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GSM stands for Global process for mobile communications. It is of the most popular standards of cellular communications, the other being CDMA. The GSM standard was established in 1982 in Europe. Its purpose was to generate a mobile standard across Europe for mobile communications in the 900 MHz band.

GSM is the most popular standard for mobile phones in the world.GSM phones use encrypted know-how that allows secure voice and information transfer in the coursework of calls. GSM know-how makes use of an algorithm to be definite the authenticity of the caller and the integrity of the channel, even when you are roaming in a foreign country. The most fascinating, and potentially contentious area of wireless security is that concerning wireless LANs or Wi-Fi networks, these are quick becoming the connection method of choice. Wireless signals do not recognize corporate or geographical boundaries and are only limited by the propagation configuration of the network.

GSM is a worldwide mobile phone frequency employed by the large majority of the major networks. GSM was designed with a moderate level of security. The system was designed to authenticate the subscriber using shared-secret cryptography. Communications between the subscriber and the base station can be encrypted. The development of UMTS (Universal Mobile Telecommunications System) introduces an optional USIM (Universal Subscriber Identity Module-the 3G equivalent of the GSM SIM), that makes use of an extended authentication key to give better security, as well as mutually authenticating the network and the user - whereas GSM only authenticated the user to the network.

 Advantages of GSM :-

• The GSM Monitoring technique thus developed can be configured in any LAN surroundings to provide a near-exact physical location of the target and to form a Central Monitoring Station.
• The technique Auto detects, decodes and records phone conversations, network information in to the digital media (magnetic / optical) present in the technique.
• The technique provides Interception and Monitoring of Short Message Service (SMS) traffic.

The technique of GSM Monitoring is intended for search, interception and registration of cellular signals on standards GSM-900/1800 in stationary or in mobile variant.

GSM is an open standard which is currently developed by the 3rd Generation Partnership Project (3GPP).The advantage for network operators has been the ability to deploy equipment from different vendors because the open standard allows simple inter-operability. Read more about GSM Intercept/Interception/Monitoring you can visit our website http://www.comstrac.com/