On Mon, 18 Feb 2002, Benjamin Scott wrote:
> On Mon, 18 Feb 2002, Marc Evans wrote:
> >> How far are you from your CO (or DLC/SLIC box)? If you are over 18,000
> >> feet or so, DSL is out-of-the-question, regardless.
> >
> > The DLC/SLC issue is a far bigger problem ...
>
> It can also be an advantage. I live something like 9 miles (almost 50,000
> feet) from the CO. However, my lines come out of a SLIC hut less than 6,000
> feet from my house. When Vitts Networks was still in business, they used
> something they called IDSL. It was apparently an ISDN line hacked into
> working like DSL. It was limited to 144 kilobits/sec, but it was much
> cheaper than standard ISDN, and it did not require any special equipment at
> the SLIC station (other than a standard ISDN card).
Correct. The 2 B channels (64k each) and the D channel (16k) are passed
through the SLC just like they would be for ISDN, but on the ends the
equipment doesn't require any ISDN signaling. Some companies will offer
PPP through this, which with compression (both VJ and payload) can result
in a very nice line configuration.
- Marc
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