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Method for dialing from internet extension to conventional extension

  • US 20110002326A1
  • Filed: 09/29/2009
  • Published: 01/06/2011
  • Est. Priority Date: 07/01/2009
  • Status: Active Grant
First Claim
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1. A method for dialing from internet extension to conventional extension, comprises an SIP Proxy server, an Internet extension, a Private Branch Exchange, a VoIP gateway and a conventional extension;

  • the SIP Proxy server, the Internet extension and the VoIP gateway are connected by Internet;

    the Private Branch Exchange, the VoIP gateway and the conventional extension are connected by conventional telephone lines;

    said method includes;

    when dialing from the internet extension to the conventional extension, it is not necessary to dial a telephone number of the Private Branch Exchange, just dial directly a telephone number of the conventional extension from the Internet extension, and then pass through the SIP proxy server, the VoIP gateway, the Private Branch Exchange to the conventional extension, no voice guidance is needed.

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