VaibhaV Sharma wrote:
Hello,
In my quest to figure out the source of the random echo on our shiny new
asterisk install, I have been using ztmonitor on the TDM400p channels
for the good part of today.
I have 2 TDM400p cards with 8 FXO modules and 6 pots lines connected to
them (last 2 channels are unused but configured in zaptel). Even when
the lines are onhook, the Tx values settle down to 0 but the Rx values
still jump up and down. For some lines the values vary around 440, for
others around 250 and for one of the unused FXO ports, its around 97 all
the time.
With txgain/rxgain set to 0.0, call volumes were considerably low.
Hence, I have txgain set to 1.0 and rxgain set to 6.0.
why not txgain=-6 to start out with?
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