my phone prompt it's spam call. but I answered without talking, then it hung up without talking too. very annoying.

Missed the call but my phone marked it / picked it up as a scam call. Don't recognise the number

Caller: Active Offers - "Called with some great offer"

When I answered they hung up immediately. If you call back you get a automated message - listen to it... if you follow the prompts and you can remove your number from their list without having to speak to anyone.

I called back the number (03) 8400 6511 and reached vm that said I reached Easy Offers

robocall - silence then robo-voice says goodbye - likely validating there's a human attached to your number and/or capturing your name - block