Mohammed Khalid Hassan Mohammed graduated with a BSc (Honors) degree in Information Technology (Firstclass) from the Faculty of Mathematical Sciences, University of Khartoum (Sudan). His Project included Development of IP Multimedia Subsystem (IMS) Services for Mobile Operators. He is currently teaching and Research Assistant in the Department of Computer Science, Faculty of Mathematical Sciences, University of Khartoum, and Customer Service Engineer, International Turnkey Systems (ITS).