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

Kari Kangas

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Method for controlling a credit customer call

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

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Space identification system

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

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Profile ID: LFUS-PAI-P-1222710

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