This research service covers the North American market for Wholesale Synchronous Optical Network (SONET) services through the period from 2004 to 2010. The North American telecommunications market is experiencing rapid growth in voice and data traffic. Wireless carriers are experiencing exponential growth with voice and data, requiring significantly higher backhaul requirements than ever before. These trends bode well for the wholesale SONET market, driving demand for these services. SONET will remain the preferred private line technology for some time, while it will feel competitive pressure from competing services such as Ethernet and wavelength services.