asterisk users - Jan 2005 - voicemail sound distorted - chan_capi, diva, cvs-head

hi,

i have a problem with distorted voicemail sound on our asterisk test 
machine.

i'm using cvs-head (2004-01-17) and chan_capi 0.3.5 (with my patches to 
make chan_capi compile with asterisk cvs-head) and a diva quad-bri isdn 
card.

other things work well with my setup (dial in, dial out, app_meetme) and 
sound recordings from sip channels.

the problem is with voicemail and app_record, where only a distorted 
sound can be heard in the recording if one shouts into the microphone of 
the telephone.

has anybody had the same problem or can confirm this issue?

regards
  frank