In Reply to: phone question - what is sim? posted by nycberkeley on Monday, 5. March 2007 at 23:47 Bali Time:
the small network card that goes inside your mobile phone, not a calling card. Aussie phones that are not locked to a particular network will work with a Bali sim card (very cheap call and sms charges), not sure if American phones are compatible, hopefully someone else can answer this for you. The are plenty of Wartels around where you can make fairly cheap phone calls to other countries (not as cheap as a Bali sim though)