This card, which is interchangeable, tells your phone - and the connecting cell phone company - what the phone's number is, and how that cell phone number connects to the world.

As an example, most cell phones bought in the United States have SIM cards which identify the phone as a U.S. phone, and link the phone to a local number in some U.S. city. When the phone is used to make an international call, or call from a location outside of the United States back stateside, the SIM card tells the system how to bill you; either as a local call or a much more expensive international call.

What most people don't know is the SIM card can be easily changed by you, allowing you greater flexibility and huge savings when traveling internationally.

UWTMobile.com now offers Global SIM cards, perfect for world travelers to make calls with discounted rates, receive free call in over 115 countries, and free incoming and SMS text messages everywhere. Never has it been so simple and inexpensive to convert a cell phone from a local-based phone to an international phone with a wide variety of services and benefits.

Users of UWTMobile Global SIM cards often save up to 90% on mobile calls when traveling internationally, all with great customer service and excellent call clarity. Callers are able to make calls for as low as $0.29 per minute while traveling abroad.

In addition to deep savings, UWTMobile Global SIM users also have the option to sign up for the Mobile Miles program at no extra charge and earn miles on mobile calls. With free five MB of data offered for European countries only, travelers can now enjoy data connections from their smartphones and stay connected with friends, family, and business contacts.

UWTMobile is a worldwide provider of Global and USA SIM cards powered by United World Telecom, a leading switch-based telecommunications provider. Established in Florida in 1996, United World Telecom now has thousands of customers in more than 150 countries.

For more information, visit www.uwtmobile.com, or call 888-908-6181 in the United States, or 561-908-6181 internationally.