Unsplit bipolar pulse forming line
Upgradable customer bridge
Variable block size adaptation algorithm for noise-robust acoust
Variable DC feed characteristic in a subscriber line interface c
VDSL splitter
Video voice separation system
Voice and data communications
Voice communication link interface apparatus
Voice conference system using echo cancellers
Voice notification for a battery alarm in a network...
Voltage alternating switch circuit
Voltage and protection arrangement for a telephone...
Voltage reference filter for subscriber line interface circuit
Voltage regulator control circuit for a subscriber line interfac
Weatherable outside electronic device enclosure
Weatherproof telephone network interface modules
Weatherproof telephone station protectors
Weatherproof telephone terminal apparatus
Wide-band high voltage amplifier for telephone exchange subscrib
Wideband telephone line interface circuit