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

Wenjun Zhao

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Method of generating charging identifier in internet one...

Telephonic communications – With usage measurement – Call charge metering or monitoring
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Method of implementing IP telephone gatekeeper group and...

Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate

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