[asterisk-users] ztmonitor displays full bar when idle

[Yuan LIU]

Hardware is an SM56 card (X100P clone).  When the line hangs up, ztmonitor 
displays full bar (or whatever maximum allowed by rxgain) in RX.  It only 
drops zero when the line picks up (and remote was silent).  Is this 
something of concern?  The zap channel seems to work despite echo.

Additionally, what's the objective of tuning with ztmonitor?  I mean, what 
would indicate an optimal level? (Because display of ztmonitor depends on 
the volume of the remote speaker - I'm using demo sounds from another 
Asterisk, how do I tell?)  Documents I see only mentioned RX, should I be 
concerned about TX?  What's a good indicator of an optimal txgain?

Yuan Liu