This is the GSM course , This course talks about the basics of telecommunication networks and its standards followed by clear explanation for GSM Network including its architecture, access techniques & the connection methods used. After that we will talk about cellular concept used, air interface channels and its transmission problems and mapping them into time slots. Then different traffic cases such as call scenarios, location update & handover types and finally the practical part for optimizing the Network & the tools used in any telecom company.