I have a CUCM 6.1 install, using a 2811 with MGCP to telco.
The site is in the middle of nowhere, so the only circuit they can provide is a voice T1 off of a "1A" switch. I am not familiar with a 1A switch, but appearantly it is pretty uncommon and old. I ordered the circuit as a wink start e&m circuit. What was delivered is the following:
Channels 1-14 are incoming DID channels, wink start.
Channels 15-24 are, as per the telco, "just like pots lines...dial tone"
Incoming works fine, but outbound is not working properly. When I call out, the call will ring, but when the caller answers, it does not show as a connected call. The voice path is established, but if you view the phone, it still shows "Ring Out" and if you show the voice port in the router, it shows EM_Wait_For_Answer.
Does anyone have any suggestions where to begin? Telco insists that this is the only way this circuit will work.