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Question About AT&T Cordless Telephone 8510T
my delcom duplex interphone model BE 777 does not...

my delcom duplex interphone model BE 777 does not seem to be working. When I plug in both the instruments the green lights are coming on.. But when I attempt to pick up the phone and talk there is no voice communication functionality....just a slight buzzing sound...

Asked by sridhar on 08/08/2013 1  Answer

ManualsOnline posted an answer 11 years, 3 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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