Global System for Mobile communication(GSM)

Table of contents

Preface 2
Acknowledgement 3
Table of contents 4

1.About BSNL 5
2.Introduction: The Evolution of Mobile Telephone Systems 6
3.GSM 9
Network structure 11
Radio interface 12
4. GSM Network 15
The Switching System 17
The Base Station System (BSS) 18
The Operation and Support System 19
Additional Functional Elements 19
5.GSM Network Areas 20
6.GSM Specification 22
7.Subscribers Identity Module 24
8.GSM Subscriber Services 25
9.Supplementary Services 27
Conclusion

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