Gateway disconnects call to Unity after 36 seconds
I had to replace a production gateway for a customer today because of a hardware problem. After I put the new router into service, the customer began complaining that callers were getting disconnected after 36 seconds when leaving a message in Unity. I compared the configs on the old and new router and noticed the following commands missing on the new router:
mgcp rtp unreachable timeout 1000 action notify
mgcp modem passthrough voip mode nse
mgcp package-capability rtp-package
no mgcp package-capability res-package
mgcp package-capability sst-package
no mgcp package-capability fxr-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp fax t38 inhibit
no mgcp explicit hookstate
mgcp rtp payload-type g726r16 static
Pasting these commands into the configuration seemed to solve the problem.
Since this is a production device, I didn't have time to determine which single command fixed the problem. I'm wondering if anyone can explain which command's absence may have caused the problem.
The gateway in question is a 2651XM with a VWIC-1MFT-T1 running 12.3(11)T8.
Re: Gateway disconnects call to Unity after 36 seconds
Voice Messaging Stops After 30 Seconds
When running Cisco Unity 3.x with Cisco CallManager, a caller only has 30 seconds in which to leave a voice-mail message.
This problem occurs when a caller is leaving a voice message and the call is terminated 30 seconds into the message. Reproduce this easily by dialing a valid extension/number and attempting to leave a voice message that is longer than 30 seconds.
1. To resolve this problem, verify that the Media Gateway Control Protocol (MGCP) is being used on the voice gateway.
2. If the MGCP is being used, add the no mgcp timer receive-rtcp command.
3. If MGCP is not on the voice gateway, enable Skinny traces for the Cisco Unity server and Cisco CallManager traces.
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