[Asterisk-Users] Invalid GSM data

[Chad Scott]

You might have silence suppression turned on in the soft phone... turn 
it off.

If that's not the culprit, use a different codec... maybe the soft 
phone just doesn't speak GSM right.

On Oct 15, 2004, at 6:16 AM, CHAUVELIN Samuel wrote:

> I use my asterisk to SIP H323 Gateway.
>
> Softphone SIP <-> Asterisk <-> H323 Gateway <-> cellular phone
>
> I hear very well in my spftphone when i speak in my cellular
> But when i speak in my softphone the sound is very very very bad
>
> and i have this message in CLI console of asterisk :
>
> codec_gsm.c:164 gsmtolin_framein: Invalid GSM data
>
> What is the pb ???
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