This is likely telemarketing. We don't pick up if we don't recognize the number on caller ID. Our outgoing voice mail now says this line is not to be used to solicit business, money or survey responses. They didn't leave a message and they've called here before. Caller ID says "Home Security."
Phone screen displayed SUNNYVALE CA and this number. I answered it just to see who was calling so I could report it here: "Don't hang up! Your home has been selected to receive a General Electric wireless security..." Click. I hung up and added this number to my carrier's call-block list through the *60 function.