Nortel Multiservice Switch (MSS) portfolio offers unprecedented revenue and profit potential for service providers and reduced networking costs for enterprises through network consolidation. On a single platform, each Multiservice Switch simultaneously supports several networking technologies such as ATM, Frame Relay, IP and voice to generate revenues today with flexible evolution options to emerging technologies.

• Multiservice Switch (MSS) 6400
  Nortel's Multiservice Switch (MSS) 6400 comes in a number of form factors with leading versatility enabling the support for a wide variety of services including; frame relay, IP VPNs, ATM, voice and video.
• Multiservice Switch (MSS) 7400
  The Multiservice Switch 7400 series is used for access adaptation and backbone switching, supporting circuit emulation, IP, ATM and more.
• Multiservice Switch 15000/20000
  The Multiservice Switch 15000 and 20000 are high-capacity, carrier-grade switches that support Layer 2 VPNs, Layer 3 VPNs, circuit emulation, voice and wireless services to meet the performance challenges of voice and data service providers.