[Asterisk-Users] Asterisk Echo problems, Urgent, please help,

Matt mhoppes at gmail.com
Fri Sep 30 05:25:18 MST 2005


There is no tx/rxgain on a sip call (other then on the sip phones).   
 Also, no echocancel on sip-->sip calls (unless you turn on when
bridged)... but I believe he has stated he is already doing this.

On 9/29/05, Matt <mattl at xgforce.com> wrote:
> hi:
>
> We are using 1.0.9 * with sangoma 104 quad card, hooked to 4 E1s. We have no
> echo problems at all.
>
> The voice qualities sound and clear, try adjust tx/rxgain a bit. and make
> sure your zapata.conf's echocancel param is enabled.
>
> Best Regards
>
> Matt
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> __________________________________________________
>
> ----- Original Message -----
> From: "Tom Hayden" <thayden at gmail.com>
> To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> <asterisk-users at lists.digium.com>
> Sent: Thursday, September 29, 2005 6:02 AM
> Subject: Re: [Asterisk-Users] Asterisk Echo problems, Urgent, please help,
>
>
> > What kind of POTS trunks/cards are you using?
> >
> > --
> > Tom
> >
> > On 9/29/05, Ian Bonham <bon_the_one at hotmail.com> wrote:
> > > Hi all,
> > >
> > > I hope someone can help, as I have an urgent problem.
> > >
> > > I've got a production Asterisk server thats been deployed, but we are
> seeing
> > > a strange voice echo problem. There is about a 250ms echo for the users
> in
> > > the office, and they are hearing their own voice back at them.
> > >
> > > I'm running the CVS Head code, on RH9.0. This is on a P4 box with 2gb of
> > > memory. The client SIP phones are Polycom Soundpoint IP600's, WiFi ZyXel
> > > 2000w handsets, and X-Lite (free) PC clients. All see the same problem.
> > > There is a bridge into the POTS (BT's SystemX) using a Voicetronix
> > > OpenSwitch12 card and the vpbhp driver.
> > >
> > > The echo occurs on both SIP->POTS calls, and SIP->SIP calls. I've tried
> a
> > > number of volume adjustments to correct the echo but it is always the
> same.
> > >
> > > If anyone has any ideas I'd really appriciate some help, as this is a
> major
> > > urgency,
> > >
> > > Many many thanks,
> > >
> > > Ian Bonham
> > >
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> >
> > --
> > Tom
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