[Asterisk-Users] Re: GS HandyTone Issue

[Holger Schurig]

> unit, I hear the buzzing noise on the internal dialtone and also I hear
> the buzzing noise on the internal network setup menu. (I even could
> hear the buzzing dialtone when it was off the network)...

Try switching your computer and monitor off. Or your halogen lamp. Or your 
cell-phone. Whatever could create an electromagnetic field high enought 
to make this disturbing noise.