GSM cell phones offer elite network coverage to connect people across the world. The great thing about this service is that you are able to use high-speed email, faxing, and other types of data transferring. These types of cell phones have become well known simply on the merit of having what are called "SIM cards" installed. What is a SIM card anyways and why should anyone care if they have a GSM cell phone? Most people feel that having a Subscriber Identification Module (SIM)," also called a "smart card," is advantageous over having a locked cellular phone. For this reason, many people have decided that they would rather have coverage under a network that gives them freedom to unlock their cell phones.

If you do not have a GSM cell phone, then you are definitely missing out on the fact that you can easily insert and remove a SIM card at any time. This means that you could buy 50 different cell phones and choose a different one to use every single day. How would it be possible to have all 50 phones registered? The truth is that you do not need to necessarily have a registered phone; you just need to have a SIM card (which tracks your calling activity by sending wireless signals to the GSM network). All that you would need to do if you wanted to use a new phone is buy a cell phone that supports SIM cards. When you get your new phone, you can remove the SIM from your old phone and put it into your new phone.

A lot of people are not supportive of the concept behind SIM cards and prefer the CDMA cell phone network. Why would anyone not like the feature of using the "subscriber identification module" technology? Most people that dislike the SIM feel that there is a security risk associated with GSM cell phones. They believe that if you lose your cell phone and someone takes your SIM card, you could end up losing a lot of money in cell phone bills. The solution to having your card taken is to get in touch with your provider and have your old SIM cancelled. When your card is cancelled, you simply get a new one and you are back in the network. Most people that use these cards do not think that it is a security threat simply because they can just cancel and get a new one if they encounter problems.

Besides having SIM cards, the GSM phones also are more popular on a global scale than any other service. There are not just millions of people involved with the "Global System for Mobile Communications (GSM)" service, but there is over 1 billion. Their phones operate at a 1900 mega-hertz frequency (MHZ) in North America. The coverage frequency will vary depending on the continent on which you are getting cellular service. Despite privacy concerns, it is known that the GSM company offers some of the best identity-theft and fraud prevention services for cell phone users.

It seems as though GSM cell phones account for over 80% of mobile phone usage in the world. This network continues to grow at a rapid rate due to the high rates of customer satisfaction. The Global System for Mobile Communications network has been known to offer more comprehensive cellular coverage and is ideal for anyone that wants to benefit from having an unlocked cell phone.