Lucent Technologies MERLIN LEGEND Release 7.0 System Programming Manual page 1046

MERLIN LEGEND Communications System Release 7.0
System Programming 555-670-111
Glossary
DSL
DSS
DTE
DTMF signaling
E
E&M Signaling
EIA
EIA-232-D
Electronic
Switching System
Endpoint
Enhanced Service
Center
ESF
ESS
ETR Telephone
Digital Subscriber Line . Digital Subscriber Line provides
full-duplex service on a single twisted metallic pair (2-wire)
at a rate sufficient to support ISDN Basic Rate Access.
Direct Station Selector . 60-button adjunct that enhances
the call-handling capabilities of an MLX-20L or MLX-28D
telephone used as an operator console.
Data Terminal Equipment . Equipment that makes the
endpoints in a connection over a data connection—for
example, a data terminal, personal computer, host
computer, or printer.
Dual-Tone Multifrequency Signaling . Touch-tone signaling
from telephones using the voice transmission path. DTMF
signaling provides 12 distinct signals, each representing a
dialed digit or character, and each composed of two
voiceband frequencies.
Trunk supervisory signaling, used between two
communications systems, in which signaling information is
transferred through two-state voltage conditions (on the Ear
and Mouth leads) for analog applications and through two
bits for digital applications. See also
Electronic Industries Association .
Physical interface, specified by the EIA , that transmits and
receives asynchronous data at speeds of up to 19.2-kbps
over cable distances of 50 feet (15 meters).
See ESS .
Final destination in the path of an electrical or
telecommunications signal.
Application that sends calls to available agents in a calling
group. The Enhanced Service Center places calls in queue,
plays announcements, tracks agent activity and availability,
and provides real-time reports.
Extended Superframe Format . PRI framing format
consisting of individual frames of 24 eight-bit slots and one
signal bit (193 bits) in a 24-frame extended superframe.
Electronic Switching System . Class of central office ( CO )
switching systems developed by Lucent Technologies in
which the control functions are performed principally by
electronic data processors operating under the direction of
a stored program.
Enhanced tip/ring telephones (Series 4) supported in
MERLIN LEGEND Release 7.0 and later.
Issue 1
April 1999
GL-12
Tie Trunk
.