Who called from 9013133214

When I answered there was no one on the line. Called the number listed and after a couple of rings someone answered and said good by.

Got a call from 901-313-3214 and they said they are giving away security systems and hung up

Against my better judgement I answered, then they hung up. Que Sera, Sera

This was a call that came to my home and I did not catch the call.  I called back and recording said goodbye.

number called and no one on the other end.  call went on for 10 seconds.