Missed call. When I tried to call back I got a Telstra recorded message saying the number is disconnected.

I received three calls from this number today. I missed two of them. The third one I answered and the guy said hello to me about four times in a row, like he couldn't hear me, then hung up. When I returned the call, Optus advised the number is disconnected. I have now blocked this number.

Answered the call and after a second they hung up.

Missed call, no message & no idea what they wanted.

Same thing - missed call, tried calling back and said it was disconnected.

Rang once then stopped 7pm

The number is Optus. I was a former customer and they were offering me a package to go back with them

I just got a call from this number today  (about 12 noon, adelaide time) , so they are still operating. I didn't answer it, so I have no more info than that. I would normally have answered it, expecting it to be a call from my employers interstate office. but I'm on holiday so I ignored it (they woke me up from my lunchtime nap, too).

No one spoke.

Gosh, i didn't realize there are so many ppl got the same situation... this number started to call me early Jan, since then, I already got the call many times, and they called me again just now!! I am not in Vodaphone, but under 3.
Since so many similar cases happened, I just ignore this number from now on then... what an annoying thing though...