[asterisk-dev] Adding Octastic Soft-Echo to external SIP adapters

[Vazir]

PSTN (MY CALLING CARD CUSTOMERS) <---> CISCO AS5350 <---> 
VOIP SIDE (SATELLITE ~600mc roundtrip - 300 mc oneway!)

So the echo is generated by the VOIP side. I can hear it 
very well is I switch off echo cancellation on the CISCO

but surprisingly CISCO takes 64 ms echo cancel parameter and 
cancels echo on a such a latent link...

On 7 May 2007 16:27, Eric "ManxPower" Wieling wrote:
> I don't have enough information about your setup to
> answer that.
>
> I assume you have
>
> VoIP phone <-> Network <-> Cisco <-> H323 <-> Some
> PSTN/VoIP Box
>
> Is this correct?
>
> Vazir wrote:
> > How than my CISCO AS5350 gets H323 VOIP and
> > echo-cancels so exelently :))))))
> >
> > On 7 May 2007 12:45, Eric "ManxPower" Wieling wrote:
> >> Generally, once the audio is converted to VoIP audio
> >> latency is far too high for echo canceling to work. 
> >> Echo needs to be canceled BEFORE the call is converted
> >> to VoIP.
> >
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