I missed the call from this number and called back.
I just get an engaged tone.
Same as if the call is blocked.

So I don’t know who it is but they are not contactable.

Scam (03) 9340 8156 rang me but would not answer call back and number was not responding

Only know that the call came from Newtown Victoria

Scammer

Scamming Indians selling

Caller: Unknown

They ring, wait for you to answer and hang up.

India call

Scam Caller

Caller: scammers

This company has a range of numbers they call from. They ring every day to be told where to go and im not interested in buying your online drugs. I believe it is canadian pharmacy. If you call them back you cant get through.

I called back this missed number out of curiosity and because they rang for ages, but the call instantly disconnected.

Typical spam call. Put the number in your phone book under Spam, set it to silent ring tone and no vibrate. Also block the caller if you can.
You won’t get bothered again.

I called back number (03) 9340 8156 rang once then goes to busy tone.