Dial up telephone conferencing system controlled by an online computer network Number:7,522,542 from the United States Patent and Trademark Office (PTO) owispatent

Title: Dial up telephone conferencing system controlled by an online computer network

Abstract: In a telephone conferencing system, a digital communication network such as the Internet is used to establish and control the telephone connections between multiple conferees with the telephone network being the means of exchanging verbal information. Each conferee may have a computer connected to the digital network, and each has an independent telephone instrument connected to the public switched telephone network. An in-charge conferee utilizes his computer containing appropriate software to initiate the conference and to control the participation of the conferees. The in-charge conferee sends digital control signals to a switch interface controlling a telephone switch as a gateway to the telephone network using SS7 control signals. These SS7 control signals include the commands by which the conferee telephones are rung up, brought on line, or dropped from the conference. The switch provides telephone status information back over the digital network, and the in-charge conferee, as well as other conferees provided with appropriate software, display this status information on their PC monitors.

Patent Number: 7,522,542 Issued on 04/21/2009 to Johnson, Jr.,   et al.

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Inventors:	Johnson, Jr.; Clark E. (Waunakee, WI), Solomon; Richard J. (Monson, MA), DeYoung; Tice F. (Fairfax, VA), Farber; David J. (Pittsburgh, PA)
Assignee:	Caritas Technologies, Inc. (Waunakee, WI)
Appl. No.:	10/705,571
Filed:	November 10, 2003

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Related U.S. Patent Documents

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	Application Number	Filing Date	Patent Number	Issue Date
	10087671	Mar., 2002	6661779
	09819079	Apr., 2001	6480474
	09587080	Jun., 2000	6266328
	09212786	Dec., 1998	6072780
	08918564	Aug., 1997
	60024592	Aug., 1996

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Current U.S. Class:	370/260
Current International Class:	H04L 12/16 (20060101); H04Q 11/00 (20060101)
Field of Search:	370/259,260,261,262-271,410,352-356 379/201,202,203-206,209,210,84,67,88,196

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