DSL service questions

[bscott at ntisys.com]

On Thu, 19 Jun 2003, at 3:05pm, jason at sigio.com wrote:
> When I lived in KY, I had ADSL from an ISP other than the phone company,
> and this was installed on the same lines as the phone, but didn't require
> filters. Apparently, it ran over the "other two wires."

  POTS, by definition, uses a single pair of wires.  However, most
residential telephone wiring uses two-pair cable.  The red/green pair
carries the POTS signal.  The black/yellow pair can be used as a "second
line", and often is.

  I can only assume that, in the case above, the installer did something at
the Network Interface to bring the DSL in on the black/yellow pair.  They
might have provisioned a dedicated circuit, or maybe they just installed the
filter at the Network Interface.

-- 
Ben Scott <bscott at ntisys.com>
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