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Appendix

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Appendix

Appendix A: Glossary

802.1x--an IEEE Standard for port-based Network Access Control (PNAC). It is part of the

IEEE 802.1 group of networking protocols. It provides an authentication mechanism to

devices wishing to attach to a LAN or WLAN.

ACD (Automatic Call Distribution)--used to distribute calls from large volumes of

incoming calls to the registered IP phone users.

ACS (Auto Configuration server)--responsible for auto-configuration of the Central

Processing Element (CPE).

Cryptographic Key--a piece of variable data that is fed as input into a cryptographic

algorithm to perform operations such as encryption and decryption, or signing and

verification.

DHCP (Dynamic Host Configuration Protocol)--built on a client-server model, where

designated DHCP server hosts allocate network addresses and deliver configuration

parameters to dynamically configured hosts.

DHCP Option--can be configured for specific values and enabled for assignment and

distribution to DHCP clients based on server, scope, class or client-specific levels.

DNS (Domain Name System)--a hierarchical distributed naming system for computers,

services, or any resource connected to the Internet or a private network.

EAP-MD5 (Extensible Authentication Protocol-Message Digest Algorithm 5)--only

provides authentication of the EAP peer to the EAP server but not mutual

authentication.

EAP-TLS (Extensible Authentication Protocol-Transport Layer Security) –Provides for

mutual authentication, integrity-protected cipher suite negotiation between two

endpoints.

PEAP-MSCHAPv2 (Protected Extensible Authentication Protocol-Microsoft Challenge

Handshake Authentication Protocol version 2) –Provides for mutual authentication, but

does not require a client certificate on the IP phone.

FAC (Feature Access Code)--special patterns of characters that are dialed from a

phone keypad to invoke particular features.

HTTP (Hypertext Transfer Protocol)--used to request and transmit data on the World

Wide Web.

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Yealink SIP-T3 Specifications Page 261