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1-3
Terms Used in This Guide 1
802.1p
802.1Q
802.1Q defines a layer 2 frame structure that supports VLAN
identification and a QoS mechanism usually referred to as
802.1p, but the content of 802.1p is now incorporated in 802.1D.
ARP Address Resolution Protocol, used to verify that the IP address
provided by the DHCP server is not in use by another IP
Telephone.
CELP Code-excited linear-predictive; voice compression requiring only
16 kbps of bandwidth.
CLAN Control LAN, type of TN799 circuit pack.
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.
IETF Internet Engineering Task Force, the organization that produces
standards for communications on the internet.
LAN Local Area Network.
LDAP Lightweight Directory Access Protocol, an IETF standard for
database organization and query exchange.
MAC Media Access Control, ID of an endpoint.
NAPT Network Address Port Translation.
NAT Network Address Translation.
PSTN Public Switched Telephone Network, the network used for
traditional telephony.
QoS Quality of Service, used to refer to a number of mechanisms
intended to improve audio quality over packet-based networks.
RRQ Read Request packet, a message sent from the 4600 Series IP
Telephone to the TFTP server, requesting to download the
upgrade script and the application file.
RSVP Resource ReSerVation Protocol, used by hosts to request
resource reservations throughout a network.
RTCP RTP Control Protocol, monitors quality of the RTP services and
can provide real-time information to users of an RTP service.
RTP Real-time Transport Protocol, provides end-to-end services for
real-time data (such as voice over IP).
TCP/IP Transmission Control Protocol/Internet Protocol, a network-layer
protocol used on LANs and internets.