[asterisk-users] SIP & Echo

David Gomillion david.gomillion at gmail.com
Tue May 22 06:22:08 MST 2007


We experience echo too from time to time. It's usually headset-related, but
not always. I ran a persistent ping on one of the phones, and we diagnosed a
wiring problem with it. Other phones needed a new handset. The problem is
that these problems need to be fixed on the phone NOT hearing echo.

On 5/22/07, Asterisk <asterisk at abraxas.si> wrote:
>
> How could I check if bandwith or/and latency is causing it?
>
> If I do SIP show peers it says OK (13 ms) for all peers. I guess there is
> a way to gather more detailed info on SIP calls and latency?
>
> * box is connected to the 1Gb switch with 1Gb connection, and clients have
> 100Gb/s speed. CPU is 90% free in peak time, and there are 34 SIP hardphones
> connected to the * box.
>
> Thanks, Alex
>
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:
> asterisk-users-bounces at lists.digium.com] On Behalf Of Alexandre VERNIOL
> Sent: Tuesday, May 22, 2007 2:18 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] SIP & Echo
>
> Hi,
>
> Could be bandwith or/and latency ... Many causes...
>
>
> Alex
>
> Asterisk a écrit :
> > Hello all,
> >
> > One of our clients reported that they are experiencing echo in SIP calls
> > (even on internal ones). What do you think could be causing echo in
> > internal SIP calls?
> >
> > We're using Polycom telephones, do you think they could be causing it?
> >
> > Thanks,
> > Alex
> >
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