Lucent Technologies 555-670-111 Manual Do Utilizador
MERLIN LEGEND Communications System Release 7.0
System Programming
System Programming
555-670-111
Issue 1
April 1999
Glossary
GL-12
E
DSL
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.
full-duplex service on a single twisted metallic pair (2-wire)
at a rate sufficient to support ISDN Basic Rate Access.
DSS
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.
the call-handling capabilities of an MLX-20L or MLX-28D
telephone used as an operator console.
DTE
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.
endpoints in a connection over a data connection—for
example, a data terminal, personal computer, host
computer, or printer.
DTMF signaling
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.
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.
E&M Signaling
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
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
.
EIA
Electronic Industries Association.
EIA-232-D
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).
over cable distances of 50 feet (15 meters).
Electronic
Switching System
Switching System
See
.
Endpoint
Final destination in the path of an electrical or
telecommunications signal.
telecommunications signal.
Enhanced Service
Center
Center
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.
group. The Enhanced Service Center places calls in queue,
plays announcements, tracks agent activity and availability,
and provides real-time reports.
ESF
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.
consisting of individual frames of 24 eight-bit slots and one
signal bit (193 bits) in a 24-frame extended superframe.
ESS
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.
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.
ETR Telephone
Enhanced tip/ring telephones (Series 4) supported in
MERLIN LEGEND Release 7.0 and later.
MERLIN LEGEND Release 7.0 and later.