Ok, I have an unlocked triband Motorola T66 cell phone. What International SIM card would you recommend?

We'll be traveling through UK, France, Germany, Austria, and Italy this summer - and it would be nice if it worked in Mexico, too.

We'll mostly use the phone to just check on reservations and travel arrangements, but I'm sure we will want to call family back in the States a bit, too

I was under the impression that SIM cards are country specific. Am I mistaken?

It took quite some time to find the answer to this question, but I believe the best alternatives are.
(Im always looking for better alternatives, so please post!)

- riiing or ecoworldcom by united mobile
- Tango Luxemburg

- Riiing is avalable either on ebay, or www.riiing.de or www.ecoworldcom.de.

Ebay would be the easiest way to purchease the card. Price is around 25 Euros.

Incoming calls in most of Europe are free. (including all the countries you mentioned) You get a Liechtenstein phone number which is hard to reach from Germany but no problem from the US and the rest of Europe. (You can reach a Liechenstein mobile number from 15ct US/min (www.callbackworld.com)

Outgoing calls are 39 Eurocent plus 25ct "flagfall" per connection.
Reload via credit card over the internet.
Calls from Mexico are 1.39 Euro/min

- Tango Luxemburg
Best for travelling to the US (GSM) a litte more expensive than riing if used in Europe. Can only be bought in Luxemburg, but card and reload coupons are available from certain companies over the internet. Recharge from you credit card. Simply send a SMS message containing the amount and your password. You have to register you credit card with them first.

Incoming calls aren t free, but:
0,35 Euro/min during european peak hours and 0,23 Euro/min off peak.

Can be used in Europe, the US and Canada at the same rate. Mexico is more expensive. Outging calls are more expensive too, but not much.

www.tango.lu

Please post better alternatives!
Im travelling a lot. www.Oskar.cz might be an alternative too, but hard to get the sim card.

thanks
logos999

Thank you, logos.

Yes, thank you, logos. I'll look into those options.

I m using Tango in Canada and the US, never had a problem there, and riiing in Europe. In Germany Im using a German card (eplus). I dont want my german business contacts and friends to dial a foreign number. They might not know how to do so ;-) and Deutsche Telekom doesnt connect to many Liechtenstein mobiles. I believe its completely illegal what they are doing and they want to protect their big profits! Ask your german friends to dial around if you want to be reached from Germany (via a US 1-800 number) and everything is working fine. I never ever had a problem with riiing outside of Germany.

Dialling from you mobile from Germany is no problem at all with riiing, even If you use T-Mobile Germany as your roaming provider!

Topping - in case anyone has alternatives to offer logos999.