Sip trunks between two CCM 4.1.3

D0nprintup_2 · ‎10-13-2008

I have two locations and I am testing the following

- Sip trunk between them

Both locations have a CCM of 4.1.3

Both locations are connected via a VPN tunnel

--- The Tunnel is set to allow traffic from both voice networks. it is setup to allow tcp/up (all ports)

I created the sip trunk in ccm on both servers. I created the CCS and route pattern to test between both sides.

I can call each side, it answers. But I cannot hear any voice

I can hear DTMF tones when pressed but no audio.

I also see some werid issues with call hold and stuff but i am assuming thats the Limited SIP compat in the verison of call manager

Remote site - PIX 515

Main site - ASA 5520

Limarenko · ‎10-13-2008

create h323 gateway

D0nprintup_2 · ‎10-13-2008

I wish I could, I cant. We are having several companys use SIP trunks right to our system to save on over seas calling.

weird thing

I installed wireshark on the PC running a IP communicator (My test phone)

I loaded everything to monitor test calls and enabled traces. Now I test and it works. I cannot place calls o hold now. When I do I cannot retreive them. I have the MTP checked on both sides of the SIP trunk and it still will not put them on hold.

I know most people say to use 5 or 6 for this. We are still on 413