Installation guide
AP-IP120 IP Phone Installation Guide Version 1.0
AddPac Technology Proprietary & Documentation
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VoIP
VoIP (Voice delivered using the Internet Protocol) is a term used in IP
telephony for a set of facilities for managing the delivery of voice information
using the Internet Protocol (IP). In general, this means sending voice
information in digital form in discrete packets rather than in the traditional
circuit-committed protocols of the public switched telephone network (PSTN).
A major advantage of VoIP and Internet telephony is that it avoids the tolls
charged by ordinary telephone service.
VPN
Virtual Private Network, VPN allows IP traffic to travel securely over a public
TCP/IP network by encrypting all traffic from one network to another. A VPN
uses "tunneling" to encrypt all information at the IP level.
WAN
A network that covers a large geographical area. Typical WAN technologies
include point-to-point, X.25 and frame relay. Compare with: LAN, MAN.