EXM External music on hold
EXTEB Extension Board
FMC Flash Memory Card
FPN Fixed Part Number (CMI)
FPS Fixed Part Subnumber (CMI)
GCM Call Charge Computer/Manager (CCM)
GEE Call metering receiving equipment
HA Handset
IMOD Integrated Modem Card
ISDN Integrated Services Digital Network
IVR Interactive Voice Response
LAN Bridge Local Area Network connection
LED Light Emitting Diode
LM Feature
LOS Line Of Sight
LS Loop start method
MDFU Main Distribution Frame Universal
MDFU-E Main Distribution Frame Universal, Enhanced
MOH Music on Hold
MPPI Stored music on hold
MSN Multiple Subscriber Number
NT Network Termination
OPA Option Adapter
PA Phone Adapter
PCM Pulse Code Modulation
PFI Power Failure Signal
PFT Power Failure Transfer
POT Plain Old Telephone
PSE Radio paging equipment
PSUC Power Supply Unit Com
PSUF Power Supply Unit Point
PSUI Power Supply Unit Individual
REAL Relay and power failure transfer
SAG Surge protector
SBS Single Board System
SLA Subscriber Line Analog
SLA Subscriber Line Module Analog
SLMC Subscriber Line Module Cordless
SLMO Subscriber Line Module Cost Optimized UP0/E
SLU Subscriber Line UP0/E
SNG Plug-type AC adapter
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