[Asterisk-Users] RE: Very bad echo (appears that...)

[Martin Pycko]

So 'zap show chanenl <channel-no>' shows that the echocan is turned on ?

Martin

On Sun, 21 Sep 2003, Asterisk PBX wrote:

> Oh, I forgot to say, zaptel/wcfxo is compiled with:
>
> KFLAGS+=-DECHO_CAN_MARK2
> KFLAGS+=-DAGGRESSIVE_SUPPRESSOR
>
> (and, Brian, my jack is wired correct..)
>
> -----Original Message-----
> From: Lenny Tropiano [mailto:lenny at voiping.com] On Behalf Of Asterisk
> PBX
> Sent: Sunday, September 21, 2003 5:02 PM
> To: 'Asterisk-users at lists.digium.com'
> Subject: Very bad echo (appears that...)
>
>
> The echo canceller algorithms aren't doing anything.  We get extreme
> echo during the conversation, it appears even before the call connects,
> the echo is there...
>
> This only happens with SIP to/from WCFXO (analog POTS).  Looking at the
> Zaptel configuration:
>
> 	/etc/asterisk/zapata.conf:
> 		echocancel=yes
> 		echocancelwhenbridged=yes
> 		rxgain=0.8
> 		txgain=0.8
>
> (although none of the above options seem to make any difference).
>
> Is there any debugging we can turn on to see what the problem may be,
> this definitely will hurt production of this environment.
>
> Thanks,
> Lenny
> ---
> Lenny Tropiano                          E-mail: lenny at voiping.com
> Partner, Networking Specialist          Pager:  pager-lenny at voiping.com
> VoIPing, LLC                            URL:    http://www.voiping.com/
> PO Box 867, Cedar Park, TX 78630-0867   512-698-8647(V) 425-944-6391 (F)
>
>
>
>
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
>