Billing for communications usage
Billing formatter for telephone systems utilizing intelligent pe
Billing in the internet
Billing method and system, and billing server
Billing method for telecommunication service based on fixed fee
Billing scheme for a telecommunications network
Billing system
Billing system
Billing system
Billing system
Billing system and method for database-queried...
Billing system for telephone signaling network
Billing systems and methods for communication networks...
Broadcasting of different tariff periods in a telephone system
Buffer for connection data
Call admission control method and communication system to...
Call and circuit state machine for a transaction control...
Call authorization and billing message routing capability
Call billing and measurement methods for redirected calls
Call center management system