[asterisk-users] screeching noise on zap channels

[Steve Totaro]

On Mon, Apr 7, 2008 at 8:36 AM, Tzafrir Cohen <tzafrir.cohen at xorcom.com> wrote:
> On Mon, Apr 07, 2008 at 10:17:33PM +1000, Col Ferguson wrote:
>  > I have been working on a system where sometimes the users get a horrible
>  > screeching noise that gets louder, typically as a call is hung up.
>  >
>  > The system has 2 analog astribank channels with 8 FXO and 56 FXS ports, and
>  > 2 SIP phones, Asterisk 1.4.18, Zaptel 1.4.9.2. It is using the oslec echo
>  > canceller.
>
>  Fixed in zaptel 1.2/1.4 SVN (or in the
>  http://updates.xorcom.com/astribank/src/zaptel-1.4.9.2.xpp.r5566.tar.gz
>  )
>
>  --
>                Tzafrir Cohen
>  icq#16849755              jabber:tzafrir.cohen at xorcom.com
>  +972-50-7952406           mailto:tzafrir.cohen at xorcom.com
>  http://www.xorcom.com  iax:guest at local.xorcom.com/tzafrir
>

Was it a function of echo cancellation?

Thanks,
Steve Totaro