the Long and short of it:
Communication Server 2000-Compact
Formerly known as: Succession Communication Server 2000
Overview
The Communication Server 2000-Compact is a scalable, reduced-footprint, superclass softswitch built on the commercially-available Compact PCI platform. Delivering a comprehensive set of Class 4 and 5 features, this carrier-grade softswitch is applicable for new network builds and packet evolution. Based on open hardware and software and supporting industry-standard protocols, the Communication Server 2000-Compact is ideal for Service Providers and Cable Multiple Systems Operators.
http://products.nortel.com/go/produc...7&locale=en-US