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SIP Proxy Server

Hi,

I have integrated CCM 4.0(1)(with latest patches) with cisco SIP Proxy server 1.3 of the service provider.I am able to make in bound & outbound calls & the codec I am using is 711ulaw on SIP trunk . I have configured the phone for G711.

1.SIP Trunk config on CCM has only two codec options ie 711ulaw & 711alaw.But as G711 uses more bandwith(around 80K).Is there any way I can configure G729?

2.Also the call is getting disconnected exactly after 80 sec.Is there anything to be configured on CCM.

3.If I want to place CCM behind the firewall(PIX) what are the changes to be done on PIX.

4.Is there any issues If I configure NAT for CCM servers & IP phones.Can I configure PAT on pix or interner router for ip phones.

Regds

Kiran

1 REPLY
Silver

Re: SIP Proxy Server

There is a bug related to this:CSCea91180. As per this, G729 codec is not supported in CCM 4.0 SIP trunk.

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