Sumit Kasera Sumit Kasera is Senior Technical Leader at Flextronics Software Systems (formerly Hughes Software Systems), India. He has a B. Tech degree in Computer Science and Engineering from IIT, Kharagpur, India and an M.S degree in Software Systems from Brla Institute of Technology and Science, Pilani, India. His current area of interest is software development for GSM, GPRS and EDGE access network. Sumit is also experienced in software development for networking protocols like ATM, TCP/IP and 3G UMTS. He has been has an active participant in various technical forums like ITU-T, ATM Forum and 3GPP where he has presented papers and conducted seminars; and also participated in the review of 3GPP specifications.. Sumit is the author of two books —ATM Networks: Concepts and Protocols and 3G Networks: Architecture, Protocols and Procedures. Read More Read Less