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.
Anybody ever seen this issue?