Least mean power consumption in telecommunications systems
Leaving a message on a held connection
Lever device for a holder adapted to receive a hand-held...
Lid mechanism for electronic equipment or the like
Life safety audio system having a voice synthesizer and a consta
Lifeline telephony provision for voice over digital...
Lifestyle multimedia security system
Lifestyle multimedia security system
LIfestyle multimedia security system
Lifestyle multimedia security system
Lifestyle multimedia security system
Lifestyle multimedia security system
Light controlled telephone ringer
Light emitting device
Light emitting diode message waiting lamp circuit
Lighted telephone
Lighted telephone dial
Lightning protected maintenance termaination unit
Limiting amplifier for common mode feedback in telephone line fe
Limiting maximum gain in duplex communications devices...