Calling party-paid wireless telephone service
Calling-party-pays call processing for cellular and paging
Calling-party-pays call processing for cellular and paging
Calling-party-pays call processing for cellular and paging
Calling-party-pays call processing for cellular and paging
Centralizing storage and verification element for telephone netw
Charge information method
Charging for an IP based communication system
Charging for an IP based communication system
Charging for usage of a telecommunications network
Charging in a communication system
Charging method in telecommunications network
Charging unit price determination/information apparatus and comm
Circuit arrangement for suppressing interference signals on the
Circuit arrangement for telecommunications switching systems, pa
Circuit arrangement for telecommunications switching systems, pa
Circuit arrangement for telecommunications switching systems, pa
Circuit for generating metering pulses intended for presentation
Collaborative conference bridges
Collect callback