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size=2>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.
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size=2>Don’t forget to have a connection to an earth-signal (e. g. shielded
Ethernet cable to PC/switch or earth-grounded power supply).
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class=616591805-17072006><FONT face=Verdana size=2>Hope this helps,
CS</FONT></SPAN></SPAN></P><BR>
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<DIV class=OutlookMessageHeader lang=de dir=ltr align=left><FONT
size=2>-----Original Message-----<BR>From:
asterisk-users-bounces@lists.digium.com [<A
href="mailto:asterisk-users-bounces@lists.digium.com">mailto:asterisk-users-bounces@lists.digium.com</A>]
On Behalf Of Koopmann, Jan-Peter<BR>Sent: Sunday, July 16, 2006 1:31 PM<BR>To:
Asterisk Users Mailing List - Non-Commercial Discussion<BR>Subject: RE:
[asterisk-users] Snom 300 headset with static noise<BR><BR>On Freitag, 14.
Juli 2006 10:13 Adrià Vidal wrote:<BR><BR>> Someone using these phone Snom
300 with his own headset ?<BR><BR>We used to but the quality was horrifying.
Since we changed to Plantronics Noise Cancelling headsets everything is
wounderful.<BR><BR>> We got horrible static noise on them?<BR><BR>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.<BR><BR>Kind
regards,<BR>
JP<BR>_______________________________________________<BR>--Bandwidth and
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