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Telephone communication system

  • US 20030202503A1
  • Filed: 04/29/2002
  • Published: 10/30/2003
  • Est. Priority Date: 04/29/2002
  • Status: Active Grant
First Claim
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1. A telephone communication system, comprising:

  • a plurality of telephone stations based on an Internet protocol connected to a LAN network to form an IP network including at least one constituent unit;

    for each constituent unit of said IP network, comprising;

    SIP server means based on a protocol defied for controlling the start, end and change of a session of an interactive communication;

    resource management server means for the control storage and delivery of station state databases of said plurality of telephone stations, and application server means;

    said SIP server means, said resource management server means and said application server means being connected to said LAN internet for offering required services to said plurality of telephone stations, information transmission among said plurality of telephone stations and each of said server means being performed on a packet-wise basis.

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