Tuesday, June 13, 2006

What is GSM technology for mobile phones?

GSM stands for Global System for Mobile Communications. It was a digital standard first offered commercially in 1991. It is used to send and receive phone calls and is currently the most popular mobile phone transmission technology globally.

The GSM standard uses TDMA digital technology, which allows for three different voice calls to be placed in the same time slot, rather than one call using the old analog "cell" phones. This is possible through digital compression that GSM then builds upon with the addition of encryption. A GSM phone takes up the same amount of transmission space as the old technology, but has the additional benefit of added security.

GSM phones work with SIM cards or ‘Subscriber Identification Module’. This is a small card with a built-in chip which is fitted in the back of the phone. The SIM card is the heart of the GSM phone, since it enables the phone to communicate with the service provider. SIM cards are provided by the service providers and can also store contact information and SMS messages. SIM cards provides the additional benefit of changing handsets without changing the phone number or losing out on SMS and contacts.

GSM technology is also responsible for the popularity of SMS messages in Asia and Europe.

GSM got a boost in the US due to Cingular Wireless becoming America’s largest mobile provider, choosing to adopt GSM technology.

Using a GSM phone is highly recommended for someone traveling abroad, since it is a widely used technology and it is very easy to get a local SIM card of the visiting country and ‘Go Mobile’.

2 Comments:

Anonymous Anonymous said...

Can this technology mobile phones will function at USA

5:22 PM  
Blogger GB Technologies said...

To Anonymous:

Yes, GSM works in the US with Cingular.

10:12 PM  

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