Avaya 16CC Betriebsanweisung Seite 95

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Issue 1 January 2008 95
Appendix A: Glossary of Terms
802.1D
802.1Q
802.1Q defines a layer 2 frame structure that supports VLAN identification and a QoS
mechanism usually referred to as 802.1D.
802.1X Authentication method for a protocol requiring a network device to authenticate with a
back-end Authentication Server before gaining network access. Applicable Avaya
Agent Deskphone 16CC telephones support IEEE 802.1X for pass-through and for
Supplicant operation with the EAP-MD5 authentication method. Not currently
applicable to 9600 Series SIP IP Telephones running SIP R1.0 software or Avaya
Agent Deskphone 16CC telephones.
ARP Address Resolution Protocol, used, for example, to verify that the IP Address provided
by the DHCP server is not in use by another IP telephone.
Call Server In an Avaya SIP environment, the “call server is the combination of SIP Enablement
Services (SES) and Avaya Communication Manager.
CELP Code-excited linear-predictive. Voice compression requiring only 16 kbps of
bandwidth.
CLAN Control LAN, a type of circuit pack.
CNA Converged Network Analyzer, an Avaya product to test and analyze network
performance.
DHCP Dynamic Host Configuration Protocol, an IETF protocol used to automate IP Address
allocation and management.
DiffServ Differentiated Services, an IP-based QoS mechanism.
DNS
Domain Name System, an IETF standard for ASCII strings to represent IP
Addresses. The Domain Name System (DNS) is a distributed Internet directory
service. DNS is used mostly to translate between domain names and IP Addresses.
Avaya Agent Deskphone 16CC telephones can use DNS to resolve names into IP
Addresses. In DHCP, TFTP, and HTTP files, DNS names can be used wherever IP
Addresses were available as long as a valid DNS server is identified first.
H.323 A TCP/IP-based protocol for VoIP signaling. An alternative to SIP for VoIP signaling.
Avaya Agent Deskphone 16CC telephones do not support this protocol.
HTTP Hypertext Transfer Protocol, used to request and transmit pages on the World Wide
Web.
HTTPS A secure version of HTTP.
IETF Internet Engineering Task Force, the organization that produces standards for
communications on the internet.
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