[cisco-voip] SIP Gateway and CCM

[Walenta, Phil]

Cisco Gateways can act as SIP User Agents (endpoints, basically). 
 
I don't know that they would be able to translate from an inbound SIP request to H323 well, as that would be a "Voip hairpin" - something the routers couldn't do until the very latest 12.3 code.  I've never tried this code so I can't say it will work.
 
I'm assuming it'd look something like this:
 
Service Provider -> Network connection -> your gateway -> CallManager
 
In this case, with 12.3 code, you could make a VoIP Peer with a SIP session target, and an H323 Voip Peer with CallManager as the target.  As I said, this is supposed to work in the very latest 12.3, I couldn't say if it does, or how well it might work (my 12.3 experiences have all been very bad so far).

________________________________

From: cisco-voip-bounces at puck.nether.net on behalf of medley at mac.com
Sent: Fri 4/2/2004 4:03 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] SIP Gateway and CCM


I know that CCM 3.3(x) doesn't support SIP natively; I'll have to wait for CCM 4.0(x) for native SIP trunking.
 
For now, can I use an IOS gateway to translate between H323 and SIP? I'm thinking CCM connects to an IOS H323 GW. The IOS H323 GW connects to a SIP Gateway.
 
We are looking at connecting to another service provider that really wants us to use SIP instead of H323 to connect to their gateways.
 
tm
 
 
 
________________________________________________
Tim Medley
Appia Communications
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(704) 905-4604 cell
aim: macmedley01
medley at appiaservices.com
 
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