[asterisk-users] Buzzing / Humming Noise

[Hoggins!]

Hello,

I'm afraid it has nothing to do with Asterisk, but bad ground loop on
your electrical installations. Solve this, and you get rid of the buzzing.


Le 28/04/2014 14:08, Shahid H a écrit :
> Hi
>
> Lately I've been having problem with the handsets on the polycom
> phones. The agents are complaining that the humming/buzzing can be
> heard on random days.
>
> When the agents touch their computer the buzzing may increase louder
> or reduced. Also when they grab the handset cable, the buzzing noise
> is less loud and is loud again when I let it go. 
>
> I have tried changing the handsets, problem not fixed. 
>
> What is causing this? Is this networking issue? I have tried
> restarting the PBX Servers, switches, etc. Still same problem.