Who called from 6013012280

Called and left no message. Callerid says Vicksburg MS. Sales Department for USA Vacations?

This phone number keeps calling my phone. No one ever answers but if u say, "hello" a computer generated voice says, "goodbye" and hangs up.

Keeps calling no response sick of it!

Yesterday and today I received this call.  Answered 3 times and heard 'goodbye'.  Caller ID
indicated Vicksburg, MS.

Received a call from this number. I had to say hello 3 times then heard a pinging sound and an automated voice said Good-bye. I have no idea who this is or why they're calling just to hang up but I do not want any calls from this number again.