NS/EP:

• assignment
• communications survivability
• interoperability
• National Communications System (NCS)
• National Coordinating Center (NCC) for Telecommunications
• NS/EP telecommunications
• priority level
• priority level assignment
• private NS/EP telecommunications services
• provisioning
• public switched NS/EP telecommunications services
• service identification
• Telecommunications Service Priority (TSP) service
• Telecommunications Service Priority (TSP) system