User`s manual

Version 5.4 567 May 2008
SIP User's Manual 17. Glossary
Term Meaning
PVID Port VLAN ID (VLAN ID assignment to Ethernet packet by switch)
QoS Quality of Service
RFC Request for Comment issued by IETF
RTCP Real-Time Transport (RTP) Control Protocol
RTP Real-Time Transport Protocol
SA Security Associations (contains encryption keys and profile used by IPSec to
encrypt the IP stream)
SAS Stand Alone Survivability Feature
SDP Session Description Protocol
SIP Session Initiation Protocol
SMDI Simplified Message Desk Interface
SME Small and Medium-sized Enterprise
SNMP Simple Network Management Protocol
SRTP Secure Real-Time Transport Protocol
SRV Service Record
SSH Secure Shell
SSL Secure Socket Layer (also known as Transport Layer Security (TLS))
STUN Simple Traversal of UDP through NATs
T1 1.544 Mbps USA Digital Transmission System (see E1 and DS1)
TCP Transmission Control Protocol
TCP/IP Transmission Control Protocol / Internet Protocol
TE Terminal Equipment (ISDN)
TDM Time-Division Multiplexing
TFTP Trivial File Transfer Protocol
TLS Transport Layer Security
TON Type of Numbering
UA SIP User Agent
UDP User Datagram Protocol
URI (SIP URIs) SIP Uniform Resource Indicators
VBD Voice-band data
VLAN Virtual Local Area Network
VoIP Voice over Internet Protocol
VoP Voice over Packet(s)
VP Voice Prompts (File)
VPN Virtual Private Network
µ-Law A companding algorithm, used in the digital telecommunication systems