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Method for billing a VoIP call in a communication system

  • US 20010047333A1
  • Filed: 04/05/2001
  • Published: 11/29/2001
  • Est. Priority Date: 05/24/2000
  • Status: Abandoned Application
First Claim
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1. A method for billing a VoIP (Voice-over-Internet Protocol) call in a communication system in which, the method comprising the steps of:

  • providing a calling party'"'"'s VoIP gateway is connected to a called party'"'"'s VoIP gateway through an IP network, the calling and called party'"'"'s VoIP gateways each including a VoIP trunk connection processor, an extension subscriber connection processor and a VoIP call processing central controller;

    determining, in the extension subscriber connection processor of the calling party'"'"'s VoIP gateway, whether a called party responds to a call from the calling party, and upon receipt of the response, informing the VoIP trunk connection processor of receipt of the response;

    receiving, in the VoIP trunk connection processor, the response information from the called party at the extension subscriber connection processor, assembling a response packet, and transmitting the assembled response packet to the calling party'"'"'s VoIP gateway through a VoIP call channel;

    checking, in the calling party'"'"'s VoIP gateway, the response packet out of the packets received through the call channel, and transmitting the checked response packet to the VoIP call processing central controller; and

    recording, in the VoIP call processing central controller, a call start time for the corresponding VoIP call using the response information received from the VoIP trunk connection processor.

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