GET OFF TELSTRA NOW!
We got really "F'd in the A" as they have a clause wherein you have a certain amout of hours a month (although its supposed to be unlimited) and one you go over that its something like 15c a minute, which is $175 a day, and we were leaving it on 24/7 thinking it was "unlimited" like they claim and then we got stung with a phone bill for $7000
(not typo)
Spoke to an Ombudsman who convinced them to make it $1000 which is still a shitload but sooooo much better than 7k, lesson learnt
Anyone out there on telstra, get off it now!