Telecommunication call billing method and apparatus
Telecommunication management system and user interface
Telecommunication system for handling basic and supplementary fu
Telecommunication system with user modifiable PBX terminating ca
Telecommunications circuit provisioning and administration syste
Telecommunications network configuration model for data manageme
Telecommunications service control method in intelligent network
Telecommunications service creation apparatus and method
Telecommunications service provisioning
Telecommunications system and method for processing call-indepen
Telecommunications system for controlling access to a destinatio
Telecommunications system for dynamically selecting conversation
Telecommunications system having separate switch intelligence an
Telecommunications system with notification hold
Telephone addressing system
Telephone call processing arrangement based on calling and calle
Telephone calling method and apparatus
Telephone circuit
Telephone communication system having a locator
Telephone communication system having a locator