AT&T ATM Service works for business applications that require bandwidth at speeds of T1.5 and higher. Because ATM divides data for transport into fixed-length, 53-byte cells, it supports high speed plus low delay. So voice and video can run on the same infrastructure as your data with no loss of quality. Along with lots of bandwidth and service consolidation, here are some of the benefits of AT&T ATM Service:

• Proactive network monitoring, including the Visual Networks ASE (Analysis Service Element), a network monitor device that gives AT&T technicians a view of your network from location to location - and enables notification of equipment problems within 15 minutes
• Flexible speeds, from T1.5 to T45 and OC3 to OC12, even allowing incremental speeds from two to eight T1.5s
• Frame Relay-to-ATM interworking, providing a smooth migration path for your network
• Switched Virtual Circuits (SVCs) that allow you to set up connections anywhere on your network in real time
• Quality of Service Classes (QoS) that allow you to choose from three types depending on your application needs: Constant Bit Rate (CBR), Variable Bit Rate - non-real time (VBR-nrt) and Variable Bit Rate - real-time (VBR-rt). VBR-rt is only available on Lucent switches.
• Industry-leading Service Level Agreements (SLAs) for latency, throughput, availability, time-to-repair and installation date commitments

AT&T ATM SDO provides you the following benefits:

• Robust network solutions for diversity requirements
• Flexibility to select feature options dependent on their specific diversity requirements
• Protection in the event of a failure at an ATM Switch or ATM POP.

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