06-10-2010, 02:29 PM
RK-3 GSM Network.ppt (Size: 299 KB / Downloads: 342)
GSM, systems for mobile communication
introduction
With GSM, systems for mobile communication reached a global scale. In the western world, it seems everyone has their own mobile phone, and GSM has taken more and more of the market.
GSM allows users to roam seamlessly between networks, and separate the user identity from the phone equipment. In addition the GSM system provides the functional basis for the 3rd generation mobile system, UMTS.
Some GSM Facts
Nearly 1 billion subscribers worldwide
Estimated that worldwide mobile phone fraud will reach $40 billion dollars
US Law enforcement agents have found that 80% of drug dealers arrested in US using cloned mobile phones.
Ironically, Pablo Escobar the top Columbian drug dealer was tracked down by monitoring his mobile phone activity.
Two aspects relevant to a Forensic Analyst
Has the phone been used for a criminal act
Can the phone be used to secure a conviction
Some GSM Facts
The European Telecommunication Standards Institute (ETSI) regulates the GSM standard (all 4000 pages of it!).
Any equipment used on a GSM network has to have approval by the ETSI.
All MSâ„¢s are independent from any network.
Reference: https://seminarproject.net/Thread-gsm-mo...z11ZDr8zY0