It probably varies from market to market, but on my system I can hook into any wall jack the computer modem is plugged into. But I made sure all of my wall jacks were turned ON when the guy came to do the upgrades, just so I could do that. I had all of my wall jacks upgraded when I got cable internet, but I also got digital cable package.

Granted I live in a little po-dunk Tennessee town and the cable company is privately owned, so our system is probably several years behind "current" LOL