In Reply to: SIM cards posted by debPerth on Sunday, 8. March 2009 at 21:53 Bali Time:
As bali4ever says copy all your contacts from your sim card to your phone before you insert your new sim card and select memory in use (phone).
My experience now is that Simpati and Mentari sim cards are now the cheapest for sms and calls to Aus, remember to use the prefix code supplied in starter pack instructions before calling home.