Router 1760 ccme 4.1
I am facing two problems.
1. When an income call is answered and the remote caller hang up the bri card detects the end call. when someone calls a public number the bri card keeps the port open even though the call is terminated by the remote peer.
2. We don't hear the moh sound when a call is on hold.
first advice is that you switch to 12.4(11)XJ4 that has many bugs fixed.
Then if still problems, please collect "debug isdn q931" with term mon.