4. Telephonic communications
  5. With usage measurement
  6. Call charge metering or monitoring

Shiqian Li

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Method and system for implementing roam restriction

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate

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Method of ensuring call processing for intelligent user

Telephonic communications – With usage measurement – Call charge metering or monitoring
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2322835

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