In Reply to: whats the go with mobiles posted by indigrace on Sunday, 4. April 2010 at 19:09 Bali Time:
First make sure you phone is unlocked. Try someone else's Sim card in it if it works it's unlocked if not contact you telecom and ask them for the unlock code.
When you get to Bali you will find many phone kiosks. They will sell you a local Sim and credit. You are now in business.
I like Mentari for price and reliability. Phoning home is ridiculously cheap, maybe Rp.10,000 for 10 minutes approx. Texts are so cheap it's crazy. If you buy a Mentari Sim card you need to dial 0101661 for Aus followed by your area code (drop the 0) and number. For a text you dial +61 plus the mobile number, drop the 0 also. If you choose a different Telec om you will need to ask them for the cheap dialling code as it is different for each company