Phone rang.  I answered.  No one spoke.  They hung up.

I get a call from this number 2 or 3 times a day. One one occasion there was a woman on the line with an accent asking for my 15 year old son. When I started questioning why she was asking for him, the caller hung up. I am tired of getting calls 2 or 3 times a day from this number.

This caller knew my name and asked me if I had respiratory aliments, such as asthma.  I said I did not care to answer any questions.  The caller tried to keep me on the line by saying that there were only five questions.  I hung up.  Caller called back immediately.  I did not answer.