We have a working SIP Trunk with a SIP provider. For mobile traffic we have configured a Quescom gateway wich only handles traffic to predefined cell phone numbers. If a cell number is not configured in the quescom it has to fall back to the SIP connection. If this is the case we have one way audio! If i call the cell number directly without intervention of the Quescom the problem does not occure. I have some debugs of the SIP messages attached. I don't see anything strange.
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...