Please download the dossier by clicking on the dossier button x
×

Method and apparatus for establishment and management of voice-over IP virtual private networks in IP-based communication systems

  • US 7,486,684 B2
  • Filed: 09/30/2003
  • Issued: 02/03/2009
  • Est. Priority Date: 09/30/2003
  • Status: Active Grant
First Claim
Patent Images

1. A method for establishing an Internet Protocol (IP)-based Virtual Private Network (VPN) for a voice call between an originating point of a customer and a terminating point, the originating point associated with a first node and the terminating point associated with a second node, the method comprising the steps of:

  • (a) determining the relative location of the terminating point with respect to the originating point, including collecting and analyzing dialed digits of the terminating point to determine whether a PSTN gateway function or an inter-VPN gateway function processes the voice call;

    (b) determining one or more IP addresses to propagate voice packets of the voice call from the originating point to the terminating point;

    (c) adding, at the first node, a VPN identifier to each voice packet of the voice call;

    (d) propagating the voice packets from the first node to the second node; and

    (e) removing, at the second node, the VPN identifier from each voice packet of the voice call;

    wherein the VPN identifier identifies a VPN of the customer.

View all claims
  • 9 Assignments
Timeline View
Assignment View
    ×
    ×