Accounting/Billing Services TRIZ Cases

Distributed Equipment Identity Register checks block unauthorized devices during roaming by coordinating home and visited network entities.

A detection system identifies soliciting numbers by analyzing test call messages and iteratively tracing new target numbers.

Isolated domains on mobile devices enable third-party content management while preserving user privacy and data security.

Central tracking system intercepts communication signals to generate precise billing data.

A telecommunications data usage management system restricts application network access based on real-time compliance with defined usage policies.

Analyzing call detail records identifies indoor and busy-hour roaming locations, reducing the cost and time of traditional drive testing methods.

Nearby devices relay location data from SIM-less phones, restoring tracking when direct connectivity fails.

Icon manager ranks applications by activity level to refresh display layouts automatically.

A cellular clearinghouse authenticates dual mode devices to access wireless local area networks, eliminating multiple credential management.

A roaming traffic charging system routes requests to alternative provider OCS instances based on user selection and regulatory conditions.

A mapping table broadcasts frequency band and service indices to user devices for accurate icon display.

Segmented rate plans resolve the contradiction between network resource efficiency and subscriber adaptability by allowing dynamic frequency band selection.