Chirping sound

From: MHEO (mhevensen@attbi.com)
Date: 01/27/03 

From: "MHEO" <mhevensen@attbi.com>
Date: Mon, 27 Jan 2003 10:12:29 -0800

I have recently noticed a "chirping sound" coming from my
speaker....random time intervals...about 4 tones in rapid
succession.....can anyone tell me if they know what this
is from?

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