registration with gatekeeper. Is there any way to work around this technical limitation? The numbers are all over the remote site and cannot be categorized into number blocks for different gateways, so zone prefix or tech prefix does not help much in this case.
Any idea will be highly appreciated!