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Class Information
Number: 379/901
Name: Telephonic communications > Virtual networks or virtual private networks
Description: Subject matter for programmably effecting as needed, or for controlling, telephone networks, as distinguished from "hard-wired" networks. Sometimes called "software-defined" networks.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8312533 Virtual local area network switching device and associated computer system and method Nov. 13, 2012
8275113 Shared mapping of a station extension within a distributed, enterprise telecommunications system, to an associated telephone number Sep. 25, 2012
8213594 Method and apparatus for placing a long distance call based on a virtual phone number Jul. 3, 2012
8132247 Systems and methods for authorizing a client in an SSL VPN session failover environment Mar. 6, 2012
8127350 Multi-service VPN network client for mobile device Feb. 28, 2012
7533410 Architecture to support public voice VPN services over an IP network May. 12, 2009
7505575 Method and system for processing telephone calls via a remote tie-line Mar. 17, 2009
7448080 Method for implementing secure corporate communication Nov. 4, 2008
7356138 Method of operating a virtual private network Apr. 8, 2008
7293023 Method for evaluating data in elements of a communications network Nov. 6, 2007
7274786 Method and system for processing telephone calls via a remote tie-line Sep. 25, 2007
7124189 Spontaneous virtual private network between portable device and enterprise network Oct. 17, 2006
7088812 Call management implemented using call routing engine Aug. 8, 2006
7020265 Method for transmitting information to remote site using dynamic transmission network Mar. 28, 2006
6975718 Automated route plan generation Dec. 13, 2005
6879680 Method of and system for extending internet telephony over virtual private network direct access lines Apr. 12, 2005
6834105 Method for operating a private telecommunications network Dec. 21, 2004
6816587 Virtual private line connection system and method Nov. 9, 2004
6807269 Call management implemented using call routing engine Oct. 19, 2004
6751306 Local on-hold information service with user-controlled personalized menu Jun. 15, 2004
6741690 Network server May. 25, 2004
6724876 Method and apparatus for effecting telecommunications service features using call control information extracted from a bearer channel in a telecommunications network Apr. 20, 2004
6711252 Method and system for implementing intermediary services in a telecommunication system Mar. 23, 2004
6704406 Automated route plan generation Mar. 9, 2004
6668052 Method and system for signaling in a telecommunication system Dec. 23, 2003
6597778 Method for setting a number plan and providing a service for an advanced intelligent network subscriber in a communication network Jul. 22, 2003
6567514 Method and system for processing telephone calls via a remote tie-line May. 20, 2003
6516058 Voice network access system Feb. 4, 2003
6480595 Method of communication through leased line in virtual private network Nov. 12, 2002
6453034 Method of and system for extending internet telephony over virtual private network direct access lines Sep. 17, 2002
6449344 Communication system Sep. 10, 2002
6430176 Multimedia channel management through PSTN signaling Aug. 6, 2002
6363142 Network directed call pickup service Mar. 26, 2002
6298120 Intelligent processing for establishing communication over the internet Oct. 2, 2001
6205216 Apparatus and method for inter-network communication Mar. 20, 2001
6169797 Method for setting up telecommunication connections Jan. 2, 2001
6141409 Method of operating a virtual private network Oct. 31, 2000
6097804 Method and system for completing a voice connection between first and second voice terminals in a switched telephone network Aug. 1, 2000
6094479 Computer telephony integration gateway Jul. 25, 2000
6084956 SS7 mediation for data network call setup and services interworking Jul. 4, 2000
6055303 Telecommunications services Apr. 25, 2000
6005929 Method of providing services to subscribers of a telephone network Dec. 21, 1999
5974133 Method and apparatus for facilitating communication across multiple locations Oct. 26, 1999
5920619 Regional centrex Jul. 6, 1999
5502816 Method of routing a request for a virtual circuit based on information from concurrent requests Mar. 26, 1996
5490212 Call-routing method for a virtual private network as well as service computer and exchange therefor Feb. 6, 1996
5303290 System for elminating glare in virtual private line circuits Apr. 12, 1994
5282244 Virtual signaling network method Jan. 25, 1994
5103475 Processing of telecommunications call billing data Apr. 7, 1992
5014262 Apparatus and method for detecting and eliminating call looping in a node-by-node routing network May. 7, 1991

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