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

Heimo Pentikainen

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Method for handling collision of calls

Telecommunications – Radiotelephone system – Including private cordless extension system
Patent

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Method for transmitting tariff data to a subscriber unit

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

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Procedure and system for ensuring emergency communication in...

Telecommunications – Radiotelephone system – Emergency or alarm communication
Reexamination Certificate

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Procedure for carrying out checking functions relating to...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Reexamination Certificate

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Profile ID: LFUS-PAI-P-347861

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