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problem with voice quality with FXO / FXS configuration

Hi

I am using FXS module at one end (router 2621) and FXO module + FXS module at other end (3660). The FXO port is connected to the PBX with analog line.

I am facing voice quality problem if FXS port connected telephone connects to the PSTN line via FXO port . This problem is mostly faced by the user at FXS end and the user at the other end (pstn) is not experienceing any problem.

If someone can suggest some fine tuning on the router FXO or FXS ports or elsewhere it will be very helpful. (like input/output/impedence etc)

Thanks

Rakesh

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Re: problem with voice quality with FXO / FXS configuration

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