N
- NAT (Network Address Translation)
- NAT Traversal
- Near End Crosstalk (NEXT)
- Network Address
- Network Bandwidth
- Network Congestion
- Network Element
- Network Gateway
- Network Interface
- Network Interface Card (NIC)
- Network Latency
- Network Load Balancer
- Network Loop
- Network Management System (NMS)
- Network Mapping
- Network Monitoring
- Network Operations Center (NOC)
- Network Optimization
- Network Planning
- Network Protocol
- Network Redundancy
- Network Scanner
- Network Security
- Network Service Provider (NSP)
- Network Time Protocol (NTP)
- Network Topology
- Next Generation Network (NGN)
- Node
- Non-Blocking Switch
- Non-Disclosure Agreement (NDA)
- Non-Geographic Number
- Nuisance Call
- Number Portability
- Number Translation Service (NTS)
- Numbering Plan
