Bob Tanner wrote:
> 
> Ick. Plugs into the Serial port right?
> 
> Then you'll need pppd and some sort of chat thingie.
> 
> --

Ick??  I thought external was easiest and best.  I don't plan on using
the other part of ISDN for phone or fax, purely data.  When I run the
setserial /dev/ttyS? I get an invalid flag: /dev/ttyS1  when run against
ttyS1 I get:

/dev/ttyS1, UART: unknown, Port: 0x02f8, IRQ:3  

Better info on my part now?  Yes, it's connected through a serial port. 
But for free, I'm not complaining....