Avaya 16-601443 사용자 설명서

Encryption 

Encryption of the audio information exchanged between the IP telephone and the call 

server or far end telephone.

NAPT 

Network Address Port Translation.

NAT 

Network Address Translation.

OPS Off-PBX 

Station.

PHP 

Hypertext Preprocessor, software used to assist in the format and display of Web 

pages.

PSTN 

Public Switched Telephone Network, the network used for traditional telephony.

Quality of Service, used to refer to several mechanisms intended to improve audio 

quality over packet-based networks.

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.

SDP 

Session Description Protocol. A well-defined format for conveying sufficient 

information to discover and participate in a multimedia session. 

Encryption 

Encryption of the signaling protocol exchanged between the IP telephone and the call 

server. Signaling channel encryption provides additional security to the security 

provided by media channel encryption.

SIP 

Session Initiation Protocol. An alternative to H.323 for VoIP signaling. This protocol is 

not applicable to 1600 Series IP Telephones.

SNTP 

Simple Network Time Protocol. An adaptation of the Network Time Protocol used to 

synchronize computer clocks in the internet.

TCP/IP 

Transmission Control Protocol/Internet Protocol, a network-layer protocol used on 

LANs and internets.

TFTP 

Trivial File Transfer Protocol, used to provide downloading of upgrade scripts and 

application files to certain IP telephones.

TLS 

Transport Layer Security, an enhancement of Secure Sockets Layer (SSL). TLS is 

compatible with SSL 3.0 and allows for privacy and data integrity between two 

communicating applications.

UDP 

User Datagram Protocol, a connectionless transport-layer protocol.

Registration 

Registration with Avaya Aura Communication Manager by an IP telephone with no 

extension. Allows limited outgoing calling.

VLAN Virtual 

LAN.

VoIP 

Voice over IP, a class of technology for sending audio data and signaling over LANs.