Christian wrote:
>> My SPA-3000 has never crashed, but echo cancellation has always been a bit
>> poor (particularly at the remote caller's end), and dependent on audio
>> gain levels set in the poorly-documented, over-complex web GUI.
>
> Martin,
>
> Maybe you tried this already, and maybe you're already tired of trying stuff
> with the SPA-3000 already, but you might want to try different line
> impedance configurations in the SPA-configuration, this does have an effect
> on the echo canceller.
>
> Trying another analog phone also sometimes help, the local echo canceller
> (which is the one that causes the echo at the remote site) sometimes can't
> cope very well with specific (cheaper) phones, or a lot of phones parallel.

Thanks for the idea, I'll give it a go.

In fact I have lots of different, vintage handsets running from the
PABX, so I'm not making life easy for myself ;-)


- Martin.