I think this might be just a bad handset but anyway I have a 9640 attached to version 6.0 ip500 unit evry other ip phone is fine (this is the only 9640). I get bursts of white noise when Im talking, if im silent then there is no interference. Any ideas?
Bad cabling ?
Power cables along the utp cables ?
If it is powered with a brick instead of POE then put it on the other lan port of the ipo and try again.
no worries. as to why, i seem to remember MattKnight posting that they changed the way call recording works from 4.0 and every so often it causes this issue.
I used to have it on my 1616, couldn't be bothered to fix it as it only affected me, somewhere between 5 and 6 it fixed itself.
other 1616s on my system didn't have the issue at all. it's very very hit and miss.
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