Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Instructions Manual

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Glossary and abbreviations 
1647  
GL
H12
An ISDN information transfer rate for 1920-kbps data defined by CCITT and ANSI standards.
handshaking logic
A format used to initiate a data connection between two data module devices.
hertz (Hz)
A unit of frequency equal to one cycle per second.
high-reliability system
A system having the following: two control carriers, duplicate expansion interface (EI) circuit packs in the 
PPN...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Glossary and abbreviations 
1648  
GL
IAS
Inter-PBX Attendant Service
ICC
Intercabinet cable or intercarrier cable
ICD
Inbound Call Director
ICDOS
International Customer-Dialed Operator Service
ICHT
Incoming call-handling table
ICI
Incoming call identifier
ICM
Inbound Call Management
IDDD
International Direct Distance Dialing
IDF
Intermediate distribution frame
IE
Information element
immediate-start tie trunk
A trunk on...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Glossary and abbreviations 
1649  
GL
INS
ISDN Network Service
inside call
A call placed from one telephone to another within the local communications system. 
Integrated Services Digital Network (ISDN)
A public or private network that provides end-to-end digital communications for all services to which users 
have access by a limited set of standard multipurpose user-network interfaces defined by the CCITT. Through...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Glossary and abbreviations 
1650  
GL
in-use lamp
A red light on a multiappearance voice terminal that lights to show which call appearance will be selected 
when the handset is lifted or which call appearance is active when a user is off-hook.
INWATS
Inward Wide Area Telephone Service
IO
Information outlet
ISDN
See Integrated Services Digital Network (ISDN).
ISDN Gateway (IG)
A feature allowing integration of the switch and...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Glossary and abbreviations 
1651  
GL
kbyte
Kilobyte
kg
Kilogram
L
LAN
Local area network
LAP-D
Link Access Procedure on the D-channel
LAPD
Link Access Procedure data
LATA
Local access and transport area
lb
Pound
LBO
Line buildout
LDN
Listed directory number
LDS
Long-distance service
LEC
Local exchange carrier
LED
See light-emitting diode (LED).
light-emitting diode (LED)
A semiconductor device that produces light when...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Glossary and abbreviations 
1652  
GL
line buildout
A selectable output attenuation is generally required of DTE equipment because T1 circuits require the last 
span to lose 15–22.5 dB.
line port
Hardware that provides the access point to a communications system for each circuit associated with a tele-
phone or data terminal.
link
A transmitter-receiver channel that connects two systems.
link-access procedure on the...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Glossary and abbreviations 
1653  
GL
main-satellite-tributary
A private network configuration that can either stand alone or access an ETN. A main switch provides inter-
connection, via tie trunks, with one or more subtending switches, called satellites; all attendant positions for 
the main/satellite configuration; and access to and from the public network. To a user outside the complex, a 
main/satellite configuration...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Glossary and abbreviations 
1654  
GL
MDR
Message detail record
MEM
Memory
memory
A device into which information can be copied and held, and from which information can later be obtained.
memory shadowing link
An operating-system condition that provides a method for memory-resident programs to be more quickly 
accessed, allowing a system to reboot faster.
message center
An answering service that supplies agents to and stores...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Glossary and abbreviations 
1655  
GL
MMS
Material Management Services
MO
Maintenance object
modem
A device that converts digital data signals to analog signals for transmission over telephone circuits. The ana-
log signals are converted back to the original digital data signals by another modem at the other end of the cir-
cuit.
modem pooling
A capability that provides shared conversion resources (modems and data modules)...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1.1
June 2000
Glossary and abbreviations 
1656  
GL
MSS
Mass storage system
MSSNET
Mass storage/network control
MT
Management terminal
MTDM
Modular trunk data module
MTP
Maintenance tape processor
MTT
Multitasking terminal
multiappearance voice terminal
A terminal equipped with several call-appearance buttons for the same extension, allowing the user to handle 
more than one call on that same extension at the same time.
Multicarrier...