[asterisk-users] Re: Plantronics and Snom RF feedback

[Jason Bachman]

For what its worth,

We use plantronics headsets on snom360.  Plantronics headset gets 
connected to the headset jack, then you use the headset button to 
activate it.  The "feedback" is due to grounding issues.  The phone MUST 
be connected to a hub/switch using a STP cable.  UTP cables will NOT 
provide a ground and you will end up with noise on the headset.   The 
external power adaptor also does not provide ground.  We went through 
this with plantronics and with Snom.  We finally connected to phone to a 
PC's unused ethernet port using a STP cable and problem went away.

The current problem we have now is that the headset connection audio 
takes forever to cut through when answering a call.  It seems to happen 
1 out of every 5 calls or so.  Most noticeably after the phone sits idle 
for a while.  If anyone has a suggestion for that problem it would be 
greatly appreciated.

Jason Bachman
ASON, Inc.


Benny Amorsen wrote:
>>>>>> "JO" == J Oquendo <sil at infiltrated.net> writes:
>>>>>>             
>
> JO> I don't follow... Remove the mechanical lifter? Then do what, go
> JO> from the Plantronic to the headset jack on the Snom, leave the
> JO> receiver in its normal port? If I do this, the person has to hit
> JO> the "headset button" on the Snom...
>
> JO> PlantronicRJ11 --> Headset port on Snom --> User HAS TO hit the
> JO> headset button on the Snom
>
> Yes, I'm saying plantronics -> handset port (not headset). Then tell
> the Snom that no headset is connected.
>
>
> /Benny
>
>
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