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The Global System for Mobile Communications (GSM) is a wireless network system that is widely used in Europe, Asia, and Australia. GSM is used at three different frequencies: GSM900 and GSM1800 are used in Europe, Asia, and Australia, while GSM1900 is deployed in North America and other parts of the world. What is HLR The Home Location Register (HLR) is a database for permanent storage of subscriber data and service profiles.
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Monday, September 24, 2007
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