Hassan Ahmed is CEO and Chairman of Sonus Networks. As chief executive officer and chairman, Dr. Ahmed is responsible for the strategic direction and management of the company. Prior to joining Sonus as president and CEO in 1998, Dr. Ahmed was executive vice president and general manager of Ascend Communications' Core Systems Division, which grew under his direction to a $1 billion business. Before Ascend's acquisition of Cascade Communications, he served as Cascade's chief technology officer. Previously, Dr. Ahmed was president and founder of WaveAccess, a pioneer in high-speed wireless network products. Additionally, he has held the positions of product engineering manager, Analog Devices, and director, VSLI Systems, Motorola Codex. He was also an associate professor at the Graduate School of Management, Boston University. Dr. Ahmed holds a BSEE and MSAE from Carleton University and a Ph.D. in electrical engineering from Stanford University.