AT&T demos new simultaneous voice/data technology at Comdex '94.BEDMINSTER, N.J.--(BUSINESS WIRE)--Nov. 9, 1994--Next week, AT&T will unveil another new technology designed to simplify the way businesses communicate. At the COMDEX/Fall'94 trade show (Nov. 14 - 18) in Las Vegas, AT&T Global Business Communications Systems (GBCS GBCS - Global Business Communications Services GBCS - Global Business Communications System GBCS - Green Bay Christian School (Green Bay, WI) GBCS - Ground Base Common Sensor) and AT&T Paradyne will demonstrate an extension of AT&T's VoiceSpan (1) A proposed satellite communications system from AT&T for interactive, multimedia applications that never came to fruition. (2) A modem technology for simultaneous voice and data transmission from AT&T. See SVD.(tm) technology that provides simultaneous voice and data transmission over a single analog phone The original telephone technology, which converts air vibrations into an analogous electrical frequency. Unless a key telephone system, digital PBX or voice over IP (VoIP) is used, most homes and small offices still use analog phones, and the local loop is mostly analog. Likewise, the first cellular phone systems were analog and are still widely used as a backup system. All new cellular systems that are deployed are digital. See local loop, AMPS, TDMA, CDMA and cellular generations. line. The new digital Simultaneous Voice and Data See SVD (Simultaneous Voice and Data) The concurrent transmission of voice and data by modem over a single analog telephone line. The first SVD technologies on the market were Multi-Tech's MSP, Radish's VoiceView, AT&T's VoiceSpan and the all-digital DSVD, endorsed by Intel, Hayes and others.. (communications) Digital Simultaneous Voice and Data - (DSVD) A technique supported by some modems for multiplexing compressed speech with digital data for transmission over a normal telephone line. DSVD isn't standardised yet, so generally you have to have the same make of modem at both ends for it to work. (SVD) technology provides users with seamless voice, data and video application interoperability between analog and digital, (e.g., ISDN,) facilities. AT&T VoiceSpan will extend corporate ISDN networks and applications to the Public Switched Telephone Network (PSTN), thus enabling users at remote locations that do not have ISDN networks to collaborate via their personal computers and telephones with users at other locations who are connected to ISDN networks. AT&T will also demonstrate one of the industry's first T.120 based multipoint SVD conference systems. This system makes it possible for PSTN based SVD devices and ISDN endpoints to support voice and data conferences. "VoiceSpan is scheduled to become an integral component of AT&T's WorldWorx A multimedia network service from AT&T that provides point-to-point and multipoint connections between remote videoconferencing stations.(tm) Solutions offering next year," said Jerry Prestinario, vice president AT&T GBCS. "When this occurs, AT&T will support the largest platform in the industry for simultaneous voice, video and data communications. Through our worldwide intelligent network, we'll provide connectivity to over 500 million endpoints around the globe. "AT&T is committed to making data communication as transparent to the end user as voice communication is today. Our new SVD technology moves us one step closer to our companie's vision of Universal Data Access." AT&T's SVD demonstration will take place during normal exhibit hours at COMDEX' 95, Booth I318, in the South Annex of the Las Vegas Convention Center. CONTACT: AT&T, Bedminster
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