4. Telephonic communications
  5. With usage measurement
  6. Call traffic recording by computer or control processor

Nobuaki Kitazumi

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Group communications switching method, subscriber terminal...

Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate

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Intelligent network system

Telephonic communications – With usage measurement – Call traffic recording by computer or control processor
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2636955

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