Thursday, February 18, 2010

How GSM technology works

Cell phones have become a real craze in the world today. There are millions of people using cell phones around the globe and the numbers just keep on increasing. Cellular phones are amazing devices and its fans just cannot live without it! Well, you cannot blame them because they really are fascinating gadgets. With a cell phone, you can talk to anyone on the planet from just about anywhere! These days, cellular phones provide an incredible array of functions and new ones are being added at an incredible speed.

But have you ever wondered how a Gsm cellular phone works? What makes it different from a regular phone? What does the term GSM mean? We will discuss the GSM technology behind cell phones so that you can see how remarkable they really are. If you are thinking about buying a Gsm cell phone, then you should definitely learn about how your own splendid device works!

The most important thing to know about the Global System for Mobile communications (GSM) is that it is an international standard. If you travel in Europe and many other parts of the world, GSM is the only type of cellular service available. Originally, the acronym GSM stood for Groupe Spécial Mobile, a group formed by the Conference of European Posts and Telegraphs (CEPT) in 1982 to research the merits of a European standard for mobile telecommunications. Commercial use of the GSM system did not actually start until 1991. Instead of using analog service, GSM was developed as a digital system using TDMA technology.

TDMA is the access method used by GSM, as well as the Electronics Industry Alliance and the Telecommunications Industry Association for Interim Standard 54 (IS-54) and Interim Standard 136 (IS-136). GSM implements TDMA in a somewhat different and incompatible way from IS-136. Think of GSM and IS-136 as two different operating systems that work on the same processor, like Windows and Linux both working on an Intel Pentium III. GSM systems provide a number of useful features:

Use encryption to make phone calls more secure
Data networking
Short Message Service (SMS) for text messages and paging
Call forwarding
Caller ID
Call waiting
Multi-party conferencing

GSM operates in the 900 MHz band (890 MHz - 960 MHz) in Europe and Asia and in the 1900 MHz (sometimes referred to as 1.9 GHz) band in the United States. It is used in digital cellular and PCS based systems. GSM is also the basis for Integrated Digital Enhanced Network (iDEN), a popular system introduced by Motorola and used by Nextel.

GSM is now the largest mobile communication technology worldwide. All manufacturers of mobile phones develop their products based on GSM and all mobile companies provide their subscribers GSM networks. GSM technology has taken over mobile communication technologies and grown over to 214 countries around the globe. We are proud of this amazing technology and believe that GSM will remain the only mobile communication network technology to be adopted by each and every country in the world!

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