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Switch having virtual access network capability and switching system thereof

  • US 6,625,143 B1
  • Filed: 12/03/1997
  • Issued: 09/23/2003
  • Est. Priority Date: 06/18/1997
  • Status: Expired due to Fees
First Claim
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1. A switch as a first switch arranged in a network where a plurality of switches including the first switch and a second switch are interconnected, comprising:

  • a virtual access network unit making the second switch perform a process of communication related to a subscriber accommodated by the first switch;

    a storing unit storing attribute information which indicates whether or not the subscriber accommodated by the first switch uses said virtual access network unit;

    a subscriber accommodating unit accommodating a calling party who is indicated as a virtual access network subscriber based on the attribute information stored in said storing unit among subscribers accommodated by the first switch in said virtual access network unit;

    wherein a plurality of virtual access network units are included, and the plurality of virtual access network units are respectively connected to different switches among the plurality of switches.

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