We're experiencing a strange problem that I'm not sure why I'm not finding more information on. It seems to be a rather big glitch.
Basically if you dial an invalid extension straight from the phone it will give you a system message followed by a busy signal. So if dialed into a call handler which allows for a transfer to an extension, if you enter an invalid extension it basically hangs there and then goes to dead air. At that time a Unity TSP error is logged stating that Unity detected a reorder tone and the port might be down. The port in Unity does in fact go down and I have to Reset it to get it responding again.
Has anyone else encountered this issue? Is there a fix? A Cisco tech referred me to a TSP upgrade from 8.1(2) to 8.2(1). I've tested this upgrade out in our test environment and the upgrade does not fix the problem.
Any help would be greatly appreciated.
Also this is Unity 4.2(1) and CCM 4.2(3)