I have a problem where if I reload the Call Manager publisher, this causes all out going calls to fail on the gateways. Incomming calls are fine. I am able to re-arrange the priority of the gateways and the fault shows up the other gateway too. So this elimates hardware from a gateway point of view.
The fault is seen by doing a debug isdn q931. In the debug, you see
channel 31 and Requested Circuit/Channel not Available constantly flagging up.
The fault is cleared by the circuit provider resetting each channel one by one on the bearers. This brings the service back into life again and out going calls are once again possible.
The version of Call Manager is 4.1(3)SR5D.
The gateways are MGCP controlled, are 2651XMs running 12.2(13)T1 code.
Has anyone seen this happen before.
Any help or ideas will be greatly appreciated.