VG224 MGCP Gateway some ports dropping registration
We have about a dozen VG224 located at a site using MGCP.
The problem is, initially the gateway will register with CCM but over time various ports on the gateway will lose their registration with CCM.
Users will complain they get no dial tone from the phone or a busy signal when calling the number.
Issuing the âshow ccmâ and âshow mgcpâ commands on the VG itself indicate that it is registered but if you look at the port causing problems in CCM it shows up ânot registeredâ or âunknownâ
On the advice of Cisco we upgraded the IOS from vg224-i6k9s-mz.124-15.T8.bin to vg224-i6k9s-mz.124-22.T.bin but we still see the issue.
All the links are running clean and error free so it doesn't look like a network issue.
Re: VG224 MGCP Gateway some ports dropping registration
A lot of these issues are bug related. Every now and then it comes down to a network related issue of lost packets. If they don't eventually re-register you could have either a gateway or CUCM problem.
Since they're so closely tied together it can be very difficult to figure out which is the problem.
Things that may help you figure out what's going on (or identify the bug):
show voice port summary
show voice call summary
show mgcp endpoint
Do these when the port is unregistered and it will give you some hints on where to look.
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The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
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