ADSL Asymmetric DSL
CESoP Circuit Emulation Services
over Packet
CPE Customer Premises Equip- ment
DSL Digital Subscriber Line
DSLAM DSL Access Multiplexer
GSM Global System for Mobile
Communications
ISDN Integrated Services Digital Network
MSAN Multi-Service Access Node
NGN Next Generation Network
OAM Operations, Administration
and Maintenance
PBX Private Branch Exchange
POTS Plain Old Telephone Service
PRA Primary Rate Access
RTP Real-Time Transport Protocol
SDH Synchronous Digital Hierarchy
SHDSL Single-Pair High-Speed DSL
SIP Session Initiation Protocol
TDM Time Division Multiplexing
VDSL Very High-Speed DSL
VoDSL Voice over DSL
VoIP Voice over IP