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Data network and PSTN telephony system

a data network and telephony technology, applied in the field of data network and pstn phone systems, can solve problems such as sound cards

Inactive Publication Date: 2006-04-06
SHELCAD ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0027] There is further provided according to another preferred embodiment of the present invention, a telephone communication system providing communication between a multiplicity of telephone instruments via at least one PSTN and at least one computer network, the system including a digital telephone switch controller interfacing between a local telephone instrument, the PSTN and a computer connected to the computer network and operative to analyze at least signaling information arriving from at least one of the local telephone instrument, the PSTN and the computer network and to perform local least cost call routing of corresponding voice information to a remote telephone instrument.

Problems solved by technology

However such devices still require a sound card in order to work.

Method used

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  • Data network and PSTN telephony system

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Embodiment Construction

[0047]FIG. 1 shows a network operative in accordance with a preferred embodiment of the present invention.

[0048] A telephone 10, which produces analog signals, is preferably connected to an adapter 12. The adapter 12 preferably translates those analog telephone signals into digital data so that the telephone can be connected via the adapter 12 to a standard computer 16. The adapter thus allows an ordinary telephone to appear as a peripheral device to a computer. The computer 16 in turn may be connected to a computer network such as a company LAN, WAN, or the Internet.

[0049] Preferably the adapter not only translates the data into analog signals but also arranges the data into packets with address information. Address information is of two forms. Firstly there is address information of a target address that the device wishes to communicate with. As the telephone 10 is a standard telephone it is unable to provide Internet addressing information in the standard format because individ...

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Abstract

An adapter is disclosed which allows attachment of a standard telephone to a computer as a standard peripheral. The adapter converts analog signals of the telephone to digital signals of the computer and vice versa. The adapter can also be a stand-alone device allowing the telephone to be attached to a computer network. The adapter, in this case, contains the computing power to support the necessary data network protocols, and PSTN signaling protocols. In this way voice communication is enabled over a computer network without requiring the computers to be equipped with sound cards.

Description

RELATED APPLICATIONS [0001] This Application is a Continuation of U.S. patent application Ser. No. 09 / 392,668, filed on Sep. 7, 1999, which is a Continuation-in-Part of PCT Patent Application No. PCT / IL98 / 00106, filed on Mar. 4, 1998, which claims the benefit of Israel Patent Application No. 120370, filed on Mar. 4, 1997. The contents of the above Applications are all incorporated herein by reference.FIELD OF THE INVENTION [0002] The present invention relates to data network and PSTN phone systems. BACKGROUND OF THE INVENTION [0003] The Internet telephone conversation is known. It has been possible for some time to have a voice conversation over the Internet, or other forms of computer network using a personal computer with a sound card, microphone, and speakers or an earphone. More recently there have been provided dedicated systems comprising a telephone keypad, receiver and screen. However such devices still require a sound card in order to work. [0004] Common methods for voice c...

Claims

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Application Information

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IPC IPC(8): H04L12/66H04L12/64H03M1/12H04M1/253H04M7/00H04M11/00
CPCH04L12/6418H04L2012/6429H04L2012/6472H04L2012/6475H04M1/2535H04M7/0006H04M7/0057H04M7/128H04M7/129H04M7/1295
Inventor SHNITZER, SHIMONHOHMAN, RONENTSURRI, SHLOMOSHAHAR, DORON
Owner SHELCAD ENG
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