When my DirecTV receivers were initially installed they didn’t have a phone line attached to them however they also did not have Ethernet attached to them. The default a installation technician will use is to have them in the DirecTV system as having a phone line attached. The phone line being attached allows for you to purchase PPV (Pay Per View) movies, VoD (Video on Demand) movies, and used to allow for upgrading of the receiver software. Since I never had a phone line attached to the receiver I would always order my PPV movies online. It also appears that all software updates now happen over the satellite signal to keep your receiver up to date. I always wished I was able to purchase Pay Per View movies directly from my remote to save the hassle of signing into directv.com and having to purchase the movie that way.