> The license says you can just provide AT&T with a URL. > Is that http://www.debian.org/distrib/something? > Should we considered AT&T notified? > End of discussion?
No. One (just one) reason for this it's that if AT&T goes away, you can longer notify them so you can distribute the software. The same happens with asking to monitor a website. These things act like termination clauses.
