I have set up Unity 3.02 and CM 3.1.2c it is working pretty well except for a small issue. It seems that PSTN callers comming from the MGCP gateway can hear the greating but Unity times out and no message is recorded when trying to leave a message. It is as if Unity cannot hear the callers voice and the default 5 second timer expires. Other PSTN calls to IP phones work fine and calls out to the PSTN work fine from IP phones.
Sounds to me like one-way audio. I am assuming that internal calls work fine. You might want to take a sniffer trace of the call on the Unity interface and see if Unity is getting the packets. If not you can sniff the gateway interface to check and see the destination of the packets.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...