this is the ztmonitor on the FXS (fax machine) during the middle of the transmission (pretty steady)

( # = Audio Level  * = Max Audio Hit )
<----------------(RX)----------------> <----------------(TX)---------------->
 ###########################*           ###############  *                  


this is the ztmonitor on the FXO (asterisk box set to receive fax and send via email) during the middle of the transmission (pretty steady)

<----------------(RX)----------------> <----------------(TX)---------------->
 ###################################*                         



FXS gain settings:
txgain=0.0
rxgain=1.75

FXO gain settings:
txgain=5.0
rxgain=5.0