Method and system for the processing of tariff data

Method and system for toll carrier selection

Method and system for toll charge and rate inquiry service for p

Method and system for transferring an administrator and...

Method and system for translating call processing requests

Method and system for transmitting information to a...

Method and system for transmitting useful data between...

Method and system for updating a call rating database

Method and system for using bad billed number records to...

Method and system in an overload situation in a telephone...

Method and system of rating in a charging system

Method and system to connect consumers to information

Method and system to extend functionality of voice...

Method and telecommunications network for control of mass callin

Method and testing device for verifying the charge invoicing...

Method for achieving third-number call billing

Method for acquiring statistics in a telephone network employing

Method for allowing a called party to allocate call payment...

Method for automatically replenishing pre-paid calling units...

Method for backing up call charge data of a telephone...