I’m attempting to consolidate 5 FreePBX systems into one. Currently each system uses the commercial EPM to manage the endpoints on their subnets.
For the purposes of discussion let’s use these definitions:
local subnet = 10.1.2.x
far subnet = 10.6.2.x
The first step in consolidation is to assure I can use the EPM to manage the phones on these far subnets.
The local FreePBX can ping the endpoints at the far subnets.
The built-in Network Scan isn’t working to find the available phones in the remote subnet. I’m guessing it’s because the network scan uses ARP? Though, before adjusting some firewall rules to the far subnets I saw packets on port 443 getting blocked, so it would seem the network scan does try other types of network analysis besides ARP.
What is the recommended process to map extensions to the endpoints on the far subnets?
And, is it possible to use the EPM to fully manage these remote devices as if they’re on the local subnet?
Endpoints are Grandstream gxp2130/gxp2140 using recent firmware
Thanks in advance for any tips.