AT&T DEFINITY 2500 series Network Manual page 311

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SDN
SMT
SNA
SO
SW56
SW64
TEHO
TSI
TTT
UDP
UNMA
VMAAP
WAN
WATS
ZCS
Software-Defined Network
system management terminal
Systems Network Architecture
serving office (for SDN)
Switched 56 Service
ACCUNET
Switched 64 Service
ACCUNET
tail end hop off
time slot interchange unit
tandem tie trunk (network)
Uniform Dial Plan (package)
Unified Network Management Architecture
Visual Maintenance and Administration Panel
wide area network
Wide Area Telecommunications Service
zero code suppression (line coding)
AB-5
ABBREVIATIONS