I'm not sure about the "no voice" bit. The frequencies are so different that
interference is not going to be a problem, but I guess it means that you
don't need filters. Telecom's higher-end DSL services, e.g. PON256 etc, are
delivered on separate pairs to voice, but I don't think that is for
performance reasons (I may be wrong).
If there is lower latency in the TCL network that would be due to a lack of,
rather than the presence of, interleaving. This lowers the noise immunity
but is probably not an issue on short lines.
Telstra (or rather Saturn) did indeed "roll out cabinets like madmen" in
Christchurch during 2000/01. Their new boss promptly pulled the plug when
she saw $100M going up in smoke for little return. Roadside cabinets with
fibre feeds and short copper drops are now standard architecture for both
companies, but generally only pay-in for greenfields situations where there
is no existing plant.

Steve
----- Original Message -----
From: "Matthew" <gossard@inspire.net.nz>
To: "Steve & Prue" <steve.eckett@xtra.co.nz>
Sent: Friday, December 12, 2003 6:20 PM
Subject: Re: Telstra ADSL

> Also, AFAIK telstraclear xDSL services are delivered on a brand new shiny
> copper pair with no voice. It's purely data.
>
> They also have very low latency compared to telecom's (due to
interleaving),
> and are supposed to be a lot more stable (brand new lines, compared to
some
> copper in the ground which is 20-30 years old).
>
> If TC could roll out it's roadside cabinets like madmen (for residential
> customers), i fear an awfully lot of people would defect from telecom's
> services to TC's.
>
> ----- Original Message -----
> From: "Steve & Prue" <steve.eckett@xtra.co.nz>
> To: <adsl@lists.unixathome.org>
> Sent: Thursday, December 11, 2003 7:48 PM
> Subject: RE: Telstra ADSL
>
>
> > James Cooper wrote:
> > Does the same hardware issues apply to using a Telstra ADSL Service as =
> > it does Telecom's Network?.
> >
> > The answer (I believe) is yes. Telstra use Ericsson DSL equipment rather
> > than Telecom's Nokia or Alcatel, but essentially it is just a different
> > brand of the same stuff. Both use PPPoA (ATM based) as the transport
> > mechanism, and the standard settings for both services are very similar.
> At
> > the copper cable level, Telstra's cables tend to be shorter than
Telecom's
> > (800m vs 4000m max). This gives an advantage of better connect speed,
but
> > obviously the coverage is less - restricted mainly to CBDs which is why
it
> > is marketed to businesses mainly.
>

-- 
This message is part of the NZ ADSL mailing list. 
see http://unixathome.org/adsl/ for archives, FAQ, 
and various documents. 
To unsubscribe: send mail to majordomo@lists.unixathome.org 
with "unsubscribe adsl" in the body of the message