Hi all,
I would like to know how can I immunize the background noise in my
case. Anyone can help? I have adjusted txgain & rxgain in different
value but the result is the same.
ango
Below is my configuration.
asterisk1.4.21.1
zaptel1.4.11
addon1.4.7
TDM400 (FXOx4)
There is a very large background noise when a call from sip to PSTN.
Below is the test case.
A - sip phone
B - PSTN
case 1: result is normal
caller A1
callee A2
case 2: A hears B is ok but A hears much background noise from his/her
area when A say nothing. The sound volume of A is very low when B
hears A.
caller A
callee B
case 3: same as case 2
caller B
callee A
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