I think its still G711 at 80k. The Auto Attendant is still playing that stream over the WAN to the MGCP gateway for an outside caller.
Either way, if CUCM and Unity are colocated and the CallHandler or checking voicemail, recording a message, anytime a port is being used, there is stream of traffic coming/going to/from the Hub and remote site.
So if 3 outside callers from the remote MGCP site hit Unity, you have (3) streams of G711 being used to/from Hub and MGCP location.
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...