This week's hard copy of Network World has an article (pg. 14 "Heavyweight backing doesn't ensure DSL delivery" ) describing the problems of living up to the recent DSL .lite hype - not the least of which is an ITU first draft standard would be considered at the absolute EARLIEST in October. So even IF we get the RBOCs to go along (BIG "if"), as has been often suggested, no deployments until '99 at earliest.
And SBC is on record saying that they will let customer demand drive DSL deployment, just as they did with ISDN.
Concerns of interoperation (which a standard hopefully, but not necessarily, will address) were also raised in the article. Also, the telephone noise issue was brought up, but a customer installable filter (as Globespan has announced) should address this.
The bigger hangup will be the CPE rat's nest. In addition to this, even without needing a truck roll to install the Y-splitter/filter at the NID, the RBOCs STILL have (an undefined) 30-40% of their plant with ADSL-killing inductance coils, which have been estimated to take 30+ man hours to find/fix... for instance, it's possible that your neighbor may not have them and you do, so if you buy your highend Presario ADSL preloaded, and your line hasn't been RBOC checked and cleared - it may be tough luck.
(As always - IMO) when dealing with the Bells, their aging, problematic copper plant and this technology, be prepared to wait, and possibly lose.
"7 come 11"
Steve |
