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

Elaine I. Sze

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Calling party-paid wireless telephone service

Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent

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Location-dependent cellular service profile

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent

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System and method of using local number portability (LNP) to...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-646334

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