4. Telephonic communications
  5. With usage measurement
  6. Call traffic recording or monitoring

Markus Hollas

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Method and telecommunications network for control of mass callin

Telephonic communications – With usage measurement – Call traffic recording or monitoring
Patent

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Method, exchange and telecommunications network for...

Telephonic communications – Plural exchange network or interconnection
Reexamination Certificate

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Profile ID: LFUS-PAI-P-982147

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