Hi: I am in the process of finally getting a cell phone. I would like to get rid of my verizon landline phone system and just go with a cell phone for my phone service in house as well. My question is - can I still subscribe to Direct tv without a phone line plugged in. I know you don't have to have you line plugged in all the time but can I even continue with Directv with just a cell phone system? Thanks a lot...