Computerized telephone accounting system
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 method and system in an exchange
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...
Converting a toll calling area to an extended area service
Correlation and enrichment of telephone system call data...
Cost negotiation for communication sessions
Cost negotiation for communication sessions
Credit calling service system
Customer billing relationships software