I have seen a lot of discutions about this combination. I have one wich is not working. IFXO which is configued as mgcp. I have connection plar opx on a voice-port.
From what I know it is mondatory to don't have connection plar under voice-port when configured as mgcp gateway.
Is there a posibility to make them work? I have seen that Attendan DN under the Call Manager MGCP gateway is doing the same as connection plar. What about when it is in SRST mode? Dose the Attendant DN solve the connection plar under the voice-port in SRST mode?
Well - if that is still current, then it's another reason to go H.323. Without connection plar outside callers will just get dial tone when they dial your number, and would have to dial an internal extension number to reach anyone. It also opens up possibility of dialling other PSTN numbers so the call routes back out and you get to pay for the call.