A waterproof what? Coat? Condom? Lunch bag?
This. It can be horribly deceiving, and lead you to go through money much faster than anticipated. It was worse, though, when I was there: the price numbers were the same in Canadian dollars as UK pounds, and the pound was worth $2.50 Canadian!
IIRC, you can disable voicemail such that it never tries to find your phone, saving the double charge for attempting to find your phone and then sending the message back to the voicemail server.
Note that if you have an iPhone and Visual Voicemail, those Visual Voicemail messages are downloaded to your phone. Data charges! (This seems to imply that if you have data roaming turned off and aren’t on WiFi, Visual Voicemail won’t work. So be sure you know how to get to your voicemail the old-fashioned way, by hitting 1 on the speed dial or dialling the number, and then entering your password…
:: nods ::
Texts are still the best way to go, even at those prices. You can get add-ons to your plan that supply quantities of data, text messages, or talk time at lower rates. In the iPhone, there’s a notice right next to the switch that turns on data roaming. The notice basically says, “IF YOU TURN THIS ON, YOU WILL PAY A LOT OF MONEY”. It has to be pretty bad for the OS maker to embed the warning right in their firmware…
Speaking of phone numbers, store all your phone numbers in your directory in the international format: plus sign, country code, area code, local number. A US number would be stored as +1 xxx xxx xxxx. A UK number would be +44 xxx xxx xxxx (varying length of area code and local number, still totalling 10 digits though).
This enables you to hit speed dial wherever you are, and the GSM system automatically figures out how to dial it. You don’t have to figure out, “do I dial 011 or 00 before the number”, “do I have to put in the area code”, and all that stuff.
Note that UK people always put the trunk dialling digit 0 before their area codes, but if you’re writing the number in international format, you leave the 0 off!