Rob Huffman Fri, 09/14/2007 - 10:04
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Hi Peterson,

Here is the info you were looking for;

SIP Signaling/Trunk Interface Configuration Checklist (***CCM 4.1(3))

Cisco offers two versions of Cisco Unified Communications Manager: Version 4.X on the Windows 2000 Operating System, and versions 5.X and ***6.0 as a Linux-based appliance model implementation.

Hope this helps!


pgcristovam Fri, 09/14/2007 - 10:15
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So i need a sip proxy server.

I would like interconnect a PBX Siemens and CCM 4.x by SIP Trunk, but in the picture and document see that's need a SIP Proxy Server "in-the-middle".

Another question, in SIP Protocol, I can use a gateway like i use in MGCP? Redirecting call, controlling ports, etc, management by CCM?


teodorgeorgiev Sun, 09/16/2007 - 23:26
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You do not need a SIP proxy server.

The CCM 4.x support SIP trunks (what it does not support is SIP endpoints).

A SIP trunk is where you directly send an INVITE message, without the need to REGISTER.

The Siemens HiPath 2030 are able to handle SIP trunks as well, if my memory serves me correctly.


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