Hatteras Networks announced today that MTS Allstream has expanded their use of Hatteras Networks' award-winning HN4000 Ethernet switching platforms to provide high-bandwidth Ethernet back-haul transport from wireless cell tower sites for 1xEV-DO. The increased data service demands for mobile wireless traffic required MTS Allstream to pursue a solution that provides greater bandwidth than can be achieved with a traditional T1-based infrastructure. Hatteras Networks' HN4000 Ethernet solution provided the bandwidth and reliability required for MTS Allstream's cell tower back-haul evolution