I have two receivers a 622 & a 301. The 622 is connected to the phone line and the 301 is not and both work fine. I would like to upgrade the 301 to a DVR but have no phone line available. Is there a DVR that will work without a phone line like the 301. Also thinking about discontinuing land line phone and useing cell service only. What will happen to my 622 if it has no phone service? Anyone know if dish is going to drop the $5 no phone charge?