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Question About AT&T Cordless Telephone 5927B
There are 4 phones....basement (line 1) or the pri...

There are 4 phones....basement (line 1) or the primary base with the answering machine is working......but other 3 handsets are reading "NOT REGISTERED"? How do I fix? Can't find the manual.........thank you.

Asked by dan oneill on 04/09/2015 1  Answer

ManualsOnline posted an answer 9 years, 7 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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