Specifications

Reference Guide C-11
ITU
International Telecommunications Union (previously known as CCITT [Consultative
Committee for International Telegraph and Telephone])
ITU-T
International Telecommunications Union, Technical sector
IXC
Interexchange Carrier (also called
IEC
)
LAN
Local Area Network
LANE
LAN Emulation
loopback
Path for returning a signal back to the point of origin for circuit testing
modem
Contraction of the words “modulator” and “demodulator”
MRD
Manual Ringdown
MSP
Maintenance Service Provider
mu-law
T1 companding standard used in the conversion between analog and digital signals in PCM
systems.
Network card
A CPU card, Resource card, or WAN card used in this system.
NMS
Network management system, a computer used to control networks from a single location.