The DMS-250 is a high-capacity long-distance tandem switching system for interexchange carriers of all sizes. Through the advanced SuperNode processing architecture, state-of-the-art hardware, optimized system software, and maximum processing capacity, the DMS-250 provides high-speed message handling capacity to meet the most demanding voice and data communications needs of today's long distance users.

• Increased revenue with the delivery of powerful long-distance services
• Reduced training and maintenance costs and the need for spare equipment by using common, modular software and hardware technology
• Advanced OAM&&P capabilities allow rapid introduction of new services
• Evolutionary path to Nortel's Carrier Voice over IP