Question about Panasonic KX TC280B Cordless Phone (KX-TC280-B)

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No lIne sound and make others extension phone busy sound when calling

My Tc-280 got some problem, I had other extension phone on the same line, when calling income will become busy sound ,when I disconnect tc-280 from lines the other phone is back normal , and TC-280 got heavy noisy , I doubt the circuit got some problem, can anyone help to repair it ? Many thanks.

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To prove circuit is okay you need to swap phones

It probably is the phone extension line (from the wall)
to the phone.

Again you need to test phones using a known working phone cord. When you rule out the circuit and line cord then you can only point to the phone itself or the demarc point.

GL

Posted on Mar 20, 2008

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