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Question About BT Telephone BT Big Button 100
Rings before 1571 is activated...

How can you set the Big Button 100 to increase the number of rings before it activates the 1571 services..seems to ring just twice before call ends and 1571 switches on..

Asked by Martin on 04/06/2010 0  Answer

ManualsOnline posted an answer 14 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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