[asterisk-users] Snom 300 headset with static noise

[Christian Stredicke]

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 at lists.digium.com [mailto:asterisk-users-bounces at 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 Adrià 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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