Who called from 9725884775

Just Dead Air on the line.

When they call there is nobody on other end. When I call the number back it says it's a medical services company. Gives you options, Press 1 to be connected to a representative, Press 2 to leave a call back number and Press 3 to be removed from the calling list.

Never has left message.  I've blocked this number.  Tired of Robo calls I'm getting inspire of having signed up for no Robo calls.