Fault monitoring and diagnostic system for telephony...

Fault recovery system and transmission path autonomic...

Fault tolerant dual port serial link controller

Fault tolerant interconnection networks

Fault tolerant subrate switching system

Fault-tolerant array of cross-point switching matrices

Feeder distribution interface for rural areas

Fiber optic circuit and module with switch

Fiber optic connector module

Fiber optic operations center

Fiber optic smart switch

Fiber optic telecommunications device

Fibre channel switching system and method

Field convertible telecommunications distribution pedestal

Field data distribution system with fiber optic converter

Filter network for a multi-tone receiver

Filtering of port data in a switching system employing...

Finding copied sim cards

Finite storage-time queue

Fire-alarm audible signaling system permitting selective...