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To: Jon K. who wrote (4908)	11/20/1998 3:38:00 PM
From: Scrapps	Respond to of 9236

Thanx Jon, I hadn't listened to the NPR audio.

To: Jon K. who wrote (4908)	11/20/1998 3:57:00 PM
From: Scrapps	Read Replies (2) \| Respond to of 9236

ADSL Homework assignment....... zdnet.com

To: Jon K. who wrote (4908)	11/20/1998 9:23:00 PM
From: Scrapps	Respond to of 9236

NEW YORK (Wired) - After years of broken promises from carriers, MCI WorldCom Inc announced it would begin offering digital subscriber lines, a technology that could speed download times tenfold. The company said last week it will deliver 400 points of presence, dialup-access points known as POPs, for DSL by year's end, which could yield speeds of up to 768Kbps. DSL experts hope that a carrier of MCI WorldCom's size can overcome technical problems that have plagued other service providers that attempted to roll out DSL. ''The biggest obstacle in DSL deployment is getting physical co-location in the local phone companies' central offices, and MCI WorldCom is a big enough player that they're in the position to do that,'' said Frank Wiener, vice president of Hotwire DSL products for Paradyne, a maker of DSL technology. A wide variety of technical complexities have prevented the rollout until now, said Wiener, including incompatibilities among different versions of DSL. One of the keys to the success of MCI WorldCom's service will be the company's ability to deploy different versions of the technology in various situations, he said. MCI WorldCom has an advantage over regional carriers because the company can deploy the service on a wider scale. But it will still need to partner with local carriers, since DSL relies on carefully tuned equipment in the area of service. UUNET, MCI WorldCom's Internet division, will be charged with maintaining the service at the POPs and delivering to other partner ISPs, such as Earthlink and America Online. The DSL services will come in both business and consumer flavors, and speeds will vary according to a variety of issues, including service plan, geography, and equipment. DSL is asymmetrical, so sending data across the Internet-called upstream communication-is slower than receiving it downstream. Bandwidths for consumers will range from 64Kbps to 384Kbps upstream and from 384Kbps to 768Kbps downstream. Exact speeds will be determined by factors like how far the consumer lives from the phone companies' nearest central office. DSL services for businesses will be a symmetrical service available in bandwidths from 128Kbps through 768Kbps.