AT&T MERLIN LEGEND Data Manual page 144

Glossary
loop-start (LS) line/trunk
A line/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 from the central office (CO) signals an incoming call.
M
Magic on Hold®
A customized Music-on-Hold (MOH) system enhancement that promotes the customer's products and services.
Megacom
AT&T's tariffed digital WATS (wide area telecommunications service) offering for outward calling.
Megacom 800
AT&T's tariffed digital 800 service for inward calling.
MERLIN LEGEND™ Attendant
An application with equipment that connects to one or more tip/ring station ports and automatically answers incoming calls
with a recorded announcement, In response to touch-tone digits dialed by the caller, MERLIN LEGEND™ Attendant directs
the caller to a department, an extension, or the system operator.
MERLIN MAIL® Voice Messaging System
An application that provides automated attendant, call answering, and voice-mail services on the communications system.
MLX-10/MLX-10D telephone
A 10-button telephone offered with or without a 2-line by 24-character, menu-driven display.
MLX-20L telephone
A telephone with 20 programmable line or feature buttons and a 7-line by 24-character, menu-driven display.
MLX-28D telephone
A telephone with 28 programmable line or feature buttons and a 2-line by 24-character, menu-driven display.
modem
A device that converts digital data signals to analog signals for transmission over telephone lines. The analog signals are
converted back to the original digital data signals by another modem at the other end of the line.
modem pool
A pair, or group of pairs, of modems and data modules with interconnected RS-232 interfaces that converts digital signals to
analog, or analog signals to digital, thereby allowing users with Integrated Digital Services Network (ISDN) digital data
stations to communicate with users who have analog stations.
Multi-Function Module (MFM)
An adapter that provides a tip/ring interface for the connection of optional equipment such as answering machines, external
alerts, and fax machines to a digital/lSDN (MLX) telephone. The optional equipment and the MLX telephone operate
simultaneously and independently. The MFM is installed inside the MLX telephone.
multiplexing
A process in which a transmission channel is divided into two or more channels, either by splitting the frequency band into a
number of narrower bands or by dividing the channel into successive time slots.
Music-on-Hold (MOH)
Magic on Hold or a customer-provided music source connected to the communications system via a loop-start (LS) jack.
Most MOH equipment is designed for LS operation.
Note: If you use equipment that rebroadcasts music or other copyrighted materials, you maybe required to obtain a
copyright license from and pay fees to a third party such as the American Society of Composers, Artists, and Producers
(ASCAP) or Broadcast Music Incorporated (BMI). Or you can purchase a Magic on Hold system, which does not require
such a license, from AT&T or your authorized AT&T dealer.
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