Who called from 9132322694

would like to know why this number keeps calling and leaves no message or is busy when I try to call back

Keep getting calls from this number and it rings busy when I call back also.  The only message left is someone saying "Hello?  Hello?"  It's obviously a computer-made call if the person has no idea they're on voicemail.

Same here -- they call my house constantly!

Just got a call from them on my cell phone. Couldn't answer because my phone froze. :/
But I have no idea who it is. Didn't leave a message.

I said "hello" several times and got no answer.
CID: "Info Quest"