Papers rustling on message, very odd!

I answered but hung up straight after, similar to a list of other numbers I have

I keep getting phone calls - about 12 today and all come from 0439 687 xxx numbers which means they are calling from different numebrs to avoid phone companies issuing nusiance phone calls.

Not interested. If i dont pick up the first 5 times what makes you think i will pic up for the next 5 calls.

I get the same they go to message bank and say nothing.......good luck trying to sell me something now!!!! some companies have no idea!!

They go to message bank and say nothing.......very annoying wasting my money!!

I could hear paper rustling, but didn't get an answer.