[plug] ADSL

[Craig Ringer]

> Here is a question that we have been pondering here, from time to time, 
> about ADSL; given that ADSL involves (relatively) permanent Internet 
> connection, and allows concurrent voice calls on the same line, and (I 
> believe) concurrent fax calls on the same line (Internet and (voice or 
> fax)), does ADSL allow concurrent Internet connection and dialup 
> connection to another system?

Yes, and I've done it on occasion. For example, I'll use a dialup at 
work to remain connected to iiNet's backup service when the DSL is down. 
When the DSL comes back up, cool - just disconnect the dialup. If the 
dialup account was with another provider, it would be quite possible to 
keep both up and running at the same time. You'd have to run some kind 
of smart routing, but there would be no issue with line sharing. Note 
that your 56k performance /may/ not be overly good with a line filter 
and a line shared with DSL, though.

Quite cool.

Craig Ringer