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CS-5200/5400 ADMINISTRATOR GUIDE, ISSUE 1.1 – August 2005
Page 10 CAUTION without Triangle
OSA Operator System Access
OSI Open Systems Interconnect
P2P Peer to Peer
PC Personal Computer
PCM Pulse Code Modulation
PDA Personal Digital Assistant
PDF Portable Document Format
PEC Processor Expansion Card
PPP Point-to-Point Protocol
PRI Primary Rate Interface
PSTN Public Switched Telephone Network
QoS Quality of Service
REN Ringer Equivalence Number
RFI Radio Frequency Interference
RJ Registered Jack
RMS Root Mean Square
RTCP Real-time Transport Control Protocol
RTP Real-time Transport Protocol
SSH Secure SHell
SIP Session Initiation Protocol
SLA Single-Line Adapter
SMDR Station Message Detail Recording
TCP Transmission Control Protocol
TDM Time Division Multiplex
TFTP Trivial File Transfer Protocol
UCD Uniform Call Distribution
UDP User Datagram Protocol
UK United Kingdom
US United States of America
USB Universal Serial Bus
VAD Voice Activity Detection
VoIP Voice over Internet Protocol
VPU Voice Processing Unit
WAN Wide Area Network
Table 1. Abbreviations and Acronyms (Continued)
ABBREVIA-
TION
SPELLED-OUT MEANING