The Cisco 2-Port Clear Channel T3/E3 Shared Port Adapter combines shared port adapters (SPAs) and SPA interface processors (SIPs), leveraging an extensible design that enables service prioritization for voice, video and data services. Enterprise and service provider customers can take advantage of improved slot economics resulting from modular port adapters that are interchangeable across Cisco routing platforms. The 2-Port Clear Channel T3/E3 Shared Port Adapter design maximizes connectivity options and offers superior service intelligence through programmable interface processors that deliver line-rate performance. 2-Port Clear Channel T3/E3 Shared Port Adapter enhances speed-to-service revenue and provides a rich set of QoS features for premium service delivery while effectively reducing the overall cost of ownership.