Who called from 3129406896

A hangup, no message.

Caller: Chicago, IL

Justin from "Energy Supplier" regarding my Nicor gas bill (I have People's Gas).

I told him to put my number on their do not call list.

I called the number back, was on hold for 5 minutes and then an automated voice said good bye and disconnected me!

I called the number back, was on hold for 5 minutes and then an automated voice said good bye and disconnected me!

Voice mail just had someone say "Hello" a few times.  Human voice but not intelligent enough to know she was talking to an answering machine.