Call management via television

Call notification feature for a telephone line connected to the

Call optimization in ad-hoc conference calls

Call optimization in ad-hoc conference calls

Call processing architecture

Call processing arrangement for ATM switches

Call processing control system

Call processing device and method

Call processing method and apparatus for mobile terminal in...

Call processing method for distributed switching

Call processing method in radio telephone using spread spectrum

Call processing system for controlling connections in a communic

Call processing system with an operator assistance in a telephon

Call processing using logical channel assignments

Call processing with voice over internet protocol transmission

Call processor for a satellite communications controller

Call progress detection circuitry and method

Call progress signal monitor and method for telephone systems

Call queuing service termination

Call record broadcast via an interface in a telecommunications n