I'm using CCM4.1.3. I want to used MGCP as the gateway, as its easy to install. However, my team member claims that H.323 gateway will only work with unity server. I need evidence that this is not the case.
Well, that document that I provided is a workaround for MGCP gateway with Unity. It is a cisco doc, and it is from Troubleshooting Guide for Cisco CallManager, Release 4.1(3)
I found the bug that fixes the MGCP issue:
CSCdw62748 V-mail will be cut off after 40sec if call via MGCP gateway
If the outside call comes via MRP with MGCP protocol and ring a phone with no answer, it will hit Unity and the caller leaves a V-mail. But the V-mail will
be cut off after ~40 sec. when the caller hear "click".
Another MRP running same software but using H.232 protocol has no such problem.
1) Disable RTCP timer in MGCP. Using global config:
router-name(config)#no mgcp timer receive-rtcp
2) Using H.323 protocol instead of MGCP protocol.
I have gateways configured with both MGCP and H.323 that works just fine when I forward calls to the Unity server. I think your team member needs to show proof that H.323 is the only approved method with Unity. However, the best thing you could do is to show him that MGCP does work.
If you think about it, the voice is carried in the RTP stream and Unity doesn't know or care if it was MGCP.
This was posted in another forum about the MGCP gateway and Unity ports answer. Hope this helps also.
The problem is the DTMF relay on a MGCP gateway. It was set to mode cisco, and we changed to mode out-of-band, and it worked fine. What I don't understand is, this config worked fine until we did the ES update for Unity to fix another issue.
Very strange......It only affected 1 DID number through, other DID worked fine with mode cisco....
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The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
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