Hi, I set "alaw = 1-7" in /etc/zaptel.conf hoping to make my zap channels the same as the PSTN. This caused the levels to be about 20dB too high, as well as being distorted. I adjusted the txgain and rxgain settings in /etc/asterisk/zapata.conf to sane levels, but now I still have rather distorted zap extension -> zap extension sound quality. What am I missing here ? zap 1-4 are phone extensions, and zap 5-7 are telco lines. At the moment I'm not even looking at the telco lines. Many thanks, Thomas