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
Configuration for charging in a telephone network and method...
Configuration tracking system
Congestion control system for telecommunications
Consolidated billing system and method for use in telephony...
Consumer contact toll optimizer
Control of prepaid balance status notification
Controller for accessing services from multiple providers of ser
Controlling setup or continuation of a call charged from a...
Cost negotiation for communication sessions
Cost negotiation for communication sessions
Credit calling service system