Called this number back. Really loud dial tone which then diverted to softer dial tone and hung up. Blocked!

Called this number back. Really loud dial tone which then diverted to softer dial tone and hung up. Blocked! - Also called from a lan line they answered and when i asked who i was calling they hung !

i called back number (07) 3050 3108 rang 5 times then goes to busy tone.

Spam energy/electricity discount caller (in league with Alinta Energy). Called my number numerous times, did not leave a message. I finally called back out of curiosity and found it was just a spam call. Quite frustrating. I don't know how they obtained my number.