Parallel split powering
Parallel-connected telephone use determining circuit in a cordle
Passive distributed filter system and method
Passive splitter filter for digital subscriber line voice commun
PC server telecommunications power system
PCM coder and decoder having function of two-wire/four-wire conv
Phone line splitter assembly
Placement of a transmit predistortion filter with respect to...
Point-to-multipoint communication system and method
Portable remote terminal apparatus
Portable telephone set
Positive temperature coefficient thermistor device
Power and signal transmission system
Power circuit for telephone accessory devices
Power conservation system for a modem in a computer system
Power cross detection using loop current and voltage
Power dissipation manager circuit for an interface device feedin
Power feed circuit providing both on-hook and off-hook power for
Power feed for Ethernet telephones via Ethernet link
Power feed for network devices