Called in the morning,  didn't recognize so I did not pick it up.  They left no voice-mail.

Called my CELL phone.  Swiped to Voice Mail.  No message left.

Called my cell phone which is on DNC list. Annoying female voice tried to sell me a GE home security system. Would not even stop talking for me to respond. I tried to tell her that my home isn't eligible for something like that. (As an apartment dweller, I can't choose what alarm system I have. The complex management decides that.) But she would not listen and kept talking, so I hung up.

Called me & left no voicemail.
ODD.

Called me and told me that I was selected for some trip to Orlando. I asked a number to call back and she hung up on me.