Facsimile mail apparatus
Facsimile service
Facsimile service
Facsimile store-and-forward switching system
Facsimile terminal concentration equipment and remote...
Facsimile terminal concentration equipment and remote...
Facsimile transmission system
Fail to pots architecture
Fall through telephone directory
Farthest advance circuit for a remote station dictating system
Fast equalizer training and frame synchronization algorithms...
Fastening arrangement in a telephone instrument
Fastening arrangement to keep together the parts of a...
Fault characterization using information indicative of echo
Fault detection method and apparatus for telephone lines
Fault location in a telecommunications network
Fault location on a telecommunications network
Fault management system for a communications network
Fault management system for a communications network
Fault management system for a communications network