In a message of 26 Dec 95 Paul Edwards wrote to Ian Gardener:

 IG>> That will be extremely difficult since Telstra is the only carrier for 
 IG>> local calls at this time.

 PE> In Sydney, you can go "1-456-02-xxxyyyy" to dial another
Sydney number.
 PE> Ditto for Melbourne, with an 03 instead.  Nice secret, eh?  I started
 PE> doing that about a week ago.  You may need to have already selected
 PE> Optus as your carrier, I don't know.  BFN.  Paul.

Yeah, but then the calls are timed, or so I am lead to believe.

Catchya

... κκκκκκκκκκκ ®ΔΔΔΔΔ A condom chorus line"
--- Spot 1.3a #753