Hi all -
We have an old PBX (PBX1) set up in a closet in the corporate office that is 2.4.0 and on very old hardware. As the company has grown, we need to move to a better box and so we’ve built a 2.8.1.4 box on a new server in our co-location (PBX2). The configurations have been migrated successfully, so both boxes have essentially the same configuration (extensions, conferences, voice messages, etc.)
PBX1 is set up so our provider has a primary and secondary termination point for our SIP trunk. The primary is set for PBX1 and I have requested the secondary be pointed at PBX2, for use as its SIP trunk. The idea is to be able to shut down PBX1 and have the calls automatically route to PBX2, for testing.
What I am not sure how to handle is the registration of the multitude of devices that are out there, some set with hardcoded IPs, some with an old DNS entry (“phone1” let’s say) and some with a new entry (“psystem1”) Once we switch it over, all these devices (including softphones ALL OVER the world) will need to be manually reconfigured to point at PBX2, as PBX1 will no longer work.
Is there a way to get both PBX1 and PBX2 to field calls regardless of which of them the device registers to? I’ve been looking into DUNDi, but it seems that’s more designed for directory sharing than mutual routing. Am I wrong? Any suggestions?
Thanks much for any advice!
Matt