Abbreviations
S
SCC
Single Carrier Cabinet
SMDR
Station Message Detail Recording
SPE
Switch Processor Element
SPID
Service Profile Identifier
SWG
Standard Wire Gauge (United Kingdom)
T
TDM
Time Division Multiplexer
TM
Test Mode
TX
Terminal transmit
U
UCD
Uniform Call Distribution
UPS
Uninterruptible Power Supply
W
WATS
Wide Area Telecommunications System (U.S.A.)
