Background noise then hangs up on voicemail

Missed several calls. Several different numbers with same message when I try and call back. Optus advises that the number you are calling has been disconnected......

Ring every day or so and hang up.

Rang and rang and then they hung up when answered.

called it back and stated it was disconnected

Lots of background noise when picked up then heavily accented person stating they're calling from custodian

Tried calling number back from land line and got message "Optus Advises The Number You Have Called Has Been Disconnected" - Add to Auto Reject List on Mobile .. Love this feature

I got offered a 7" tablet to attend a seminar on investment! I wonder if it was black and shaped like a penis?

tried to call back from private line and message said 'this number has been disconnected'
who the F are these people..nothing better to do..

left messgae but not who they are. spam

Hijacked number. Duplicate SIM. Optus disconnected number message.