Fort Lauderdale, FL--January 23, 1997--Lucent Technologies (Murray Hill, NJ) proposed key elements of an industry standard for 56 kbps modem transmission to a standards committee meeting here. The ad hoc committee was created by the U.S. Telecommunications Industry Association and the Electronics Industry Association in November to establish an interim U.S. standard for "pulse code modulation" modems that can connect PCs to the Internet over regular analog phone lines at up to 56 kbps.
Lucent's Microelectronics Group was among the first companies to announce 56-kbps technology last fall, and is now selling modem chip sets based on patented technology from Bell Laboratories, its research and development arm.
Because users can only achieve 56-kbps connection rates when modems are compatible at the end user's site and at the Internet service provider's central site, Lucent has taken an active role in unifying the communications and computer industries behind an interoperable 56-kbps protocol.
Last November, Lucent reached an agreement with Rockwell Semiconductor Systems to make their respective 56-kbps modem technologies interoperable. More than 400 computer and communications companies have already announced support for this interoperable protocol, called K56flex.
To protect customers' investments as formal standards evolve, Lucent has designed its 56-kbps modem chips to be easily upgradeable with a simple software change that can be accomplished via the Internet.
Lucent has already proposed several elements of a standard at the first two meetings of the TIA's ad hoc PCM committee.
At today's meeting, Lucent engineers proposed a method for quickly determining whether, based on the way the telephone call was routed, it can support 56-kbps transmission, or whether the modem must revert to more conventional speeds, such as 33.6 kbps. Lucent will also discuss the results of tests they have conducted on 56-kbps transmission over actual phone lines, and propose techniques for achieving high-speed upstream rates substantially faster than 33.6 kbps.
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