A communication system for distributing information
A conferencing system
A content filtering system for a mobile communication device...
A data access system and method
A data processing system for use in communications pricing...
A device for lifting a handset
A device for transparent interaction between an ic card and...
A digital line card for interfacing a remotely located...
A double talk activity detector and method for an echo...
A downlink activity and double talk probability detector and...
A dsl-compatible pots line card
A dynamically customizable smart phonebook
A facilitating fault tolerance in a rf amplifier system
A fraud control system for processing calls with an...
A handset port interface including dc measurement and...
A hybrid balance and combination codec filter circuit
A line interface module
A line powered coder/decoder (codec)
A low insertion loss current sense circuit
A low insertion loss current sense circuit for line cards