Who called from 6152292895

alarm systems

Caller said Hello and never said another word.  Asked "could I help you"?   Then I said Hello again.  Finally told him not to call me again and I hung up.     Happened at 1:22 pm on 6/11 with Unknown Name on the phone printout.

Answered, had typical dead air, hung up. Did not give a chance to speak.

called approx 4 times, said he was with a warranty ( car ) told him early that the car was new, and covered with gm warranty, told hime we went to crest Metro Center Blvd
last time he called 7-13-15 3;46 hrs we said we was going to turn over to legal dept and would sue him he slammed phone down.

how annoying.  how can i make this stop.   i can't even get someone to say something when i do answer.