We are currently have 30 mgcp isr gateways 2 are used for PSTN connectivity and the others for srst, 911 and analog ports.
Five days ago five of the SRST gateways started intermittently failing over to the backup CM Subscriber, then instantly failing back. This has occurred a total of 14 times.
I am perplexed as to what would be causing this issue. We have examined the network logs as well as the gateway configuration and nothing is out of the ordinary. The only call manager changes that have been made over the last fives days are move, add, changes.
Is TCP backhaul used for all MGCP gateways? I thought it was only used for BRI connectivity.
I just went through all our application logs on the ccm servers and i noticed some phones have been unregistering and registering at off hours for quite some time. It appears that they are suffering from the same issue as the gateways.
I already have debug mgcp events running on the gateways that have started re-registering and i havent been able to catch one re-register yet.
Well i finally figured out what was happening. We ran a debug MGCP events and saw that the mgcp kill alives were arriving just before the failover. We also ran detailed trace on the call manager and saw that the mgcp kill alives were arriving just before the failover. So I decided to perform a cluster reboot and what ya know it fixed the problem.
Thanks windows for the mystery reregistration issue.
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...