JustAskGemalto's Blog

T-Mobile Digital Life Tip 1: Digerati Rock!

justaskgemalto — Fri, 07 Aug 2009 00:25:13 +0000

You have to check with your service provider (like AT&T among others) on specifics, but there are a number of general advantages to having a SIM in your cell phone. The SIM gives you global roaming so that you can use your same phone and number when traveling internationally. The SIM is removable so it can help you to switch between devices or to a new phone without losing any of your data, like your phone book, as long as you stay with your current service provider. Its inherent security and brains protect your phone subscription from fraud, and secures your wireless services.

What are the advantages to having a SIM in my cell phone or PDA?

justaskgemalto — Mon, 27 Jul 2009 02:17:11 +0000

I had a error message: “SIM Card Memory Full” What do I do?

justaskgemalto — Mon, 27 Jul 2009 02:15:55 +0000

The SIM has reached its capacity. To fix it, delete unneeded saved text messages and contact entries.

What is a SIM card?

justaskgemalto — Mon, 27 Jul 2009 02:14:42 +0000

A SIM (Subscriber Identification Module) is the smart card that is included in every cell phone of the GSM family of networks. It’s a sophisticated computer chip embedded in a small piece of plastic about the size of a thumbnail and placed behind the battery. The SIM is present in cell phones from companies such as AT&T and T-Mobile in the U.S and many others worldwide. They are also present in smart phones like the BlackBerry and iPhone. Other cell phone providers carry the SIM only for their international roaming phones. The SIM card identifies you to your cell phone carrier (like AT&T for example) so they know your plan and services. The SIM allows you to receive wireless phone service whenever you are within coverage of your cell phone provider’s network. In addition, the SIM is an essential part of the GSM system that enables your phone to work internationally in countries where your cell phone provider allows it. It is used by hundreds of cell phone companies in more than 200 countries around the world The SIM also securely stores the contacts in your phone book and other personal information. Finally, it protects your digital life by preventing anyone from running up your phone bill with fraudulent calls and by securing your calls with encryption so that they cannot be eavesdropped.