Charging for roaming users in IMS networks
Charging for telecommunications download services
Charging in a telecommunications system
Charging in communication networks
Charging in communication networks having split control...
Charging in communication systems
Charging method and charging system
Charging method and network system thereof, packet data...
Charging method and system for radio communication
Charging method and terminal equipment in the information...
Charging method and terminal equipment in the information...
Charging method for use in service providing system,...
Charging of subscribers with localized service areas in a...
Charging systems for services in communications
Circuit configuration for metering pulse recognition
Client-based context-based billing for wireless networks
Communication and proximity authorization systems
Communication and proximity authorization systems
Communication apparatus
Communication billing system