Called my land line four times today; In typical fashion, I pick up but don't say anything - hear a call center in the background; a girl in an American accent yawns, then hangs up.  Calls me back 20 seconds later, same thing - answer, don't say anything - she says "Well, it's 4 o'clock...only one more hour of people hanging up on me <giggles>....what is up with this caller?" (referring to me) - I'd block but my provider is limited to 30 numbers.  I block my caller ID, call back, and hear a message - it's "Toll Brothers" thanking me for interest in one of their small group meetings, asking me to leave my name, number, and the number of people in my group.  Nah....but I did advise in the message that they are calling people on the do not call registry (which doesn't seem to do much).