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42 Preface
P0993298 02
MSC Media services card
NIC Network interface card
OPX Off premises extension
PBX Private branch exchange
PCI Peripheral component interconnect
PEC III Processor expansion card, version III
PRI Primary rate interface
PSTN Public switched telephone network
QoS Quality of service
QSIG Q reference point signalling
RAID Redundant array of inexpensive disks
RAM Random access memory
ROM Read only memory
SAPS Station auxiliary power supply
TAPI Telephony application program interface
TCP/IP Transmission control protocol/internet protocol
UTAM UTAM Inc.
VoI P Voi ce o ve r IP
WAN Wide area network