On Wednesday 12 April 2006 17:24, John Van Ostrand wrote: > I'm thinking this might be the echo cancellation or it might be the fact > that I have rxgain and txgain set to 8 and 5 respectively to compensate > for low volume.
Did you tune those values to get to about -2 to -3dBm using ztmonitor -v? If not, you could very well be overdriving the VPM. You should also be able to rule out the VPM by using "vpmsupport=0" in your modprobe of the TDM2400 card. -A.
