asterisk users - Jul 2006 - Snom 300 headset with static noise

Someone using these phone Snom 300 with his own headset ?
We got horrible static noise on them?
P.D.
Got silence as answer from Snom by now... maybe on holidays or with in the
European Football championship.

-- 
Adri? Vidal
adriavidal at gmail.com
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On Jul 14, 2006, at 10:13 PM, Adri? Vidal wrote:
> Someone using these phone Snom 300 with his own headset ?
> We got horrible static noise on them?
> P.D.
> Got silence as answer from Snom by now... maybe on holidays or with  
> in the
> European Football championship.
>
Have a look at this document:
http://www.snom.com/wiki/index.php/ 
FAQs#Q:_Why_is_there_a_humming_noise_when_using_the_headset.3F

Michiel

On Freitag, 14. Juli 2006 10:13 Adri? Vidal wrote: 
> Someone using these phone Snom 300 with his own headset ?
We used to but the quality was horrifying. Since we changed to Plantronics Noise
Cancelling headsets everything is wounderful.
> We got horrible static noise on them?
Maybe the article Michiel pointed out helps you still the overall voice quality
of their headsets (at least the ones they sold last year) is awful.

Kind regards,
  JP

There is a difference in the biasing circuit for the microphones in the
headsets. Unfortunately there is no standard on the market. The snom phones
190/320/360 (let's say: type A) behave different than snom 300 (type B). So
there is always the need to have different headsets or different cables (Quick
Disconnect). Some headsets are just working with one type (those with extra
amplifier) and other devices seem to work in both environments, but that's
not really true. The headsets are always working much better with just one type.
So if someone has a headset designed for type A, he'll have a bad quality
while connecting it to type B phones although he is able to here something.

 

Don't forget to have a connection to an earth-signal (e. g. shielded
Ethernet cable to PC/switch or earth-grounded power supply).

 

Hope this helps, CS


	-----Original Message-----
	From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Koopmann,
Jan-Peter
	Sent: Sunday, July 16, 2006 1:31 PM
	To: Asterisk Users Mailing List - Non-Commercial Discussion
	Subject: RE: [asterisk-users] Snom 300 headset with static noise
	
	On Freitag, 14. Juli 2006 10:13 Adri? Vidal wrote:
	
	> Someone using these phone Snom 300 with his own headset ?
	
	We used to but the quality was horrifying. Since we changed to Plantronics
Noise Cancelling headsets everything is wounderful.
	
	> We got horrible static noise on them?
	
	Maybe the article Michiel pointed out helps you still the overall voice quality
of their headsets (at least the ones they sold last year) is awful.
	
	Kind regards,
	  JP
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>
> Have a look at this document:
> http://www.snom.com/wiki/index.php/
> FAQs#Q:_Why_is_there_a_humming_noise_when_using_the_headset.3F
>
> Michiel


Thanks Michiel, that was the  second thing i  do, phone was connected to
a well powered/connected switch.

I could understand a chep headset would do that, but a 30 euro headset maybe
is not going
to be the best... but should perform quite better.

Maybe is a design fault , because the same headset connected into another
voIP phone runs fine. Snom maybe have gone too cheap and too bad for his
snom 300 ?


-- 
Adri? Vidal
adriavidal@gmail.com | adria@adria.homeip.net
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