AT&T MERLIN LEGEND Release 3.1 Maintenance And Troubleshooting Manual page 406

Glossary
line/trunk
line/trunk jack
line/trunk and
extension module
local host computer
access
local loop
logical ID
loop-start trunk
M
Magic on Hold
Mbps
Megacom
Megacom 800
Refers to inside system lines and outside trunks in general
terms. See also line and trunk .
Physical interface on a module in the control unit for
connecting an outside trunk to the communications
system. Also called "trunk jack."
Module on which the jacks for connecting central office
lines/trunks and/or the jacks for connecting the extensions
are located.
A method for connecting an extension jack to an on-site
computer for data-only calls through a modem or data
module.
See access line.
Unique numeric identifier for each extensio n and line/trunk
jack in the system control unit.
Trunk on which a closure between the tip and ring leads is
used to originate or answer a call. High-voltage 20-Hz AC
ringing current from the central office signals an incoming
call.
An AT&T Music on Hold enhancement that promotes a
company's products or services or provides custom music
selection.
megabits per second
AT&T's tariffed digital WATS offering for outward calling.
AT&T's tariffed digital 800 offering for inward calling.
Maintenance and Troubleshooting
GL–21