Say what? I don't own a 211, but that surprises me greatly. I think every receiver I have owned has a phone line test function. But just thinking about this, the test function doesn't do much other than check for dialtone. This works with VoIP, but that doesn't mean the modem in the receiver can connect to the modem pool at Dish. One thing you could do is ask the receiver to check your account balance. That will cause it to dial out and make a connection to Dish. If it fails, then you know your line has a problem.