OT: DSL/Modems

[Bill Vermillion]

When asked his whereabouts on Mon, Oct 25 13:03 , GCC Consulting took the 
fifth, drank it, and then slurred: 

> > 
> > With DSL it can be a capacitance that is 'shorting' the HF 
> > carriers.  Noise you can hear is usually more of a problem for 
> > the LF devices - eg things you can hear.  Noise you can't 
> > hear - interference from radio/tv/etc - will affect the high end.

> > > Since their DSL service is from Covad, I don't want Verizon
> > > messing with this line. DSL is fine.

> > > The easiest thing was to move this modem to a shared
> > > dial-up phone line. They are connecting to A 9600 BAUD
> > > connection for both dial-up connections they have to make.
> > > The interesting thing is the transmissions are actually
> > > going faster over the dial-up rather the shared DSL/phone
> > > line. Now it is possible that this line has been somewhat
> > > noisy for the last few years and has just gotten worse.

> > > As I said originally, this combination worked for over a
> > > year without a problem. Only since early Sept. did they
> > > start to have a real problem.

> > And since you have a time frame where this occurred some 
> > nosing around might give you the answer.

> > Has ANYTHING been added in the building.  Is it a building 
> > with more than one client - and if so check the wiring closet.
> > Has there been a new cell-phone tower put up nearby?

> This is in New York City and this office building is about 15
> stories. And yes, there have been new tenants moving in and
> out. This has occurred both on their floor and other floors in
> the building.

> > Are they in an area like we had here - with storm after storm 
> > after storm dumping huge amounts of water - and thus causing 
> > water penetration into the transmission lines.

> > If the dial-ups are going faster than the DSL and you don't 
> > want to contact COVAD/Verizon with the problem, it would seem 
> > logical to drop the DSL.

> The DSL connection is fine.  No lose in transmission speed. The problem is only
> on the dial-up side and only on this line.

I mis-understood what you wrote.  I got the impression DSL was
slower than dial-up.

And telco connections in large building can be a PITA.


-- 
Bill Vermillion - bv @ wjv . com