I have many Poly installations and have not had this issue, EXCEPT - the one time we permitted a customer to run their computer data through the telephones.

We also have noticed a poor server config can cause this in testing.

Noticed when I had one person building * servers using Debian. Had them rebuilt with FC4 and have no issues - yet:)


On Jan 24, 2006, at 6:40 AM, Jeff Herring wrote:

OK...Let's be clear...

1) The phones are not physically near each other.
2) It's not feedback from speaker/mic interaction.
3) Let me repeat...The squeal is not feedback, it is more of
   a chirping sound at the leading edge of the spoken word.
4) I don't have 25 bad phones...they all do the same thing.

-Jeff H.


At 07:11 AM 1/24/2006, Chris Mason (Lists) wrote:
Adam Goryachev wrote:

On Mon, 2006-01-23 at 20:46 -0500, Jeff Herring wrote:


Issue: horrible echo (and squeals, and "underwater-like" sound) on speaker
phone when calling from extension to extension.


The squeal is called feedback and comes from the sound looping back to the input. I suspect you have a bad phone, I have 100 of these phones in use with asterisk and have no problems with them.


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