Session Initiation Protocol (SIP) - Session Initiation Protocol is a signalling protocol used for establishing sessions in an IP network.
http://en.wikipedia.org/wiki/Session_Initiation_Protocol

Home Network

Network Adapter

Network Attached Storage
 – (NAS)

Network-based Video on Demand – (May be known as Network Storage.)

Network Computer – (NC) - (a.k.a. Net PC, Managed PC.)

Network Interface Cards
 - (NIC)

Network Management Software

Network Management System – (NMS) - The combination of equipment, hardware and software used in monitoring, controlling and managing a data communication network.

Network Operator

Network PC - (Network Appliance)

Network Personal Video Recording - (nPVR) - (Maybe known asServer-based Personal Video Recorder) - Headend-driven Video on Demand with Personal Television services. Viewers can fast-forward, pause, rewind, etc.

Network Programmers

Network Service Provider - (NSP)

Network Storage

Network Transport

Networked Entertainment – (May be known as Home Networking {Entertainment}.) – See Home Networking.