I called back number 0434 394 679 rang 3 times then goes to busy tone.

Phone alerted me it was a telemarketer so didn't answer

Several missed calls from this unknown number. When I finally answered the phone, it was just a complete silence. I think it was a scam, as recently I received this kind of calls almost everyday.

phone does not ring when you call back

called back the number twice and not even a tone

same here - seriously not funny

Female with information about a government incentive scheme

spam!!

absolutely dodgy trying to scam information
hang up immediately