[cisco-voip] Incoming Call Issue

[King, Jesse]

CM 4.1(2), MGCP Gateway 3745, IOS ver 12.3.11t3, using a PRI
 
 
Most calls coming in are fine. But sometimes a call comes in, This is
what happened - PSTN calling gets no ringing, but call rings on 7960
phone and is able to answer. No voice in or out is working. Call will
stay up until PSTN caller disconnects call because of no ringing or
conversation. 
 
I can't seem to narrow this down, and frankly not sure how to. I did a
debug of ISDN q931, and have the capture of a good and a bad, but the
look the same. So I suspect I am not debugging the right thing. 
 
Attached is the isdn q931 of the bad, then the good.
 
Any suggestions on where I could start?
 
Thanks guys.
 
Jesse
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