It is dependant upon the circumstances.
If you received an unsolicited telephone call than you are liberty to swear so long as it is not of a broader vilification.
If you have made a telephone call then you are not allowed to swear as it could be construed as 'verbal assault'.
No, but swearing all the time isn't a good way to live.
The first telephone in Australia was installed in Melbourne in 1879.
In Australia at least, threats of violence on the telephone are illegal, and repeated threats come under anti -stalking laws.
No, it is not illegal to change a lightbulb in Australia.
Because...IT IS VERY RUDE!!
No, but you can get expelled from your school for doing so.
I wouldn't try this is very illegal i swear to you if you try it you could get find and reported
No
No. Valium is not illegal in Australia. It may be purchased only with a prescription, however.
Yes. Red telephone boxes were very common in Australia during the twentieth century.
No. gay sex is not illegal in any state in Australia.
Yes, just like it is in any other country.