I had this problem last week where a PRI link (used for voice) came into my network via a 2610XM. Despite attenuation changes, volume changes etc I was unable to increase the outgoing volume. I was lucky enough to have another 2801 which I replaced the 2610XM with and the volume issues have cleared up. What version of IOS is on the 2811??
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...