[asterisk-users] TDM2400P Voice Quality Problem

[Shariq Khan]

I m facing problem with TDM2400P pstn card. When someone dials, the voice
quality is crappy....Instead of hearing.

Echo cancel almost works, but the callee hear what they describe as a
'background crackle/buzz' coming back when they talk.

I tried with rxgain & txgain tuning but ....... no effect.

Anyone have idea, what to do for the better sound quality.

Shariq
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