Method and system for routing calls as determined by a call...

Method and system for routing cellular calls to desired...

Method and system for sending text messages

Method and system for sharing transmission revenue between...

Method and system for tracking and billing vocoder bypass...

Method and system for verifying network resource usage records

Method and system of alerting callers to surcharges

Method and system of offering wireless telecommunication...

Method for accounting for user terminal connection to a satellit

Method for allocating a user identification

Method for applying different charge rates and for...

Method for ascertaining a billing tariff for a data transfer

Method for ascertaining a billing tariff for billing for a...

Method for automatic wireless replenishment using DTMF

Method for billing in a telecommunications network

Method for billing in a telecommunications network

Method for charging internet services via a mobile telephone

Method for charging internet services via a mobile telephone

Method for charging multimedia message service

Method for communication device control using coded marks