Optus Update 4
Mobiles are still on again / off again, mine has fallen off the grid again after I successfully made a few calls only 20 minutes ago.
I’ve also gotten word that (among others) Suncorp uses Optus for its EFTPOS network, so there are lots of businesses and ATM’s that are not working because of the outage.
There are also reports of at least one Hospital having no communications, which is a bit of a worry!