Hi 2 All
We got an issue and hope to get some help.
Our PSTN lines are terminated on Nortel System, recently we have installed CME on 3800 series Router.
So far managed to integrate Nortel with cisco and now we can call/receive between nortel and cisco. H323 is used between Nortel and cisco
Calling outside our company with sip endpoints registered on cisco is working.
Calls initiated outside our organization to extensions registered on cisco I can hear ring but no voice.
All codecs are same G711 a / G711u / G728AB but no voice.
For test purpose we installed xlite and it works for local extension calling, and calling to anyone outside our organization.
recceiving calls from outside our organization on endpoints terminated on Cisco is not working, it rings with no voice.
If Someone calls from outside our organization to endpoints terminated on nortel then its working.