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Question About AT&T Answering Machine att 1721
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I have a AT&T answering machine, Model 1721, and I do not have the owner's manual. I need to change the number of rings allowed from 2. Please help.

Asked by Brenda on 06/11/2010 1  Answer

ManualsOnline posted an answer 13 years, 10 months ago

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

Cameron posted an answer 12 years, 9 months ago

0 All you do is find the ringer switch on the back and change it. The choices are 2, 4 and TS,whatever that means.
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