Polycom DOC2237A - Manual (Page 18)

Chapter 1 - Before You Begin
1-10
List of Abbreviations
The following is the list of abbreviations used throughout this manual:
Table 1-2: Abbreviations
API Application Programming Interface
CSU Channel Service Unit
DPR Dual Port Ram
ESD Electro-Static Discharge
HDLC High-level Data Link Control
HSD High Speed Data
IP Internet Protocol
ISDN Integrated Services Digital Network
LAN Local Area Network
LED Light Emitting Diode
LSD Low Speed Data
MCU Multipoint Control Unit
MGC Multimedia Gateway Control
MPI Multi Protocol Interface
MUX Multiplexor
PBX Private Branch Exchange
PRI Primary Rate Interface
TCP Transmission Control Protocol
TDM Time Division Multiplexing