[Asterisk-Users] strange wave like noise on sip handset

[brett at websmyths.com]

On Sat, 2005-10-01 at 14:47 +0100, Angus Comber wrote:
> No it happens on our asterisk and at a customers.  Not that noticeable but
> not crystal clear.  Didn't happen on a Snom 190.

[Snip]

> Sipura SPA-841 - when receiving an incoming call echoy for about 2-3  seconds
> at start of call then echo went away.  Remote end did not hear any echo.
> Also wave like hiss as per my message.

Angus - does the SPA-841 have AGC?  Turn it off if you can.

Brett