Just got a call.  This was the fourth call in the past week.  Caller ID says 'unavailable'.  There is no one at the other end--dead air and then they hang up.  Very annoying!  Any way to get this to stop???

Just got a call as well. It was just a buzzing sound and then they hung up. Annoying.

These calls are voice activated and of course are scams from India Call Centers. They use Voice over Ip phone connections, so you can not trace them. No Caller list will not work either.

Got call no answer at first, person answered with foreign actsent.  So knew it was solicitor, so I replied are you a solicitor get on with it, the person laughed and hung up !