“Calling party pays” cellular and prepaid...

Access gateway record suppression

Accounting method and apparatus for communications network

Accounting of data transmission costs in a mobile radio network

Accounting of data transmission costs in a mobile...

Accounting system in a communication network

Adaptive load and coverage management system and method

Advanced air time management

Advertisement presenting and charging system

Allocation of internet protocol (IP) multimedia subsystem...

Analog-to-digital transition: selecting the optimal cellular rad

Anonymous electronic transactions

Apparatus and method for billing in a wireless communication sys

Apparatus and method for credit based management of...

Apparatus and method for credit based management of...

Apparatus and method for generating billing data according...

Apparatus and method for managing call billing records

Apparatus and method for optimizing wireless financial transacti

Apparatus and method for real-time rate changes for...

Apparatus and method for telecommunications services