Who called from 5015157201

Missed a call from this number. Called it back 4 times and got a busy signal each time

This number called both my cell phones and I tried calling it back and I also got a busy signal each time.

This number called both my cell phones and I tried calling it back and I also got a busy signal each time. I would almost suspect its a scam as well.

Yup, they have done that on the home phone before.  I have a call blocker that I used to block it on the home phone (digi-tone works well for me and also signed up for the free service nomo-robo).

This "number" called my cell phone and left no message.  The majority of scammers call the home phone.

I called back and got that same message.