[asterisk-users] Cianet channel bank with noise and echo

[jefferson alexandre]

On Tue, Nov 24, 2009 at 11:29 AM, Steve Howes <steve-lists at geekinter.net>wrote:

>
> On 24 Nov 2009, at 13:05, jefferson alexandre wrote:
> > I'm running some asterisks in a small voip provider in Brazil and
> > we're having some problems with a analogic channel bank.
> > When I make calls using  analogic extensions,  I have a crystal
> > clear quality, but the receptor have a lot of noise and echo.
>
> Does the channel bank have onboard echo cancellation?
>

Steve, the hardware don't have echo cancellation.
Is a TDMoE hardware, plugged directly in asterisk using a straight cable.
In asterisk side, the network card haven't auto negotiation, the speed is
adjusted to 100mbps full duplex.
All electrical sources and ground are ok.
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