System and method for connecting portable information...

Details System and method for connecting portable information... System and method for connecting portable information...

2008-07-01

2008-07-01

Woo, Stella (Department: 2614)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C726S015000

Reexamination Certificate

active

10676074

ABSTRACT:
A system for connecting a portable information equipment and an extension telephone, comprises: an extension telephone connecting device for connecting the portable information equipment to an extension telephone system after authentication through a virtual private network (VPN); and a Voice over Internet Protocol (VoIP) connecting device for connecting the portable information equipment connected to the extension telephone system to the extension telephone connected to the extension telephone system by VoIP. This system enables a temporary staff to make a call from outside to an extension telephone system in a dispatched company while maintaining security.

REFERENCES:
patent: 6993360 (2006-01-01), Plahte et al.
patent: 2004/0006708 (2004-01-01), Mukherjee et al.
patent: 2005/0227670 (2005-10-01), Bicker
patent: 2000-244639 (2000-09-01), None
patent: 2001-265584 (2001-09-01), None
patent: 2001-331389 (2001-11-01), None
patent: 2002-297755 (2002-10-01), None
patent: WO 01/35616 (2001-05-01), None
patent: WO 01/78317 (2001-10-01), None
Japanese Office Action dated May 15, 2006 with English translation of pertinent portions.
Japanese Office Action dated Dec. 2, 2003 with English translation of pertinent portions.
“Mastering IP Telephone”, Network Magazine, pp. 137-159 (Nov. 2002).
H. Konetomo, “Point-Illustrated VPN/VLAN Textbook” (1999).

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