Fax routing system and method using standard fax machine and...

Fax transmission denial by sensing for CNG tones within a...

Fax transmission over congested or corrupted wideband...

Fax/data call receiving system and method

Fax/telephone switching device

Feature configurable telephone terminal

Fiber optic internet protocol network interface device and...

Fiber optic premise wiring system

Filter arrangement

Financial card authorization system

First party signalling for call waiting calling number...

Flexible telecommunications line interface

Form creating and ordering system

Free standing data transfer device for coupling a facsimile mach

Frequency responsive apparatus for reading a meter over a teleph

Full featured data access arrangement for use with modems

Full-duplex adapter for PBX telephone system

Fully digital call processing platform