Hi Dub and others:
Regarding the competition offered by cable and xDSL:
a) As far as I am aware, two-way cable requires HFC cabling, which represents only about 20% of the cable plant nationwide. With ordinary coax, you need a telco return, which is not too attractive. I am aware of research on trying to send a return signal on coax, but these cables are terribly noisy, and the return capacity would not be large.
b) Regarding DSL competition, ADSL is not a credible competition, since it is asymmetric and highly inadapted to business needs. The threat would be from HDSL, and later HDSL2 (which will offer 1.5Gb/sec in both direcions on a single twisted pair). However HDSL2 modems are only under development, and I do not really think that pricewise HDSL2 will be competitive with wireless T1 with point to multipoint technology Remember that the telcos are getting huge revenues with their T1 lines. If they were to roll out HDSL2 at prices which would compete with WCII, their revenues would get a big hit. Ultimately, this is probably a bullet they will need to bite. However, this can only occur if they are allowed to expand into long distance, so that they can trade increased long distance revenues against lower local business revenues.
The bottom line: cable and networking companies have good PR, but this will never replace a cost advantage.
Best regards,
Bernard Levy |