I rang back the number (07) 3186 9995, spoke with someone who hung up right away

Have been getting called from Brisbane numbers repeatedly the past few weeks. They rarely talk, except one woman who spoke to me about my day and what I studied before hanging up mid sentence. Definitely a scam

Tried to call back and got a message to say the number was disconnected

I answered the telephone call yet did not say anything and neither did the other end. After about 30 seconds, I heard a quick movement of the presumed phone in their hand, before hanging up.

If you get these types of calls that you don't recognise, DO NOT say anything first. These types of call try and gather your voice.

Retuned the call. Supperise received a Telstra message saying the number was not connected

Didn't leave a message