Collect credit card service
Communication assistance system and method
Communication charge calculating apparatus, control method...
Communication charge management system
Communication control system and communication control method
Communication control system and communication control method
Communication method and system
Communication method authenticating a personal station and...
Communication service control apparatus
Communication services method and apparatus
Communication system control method
Communication system for detecting an unauthorized intruder term
Communications protocol for least cost call routing system
Communications service billing based on bandwidth use
Communications system and method with call expenditure control
Compensating recipients of calls
Conditional purchase offer management system for telephone...
Conference billing system with ID tagging
Configurable charging system for a telecommunications...
Configurable profiling of data