CCM1 IP phones not able to dial into CME IP Phones. When CCM1 phones call into CME phones, CME phones will ring, however, upon picking up the call at CME phones, CCM1 phones will continue to ring. It's as if CME phones is either
a) not telling CCM1 that he has picked up the call
I've tried both G711 and G729, and I've also configured a voice-class codec with g711 as preference 1, and G729 and preference 2. Strange thing though,. if the calls are made via a Gatekeeper, the call works fine too. Meaning, CCM1---HQRTR---GK---Branch2/CME.
Customer not using SIP at the moment. Calls from CCM1 going out via HQRTR through ISDN PRI and in via E1 PRI into CME/Branch2 router has got no problems. Do I need IPIPGW features in my CME/Branch router? Since it's a voip dial-peer to voip dial-peer?
Absolutely no need for ip-to-ip image on the CME. I've looked at the trace and could not make much sense of it. Can you make ip connectivity between CCM and CCME so that the call doesn't need the ip-to-ip gw ?
I've tried configuring CME/Branch2 as a H323 GW inside CCM, but I get the same problem (when CCM phone calls CME phones, and upon CME phones picking up, it will play 3 beeps, and CCM phones will not cut through to voice bearer, it just keeps on ringing).
which IOS are you running on the CCME ? I would try to upgrade it latest maintenace, but just a precaution, because at this point it seems the problem is on the CCM unable to recognize answer and proceed with the call.
I know that is possible to take traces and decode on the CCM, unfortunately I'm unable to personally help in that, hope someone here can.
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