It is more to do with the type of DSL connection, newer DSL lines are DMT,
the Cisco 678 supports both DMT and CAP(the other ?older? kind) but the
Cisco 675 only works with CAP

Sorry i do not have more specifics but google for some CAT vs DMT articles
and you are bound to find something.

 -munir

On Wed, 5 Dec 2001, uak wrote:

> All,
> I just got my (Cisco 678) DSL hooked up again (upon moving).
>
> I don't know the specifics, but there seemed to be some issue about
> Cisco 675 routers being incompatible (sp?) with the upgraded DSL that I
> now receive from Qworst.
>
> They sent me another router even though I did not request it.  It was the
> 675 and for some reasons, it would not have worked with my set-up anyway.
>
> Anyone know more about why 640K might not work with a 675?
> uak
> PS.  Thanks to everyone who clarified the obvious about that archive
> link:
> http://archives2.real-time.com/tclug-list/2000/Sep/msg00907.html
>
> On 5 Dec 2001, Doug Pomerenke wrote:
>
> > I have a Cisco 675 with the cable that I'm willing to sell.
> >
> > On Wed, 2001-12-05 at 01:07, K Hinze wrote:
> > > I am looking for a Cisco 675 or Cisco 678 DSL router with management cable.
> <snip>
>
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