We have to implement Voice over IP on our IPLC circuit between foreign office and India office.
Topology is such that our foreign office is having 1700 series router with wan card
(Wic-1T) and one two port FXO card connected to PBX for PSTN and local connectivity.
India end we have a cisco 1700 router with wan card (Wic-1T) and on lan we have Avaya S8300 media server with multiple phones connected to it. Avaya server is acting as a voice gateway at India end. Avaya server is connected to LAN on Ethernet.
We have configured IPSEC site-to-site VPN between both the locations.
Over the VPN tunnel we want to enable voice communication between both the locations.
i.e between cisco at foreign end and avaya server at India end.
1) India office users via IPLC should communicate over voice and data with the foreign office (Avaya extensions to FXO in Foreign office).
2) Foreign office should communicate with the india office users connected to IPLC link (FXO to Avaya server extensions)
Any suggestions/config will be appreciated
Attaching the india end router config.