[Freeswitch-users] softphones and background noise

[Juan Pablo L.]

thanks Eugene for all these suggestions, i followed them and they helped a lot.
the situation has improved and i think i found the root cause of this issue in the softphones.
thanks everybody for all your help.

----------------------------------------
> Date: Tue, 26 Jun 2012 09:32:57 +0300
> From: shcherbatyuk at belrosbank.by
> To: freeswitch-users at lists.freeswitch.org
> Subject: Re: [Freeswitch-users] softphones and background noise
>
> Hello,
>
> We had a number of sound quality issues with our softphones. We could
> decuce some causes for that. Often quality of sound was affected by a
> combination of them. Here is a something like a checklist:
>
> -- Softphone codec implementation is not that great. (Try different
> codecs and/or softphones)
> -- Softphone echo cancellation introduces noise (turn off soft echo
> cancellation)
> -- Transcoding issues at the softphone side.
> -- Number and order of softphone codecs are different from these of VOIP
> server (make them the same);
> -- Noise is generated due to sound card/OS sound equalizer(mixer)
> misconfiguration (turn off any effects, see that mic is not echoed to
> speakers, etc., etc., etc.)
> -- User PC is overloaded ('weak' CPU, little of RAM, RAM spooling, too
> many open windows/processes, greedy antiviral software etc.)
> -- Weared out and/or buggy headsets.
>
> Hope this will help.
>
>
> On 25/06/12 19:19, Juan Pablo L. wrote:
>>
>>
>> Good morning, i m having lots of issues with softphones, when a call
>> is initiated/terminated to a softphone the background noise is too
>> high that you can hardly hear the actual voice. i have played around
>> with VAD and CNG turning them on and off in the profile and/or the
>> dialplan but i have not had any luck. it does not matter if the call
>> is internal or goes through a gateway, it is however, worse when it
>> goes through a gateway, those are the cases you can not even hear the
>> voice for so much noise and when the call is to a next extension the
>> background noise is high but not as high. But, if you
>> initiate/terminate the call to a hardphone (like polycom phones) the
>> call is perfectly clear in all cases (except when the other end is an
>> internal softphone). can someone please give me a hint. thanks a
>> lot!
>
>
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