Lucent Technologies 5ESS - Page 537

DF2
Data Fanout 2
DIFFSERV
Differentiated Service
DNS
Domain Name Server
DNUS
Digital Network Unit - SONET
DPM
Digital Performance Monitoring
DRM
Distinctive Remote Module
DS-0/1
Digital Signal-Level 0 (64 kb/s)/DS-1 Digital Signal-Level 1 (1.544 Mb/s)
DSCP
Differentiated Services Code Point
DSP
Digital Signal Processor
DTMF
Dual Tone Multifrequency
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EEC
Echo Cancellation (or canceller)
ECN
Explicit Congestion Notification
EMS
Element Management System
EO
End Office
EXM
Exit Message
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235-200-118
Issue 3.02B, March 2007
Lucent Technologies
GLOSSARY
GL-3