Making a phone call from an electronic device having an...

Measurement data record method for detecting hybrid mobile...

Message communication charging

Method and a system for charging a streaming connection in a...

Method and apparatus for authorizing use of cellular...

Method and apparatus for billing a neighborhood cordless...

Method and apparatus for billing a neighborhood cordless...

Method and apparatus for billing for usage-based group...

Method and apparatus for billing of wireless telephone calls

Method and apparatus for calculating call charge rates in a...

Method and apparatus for charging of communications services

Method and apparatus for charging of communications services

Method and apparatus for efficient law enforcement agency monito

Method and apparatus for generating billing data in a...

Method and apparatus for generating billing data in a...

Method and apparatus for generating service billing records...

Method and apparatus for generating service billing records...

Method and apparatus for monitoring subscriber talk-around usage

Method and apparatus for monitoring usage patterns of a...

Method and apparatus for offering subscribers access to unused c