If you do any international travel for your business .... reliable communication is often crucial to a successful business trip. The prefered method of staying in touch is usually a cell phone .... meaning you'll need a SIM card for each location you travel too.
Or maybe not ....
OneSIMcard is a prepaid international SIM card that allows you to take your GSM mobile phone overseas, without incurring high roaming charges from your current wireless service provider.
It is VERY SIMPLE - all you need to do is replace your phone's existing SIM card with international SIM card when you travel. Save up to 85% compared with your regular mobile phone service and even receive calls for FREE in more than 54 countries. OneSimCard international mobile service works in over 150 countries.
If you are using a T-Mobile or AT&T cell phone, chances are that your handset is equipped with a SIM card. A SIM card is a small smart chip that acts as an identification card for your GSM handset.
Your SIM card is smart because it can store phone numbers and even text messages. All SIM cards have unique serial numbers that contain your account information for your wireless service provider. You can take the SIM card out of your GSM phone, and insert it into any other compatible GSM phone, and bingo - your number along with your subscriber information will register with your wireless service provider.
You may already own an original or aftermarket cell phone that you purchased while traveling overseas. If your phone is tri-band or quad-band, it is capable of international mobile roaming. All you need is prepaid GSM service and you're good to go to any of the 150 countries they cover.
To find out more about easy this can be for you go to:
International Cell Phone