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Phone Adapter with 2 Ports for Voice-over-IP
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Appendix C: Glossary
Server - Any computer whose function in a network is to provide user access to files, printing, communications, and other
services.
SMTP (Simple Mail Transfer Protocol) - The standard e-mail protocol on the Internet.
SNMP (Simple Network Management Protocol) - A widely used network monitoring and control protocol.
Software - Instructions for the computer. A series of instructions that performs a particular task is called a “program”.
SOHO (Small Office/Home Office) - Market segment of professionals who work at home or in small offices.
Static IP Address - A fixed address assigned to a computer or device that is connected to a network.
Static Routing - Forwarding data in a network via a fixed path.
STUN (Simple Traversal of UDP through NATs) - A protocol that enables specialized applications, such as Internet phone calls,
video, and audio, to travel between your local network and the Internet. STUN is a specific type of NAT traversal.
Subnet Mask - An address code that determines the size of the network.
Switch - 1. A data switch that connects computing devices to host computers, allowing a large number of devices to share a
limited number of ports. 2. A device for making, breaking, or changing the connections in an electrical circuit.
TCP (Transmission Control Protocol) - A network protocol for transmitting data that requires acknowledgement from the
recipient of data sent.
TCP/IP (Transmission Control Protocol/Internet Protocol) - A set of instructions PCs use to communicate over a network.
Telnet - A user command and TCP/IP protocol used for accessing remote PCs.
TFTP (Trivial File Transfer Protocol) - A version of the TCP/IP FTP protocol that has no directory or password capability.
Throughput - The amount of data moved successfully from one node to another in a given time period.