Called twice within half an hour! Left no message! I do not answer unknown numbers that's not in my contact list. I marked it " Do Not Answer" and blocked number!!
Just a REALLY GREAT FYI. I am a Comcast user. They have just instituted a wonderful option for ROBOCALLS. I now can stop all robo calling. I took them up on their offer for FREE ROBOCALL BLOCKING. It is WONDERFUL. Almost 90% is now completely stopped. I know it is a robocall because my phone rings ONE TIME then stops. Sure enough, I look up my "call history" and see it was a robocall. So great. My sanity returns. If you have Xfinity/Comcast, make sure you get it. It is done online and is FREE for you