A couple of months ago, I had my receivers changed out to two-H24's and one H25. Since then, the receivers are calling into Directv 866-709-2073 as many as 40-50 times a day. About once a day I will get about a half a ring from a incoming call from this 866 number. The calls are about 55 seconds in duration. I know if I disconnect the receivers from my land line it will stop the calls, but I also lose my caller ID feature which I like. Anyone have any ideas what may be causing this, and how I can stop it. I have talked to tech support a couple of times and they don't have a clue. Any suggestions?