they called a number of times and missed call then call today and and said something along the lines of "Baba" then hang up I attempted to call back number of times it would go to message bank or they would decline call.....I have since blocked the number

Received a miss call from this today (I've also been receiving calls from other 0424 prefix, the others have been 0424 741 though) and left a voicemail. Each time I've received these calls the voicemail (if one is left) starts with a skype noise and then usually someone saying hello.
Tried to call back today with number hidden and on mute but call was ended after about 3 rings.

Had a missed call, unable to call back, drops out after one ring

rings but no answ. call back disconnects call.