Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Upgrades And Additions Manual

							DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r  555-233-115  Issue 1
April 2000
Glossary and Abbreviations 
GL-17  
dial-repeating tie trunk
A tie trunk that transmits c alled -p arty ad d ressing  information between two c ommunic ations 
systems.
DID
Direc t Inward  Dialing
digit conversion
A process used  to c onvert spec ific d ialed  numbers into other d ialed numb ers.
digital
The rep resentation of information b y d isc rete step s. See also 
analog.
digital communications protocol (DCP)
A proprietary protoc ol used  to transmit both d igitized voice and  d ig itized  data over the same 
communications link. A DCP link is made up of two 64-kb p s information (I-) c hannels and  one 
8-kb ps signaling (S-) channel. 
digital data endpoints
In DEFINITY ECS, devic es such as the 510D terminal or the 515-type b usiness c ommunic ations 
terminal (BCT).
digital multiplexed interface (DMI)
An interface that p rovid es connec tivity b etween a c ommunic ations system and a host c omp uter or 
b etween two c ommunic ations systems using  DS1 24th-c hannel sig naling . DMI provid es 23 
64-kb p s d ata c hannels and  1 c ommon-sig naling  c hannel over a twisted-p air c onnec tion. DMI is 
offered through two cap ab ilities: b it-oriented sig naling  (DMI-BOS) and messag e-oriented  sig naling  
(DMI-MOS).
digital signal level 0 (DS0)
A sing le 64-kb ps voic e c hannel. A DS0 is a single 64-kb p s c hannel in a T1 or E1 fac ility and  
consists of eig ht b its in a T1 or E1 frame every 125 mic rosec ond s.
digital signal level 1 (DS1)
A sing le 1.544-Mb ps (United  States) or 2.048-Mb p s (outsid e the United  States) d ig ital sig nal 
carried  on a T1 transmission fac ility. A DS1 converter c omplex c onsists of a p air, one at eac h end, 
of DS1 c onverter c ircuit p acks and  the assoc iated  T1/E1 facilities.
digital terminal data module (DTDM)
An integ rated or ad junc t d ata mod ule that shares with a d ig ital telep hone the same p hysic al p ort 
for c onnection to a c ommunic ations system. The func tion of a DTDM is similar to that of a PDM and  
MPDM in that it c onverts RS-232C sig nals to DCP sig nals.
digital-to-analog converter (DAC)
A devic e that c onverts d ata in d ig ital form to the c orresp ond ing  analog sig nals. See also 
analog -to-d ig ital c onverter (ADC).
digital transmission
A mod e of transmission in whic h information to be transmitted  is first converted  to dig ital form and  
then transmitted  as a serial stream of pulses.
digital trunk
A circ uit that carries d ig ital voice and /or d igital d ata in a telec ommunic ations c hannel.
DIOD
Direct Inward  and Outward  Dialing 
						

							DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r  555-233-115  Issue 1
April 2000
Glossary and Abbreviations 
GL-18  
direct agent
A feature, acc essed  only via ASAI, that allows a call to b e p laced  in a sp lit q ueue b ut routed only to 
a spec ific ag ent in that sp lit. The c all receives normal ACD c all treatment (for examp le, 
announcements) and  is measured  as an ACD c all while ensuring  that a p artic ular ag ent answers.
Direct Extension Selection (DXS)
A feature on an attend ant console that allows an attend ant d irec t ac c ess to voic e terminals b y 
p ressing  a g roup-select b utton and  a DXS b utton.
Direct Inward Dialing (DID)
A feature that allows an incoming c all from the pub lic  network (not FX or WATS) to reac h a spec ific 
telep hone without attend ant assistance.
Direct Inward Dialing (DID) trunk
An inc oming  trunk used  for d ialing  d irec tly from the pub lic  network into a communic ations system 
without help  from the attend ant.
disk drive
An elec tromechanic al d evic e that stores data on and retrieves d ata from one or more d isks.
distributed communications system (DCS)
A network c onfig uration linking  two or more c ommunic ations systems in suc h a way that selec ted  
features ap p ear to op erate as if the network were one system.
DIVA
Data In/Voic e Answer
DLC
Data line c irc uit
DLDM
Data-line data module
DMI
Dig ital-multip lexed  interfac e
DND
Do not d isturb
DNIS
Dialed -Numb er Id entific ation Servic e
DOD
Direct Outward  Dialing
domain
VDNs, ACD sp lits, and  stations. The VDN d omain is used  for active-notific ation assoc iations. The 
ACD-sp lit d omain is for ac tive-notification associations and  d omain-c ontrol associations. The 
station d omain is used  for the d omain-c ontrol assoc iations.
domain-control association
A 
Third  Party Domain Control Request c ap ability initiates a uniq ue CRV/link numb er comb ination, 
whic h is referred  to as a d omain-c ontrol assoc iation.
domain-controlled split
A sp lit for whic h 
Third  Party Domain Control req uest has been ac cep ted . A d omain-controlled sp lit 
p rovid es an event rep ort for log out. 
						

							DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r  555-233-115  Issue 1
April 2000
Glossary and Abbreviations 
GL-19  
domain-controlled station
A station for whic h a 
Third_Party_Domain_Control req uest has been acc epted . A 
d omain-c ontrolled  station p rovid es event rep orts for c alls that are alerting , c onnected, or held  at 
the station.
domain-controlled station on a call
A station that is active on a c all, and  whic h p rovid es event rep orts over one or two d omain-control 
assoc iations.
DOSS
Delivery Operations Sup p ort System
DOT
Dup lic ation Option Terminal
DPM
Dial Plan Manag er
DPR
Dual-port RAM
DS1
Digital Signal Level 1
DS1C
Dig ital Sig nal Level-1 p rotoc ol C
DS1 CONV
Dig ital Sig nal Level-1 c onverter
DSI
Digital signal interface
DSU
Data servic e unit
DTDM
Dig ital-terminal d ata mod ule
DTE
Data-terminal eq uip ment
DTGS
Direct Trunk Group Select
DTMF
Dual-tone multifreq uenc y
DTS
Disk-tap e system
duplicated common control
Two p roc essors ensuring  continuous op eration of a c ommunic ations system. While one p roc essor 
is online, the other functions as a b ac kup . The b ac kup p roc essor g oes online period ically or when 
a p rob lem oc c urs.
duplication
The use of redundant c omp onents to imp rove availab ility. When a d up lic ated  subsystem fails, its 
b ac kup  redund ant system automatically takes over. 
						

							DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r  555-233-115  Issue 1
April 2000
Glossary and Abbreviations 
GL-20  
duplication option
A  s ys te m  o p ti o n t ha t  d u p li c a t e s th e  f o ll o w in g :  c on t rol  c a r r ie r  c o nt a in i ng  t he  SPE, EI  c i rc ui t  p a c ks i n 
carriers, fiber-optic c abling  b etween p ort networks, and  c enter-stage switch in a CSS-c onnec ted  
system.
DWBS
DEFINITY Wireless Business System
DXS
Direct extension selection
E
E1
A dig ital transmission stand ard  that c arries traffic  at 2.048 Mbp s. The E1 facility is d ivided  into 32 
channels (DS0s) of 64 kb p s information. Channel 0 is reserved for framing and  synchronization 
information. A D-c hannel oc cup ies c hannel 16.
E & M
Ear and  mouth (rec eive and  transmit)
EA
Exp ansion arc hang el
EAL
Exp ansion arc hang el link
ear and mouth (E & M) signaling
Trunk sup ervisory sig naling , used  b etween two c ommunic ations systems, whereby signaling 
information is transferred  throug h 2-state voltage conditions (on the E and  M leads) for analog  
ap p lic ations and  through a sing le b it for d igital app lic ations.
EEBCDIC
Extend ed  Binary-Cod ed  Dec imal Interexc hang e Cod e
ECC
Error Correc t Cod e
ECMA
Europ ean Comp uter Manufac turers Assoc iation
EFP
Electronic p ower feed
EI
Exp ansion interface
EIA
Electronic Industries Assoc iation
EIA-232
A physic al interface sp ecified  by the EIA. EIA-232 transmits and  receives async hronous d ata at 
sp eed s of up  to 19.2 kbp s over cab le d istanc es of up  to 50 feet. EIA-232 rep laces RS-232 p rotocol 
in some DEFINITY ap plications. 
						

							DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r  555-233-115  Issue 1
April 2000
Glossary and Abbreviations 
GL-21  
electronic tandem network (ETN)
A tandem tie-trunk network that has automatic  call-routing  cap ab ilities b ased  on the numb er 
d ialed  and  the most preferred  route available. Each switch in the network is assig ned  a uniq ue 
p rivate network offic e c od e (RNX), and  eac h voic e terminal is assigned  a unique extension.
Electronics Industries Association (EIA)
A trad e assoc iation of the elec tronic s ind ustry that establishes electrical and func tional stand ard s.
emergency transfer
If a major system failure occ urs, automatic  transfer is initiated  to a g roup  of telep hones c apab le of 
making outg oing  c alls. The system operates in this mode until the failure is repaired  and  the 
system automatic ally returns to normal operation. Also called  p ower-failure transfer.
EMI
Electromagnetic  interferenc e
end-to-end signaling
The transmission of touc h-tone sig nals g enerated b y d ialing  from a voic e terminal to remote 
comp uter equip ment. These d ig its are sent over the trunk as DTMF dig its whether the trunk 
sig naling  type is marked  as tone or rotary and  whether the orig inating station is tone or rotary. 
Examp le: a c all to a voic e-mail mac hine or automated -attend ant servic e. A connec tion is first 
estab lished  over an outg oing  trunk. Then ad ditional d ig its are d ialed to transmit information to be 
p rocessed b y the c omp uter eq uip ment.
enhanced private-switched communications service (EPSCS)
An analog  p rivate telec ommunic ations network based  on the No. 5 crossb ar and  1A ESS that 
p rovid es ad vanced  voic e and d ata telecommunications servic es to c ompanies with many 
loc ations.
EPN
Exp ansion-p ort network
EPROM
Erasab le p rog rammab le read-only memory
EPSCS
Enhanc ed  Private Switc hed  Communic ations Services
ERL
Ec h o re tu r n  lo ss
Erlang
A unit of traffic intensity, or load , used  to exp ress the amount of traffic  need ed  to keep  one fac ility 
b usy for one hour. One Erlang  is equal to 36 CCS. See also 
CCS or hund red  c all sec onds.
ESF
Extend ed  sup erframe format
ESPA
Europ e an  Sta n d ard  Pa g in g  A c c es s
ETA
Extend ed  Trunk Ac c ess; also Enhanc ed Terminal Ad ministration
ETN
Electronic tand em network
ETSI
Europ ean Telec ommunic ations Stand ard s Institute 
						

							DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r  555-233-115  Issue 1
April 2000
Glossary and Abbreviations 
GL-22  
expansion archangel (EAA)
A network-control mic rop roc essor loc ated on an expansion interfac e (EI) port c irc uit p ack in an 
exp ansion p ort network. The EA provides an interfac e b etween the EPN and  its c ontrolling 
switch-p roc essing  element.
expansion-archangel link (EAL)
A link-ac c ess func tion on the D-c hannel (LAPD) log ical link that exists between a 
switch-p roc essing  element and an exp ansion archang el (EA). The EAL c arries c ontrol messag es 
from the SPE to the EA and  to p ort c irc uit p ac ks in an exp ansion p ort network.
expansion control cabinet
See  
expansion c ontrol c arrier.
expansion control carrier
A carrier in a multic arrier cab inet that c ontains extra p ort circ uit p ac ks and  a maintenance 
interfac e. Also called  expansion control c ab inet in a sing le-c arrier c abinet.
expansion interface (EI)
A port c ircuit p ack in a p ort network that p rovid es the interfac e between a PN’s TDM b us/ p acket 
b us and a fib er-op tic  link. The EI c arries circuit-switc hed  data, p acket-switc hed  data, network 
control, timing  control, and  DS1 c ontrol. In ad d ition, an EI in an expansion p ort network 
communicates with the master maintenanc e c irc uit pac k to p rovid e the EPN’s environmental and  
alarm status to the switc h-p roc essing element.
expansion port network (EPN)
A p ort network (PN) that is connec ted  to the TDM b us and  p acket b us of a processor p ort network 
(PPN). Control is ac hieved  by ind irec t connec tion of the EPN to the PPN via a p ort-network link 
(PNL). See also 
p ort network (PN).
extension-in
Extension-In (ExtIn) is the work state agents g o into when they answer (rec eive) a non-ACD c all. If 
the ag ent is in Manual-In or Auto-In and  receives an extension-in c all, it is rec ord ed b y CMS as an 
AUX-In call.
extension-out
The work state that ag ents g o into when they p lac e (orig inate) a non-ACD call.
external measurements
Those ACD measurements that are mad e b y the External CMS ad junc t.
extension
A 1- to 5-d ig it numb er b y whic h calls are routed  throug h a c ommunic ations system or, with a 
Uniform Dial Plan (UDP) or main-satellite d ialing  p lan, through a p rivate network.
external call
A connection b etween a c ommunic ations system user and a party on the p ub lic  network or on 
another communications system in a p rivate network.
F
FA C
Feature Ac c ess Cod e
facility
A telec ommunic ations transmission pathway and  associated  eq uip ment. 
						

							DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r  555-233-115  Issue 1
April 2000
Glossary and Abbreviations 
GL-23  
facility-associated signaling (FAS)
Sig naling  for whic h a D-channel c arries sig naling  only for those c hannels on the same physical 
interfac e.
FA S
Facility-associated signaling
FAT
Facility access trunk
FA X
Fac simile
FCC
Fed eral Communic ations Commission
FEAC
Forced  Entry of Acc ount Cod es
feature
A sp ec ific ally d efined  function or servic e provided  by the system.
feature button
A lab eled  b utton on a telephone or attendant c onsole used  to acc ess a sp ecific  feature.
FEP
Front-end  p roc essor
FIC
Fac ility interfac e c od es
fiber optics
A tec hnolog y using  materials that transmit ultrawideb and  electromag netic  light-freq uency ranges 
for hig h-cap ac ity carrier systems.
fixed
A trunk alloc ation term. In the fixed  alloc ation sc heme, the time slots nec essary to sup port a 
wid eb and  call are contig uous, and  the first time slot is constrained  to c ertain starting p oints.
flexible
A trunk alloc ation term. In the flexib le allocation sc heme, the time slots of a wid eband c all can 
oc c up y nonc ontiguous positions within a single T1 or E1 facility.
floating
A trunk alloc ation term. In the floating  alloc ation sc heme, the time slots of a wideb and  call are 
contig uous, b ut the p osition of the first time slot is not fixed.
FNPA
Foreig n Numb ering -Plan Area
foreign-exchange (FX)
A CO other than the one p roviding loc al acc ess to the pub lic  telep hone network.
foreign-exchange trunk
A telec ommunic ations channel that direc tly connects the system to a CO other than its local CO.
foreign numbering-plan area code (FNPAC)
An area cod e other than the loc al area c ode, that must be d ialed  to c all outside the loc al 
g eog rap hic al area. 
						

							DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r  555-233-115  Issue 1
April 2000
Glossary and Abbreviations 
GL-24  
FRL
Fac ilities Restric tion Level
FX
Foreig n exc hang e
G
G3-MA
Generic  3 Manag ement Ap p lic ations
G3-MT
Generic 3 Manag ement Terminal
G3r
Generic 3, RISC (Red uced  Instruc tion Set Comp uter)
generalized route selection (GRS)
An enhanc ement to Automatic Alternate Routing/Automatic Route Selec tion (AAR/ARS) that 
p erforms routing  b ased  on c all attrib utes, suc h as Bearer Capab ility Classes (BCCs), in add ition to 
the ad d ress and  fac ilities restric tion level (FRL), thus facilitating  a Uniform Dial Plan (UDP) that is 
ind ep end ent of the type of c all being  p laced .
glare
The simultaneous seizure of a 2-way trunk b y two communications systems, resulting in a stand off.
GM
Group  manag er
GPTR
General-p urp ose tone receiver
grade of service
The numb er of call attemp ts that fail to rec eive servic e immed iately. Grad e of servic e is also 
exp ressed  as the q uantity of all c alls that are b loc ked  or d elayed .
ground-start trunk
A trunk on whic h, for outgoing  calls, the system transmits a req uest for servic es to a distant 
switching  system b y g round ing  the trunk ring  lead . To receive the d ig its of the called  numb er, that 
system g round s the trunk tip  lead . When the system d etec ts this g round , the dig its are sent.
GRS
Generalized  Route Selec tion
H
H0
An ISDN information transfer rate for 384-kbp s d ata d efined  by CCITT and  ANSI standards.
H11
An ISDN information transfer rate for 1536-kb p s d ata defined  b y CCITT and  ANSI stand ard s. 
						

							DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r  555-233-115  Issue 1
April 2000
Glossary and Abbreviations 
GL-25  
H12
An ISDN information transfer rate for 1920-kb p s d ata defined  b y CCITT and  ANSI stand ard s.
handshaking logic
A format used to initiate a d ata c onnec tion b etween two d ata module d evices.
hertz (Hz)
A unit of freq uenc y equal to one c yc le p er sec ond .
high-reliability system
A system having the following : two c ontrol carriers, d up lic ate exp ansion interfac e (EI) circ uit p ac ks 
in the PPN (in R5r with CSS), and  d up licate switc h node c lock circuit p acks in the switch nod e (SN) 
c arriers. See also 
d up lic ated  c ommon c ontrol, duplication, d up lic ation op tion, and 
c ritic al-reliab ility system.
HNPA
See  
home numb ering -p lan area c ode (HNPA).
holding time
The total leng th of time in minutes and  second s that a fac ility is used  d uring a call.
home numbering-plan area code (HNPA)
The local area c od e. The area c ode d oes not have to be d ialed  to c all numb ers within the loc al 
g eog rap hic al area.
hop
Nond irect c ommunic ation b etween two switc h c ommunic ations interfac es (SCI) where the SCI 
messag e p asses automatically without intermed iate p rocessing  through one or more intermed iate 
SC Is .
host computer
A comp uter, connec ted  to a network, that p roc esses d ata from d ata-entry d evic es.
hunt group
A group  of extensions that are assigned the Station Hunting  feature so that a call to a b usy 
extension reroutes to an id le extension in the g roup . See also 
ACD work mod e.
Hz
See  
hertz (Hz).
I
I1
The first information channel of DCP.
I2
The second information channel of DCP.
I2 Interface
A proprietary interfac e used  for the DEFINITY Wireless Business System for the rad io-c ontroller 
circuit p acks. Eac h interface p rovid es communication b etween the rad io-c ontroller circuit p ac k 
and  up  to two wireless fixed  bases. 
I3 Interface
A p rop rietary interface used  for the DEFINITY Wireless Business System for the cell antenna units. 
Eac h wireless fixed  b ase can c ommunic ate to up  to four cell antenna units. 
						

							DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r  555-233-115  Issue 1
April 2000
Glossary and Abbreviations 
GL-26  
IAS
Inter-PBX Attend ant Servic e
ICC
Interc abinet c ab le or intercarrier c ab le
ICD
Inbound Call Director
ICDOS
International Customer-Dialed  Op erator Service
ICHT
Incoming call-handling table
ICI
Inc oming  call id entifier
ICM
Inb ound  Call Management
IDDD
International Direc t Distance Dialing
IDF
Intermed iate d istribution frame
IE
Information element
immediate-start tie trunk
A trunk on whic h, after making a connec tion with a distant switc hing  system for an outg oing  c all, 
the system waits a nominal 65 ms b efore sending the d ig its of the c alled  numb er. This allows time 
for the d istant system to p rep are to receive dig its. On an inc oming  c all, the system has less than 
65 ms to p rep are to receive the dig its.
IMT
Intermac hine trunk
in
Inc h
INADS
Initialization and  Administration System
incoming gateway
A PBX that routes an incoming c all on a trunk 
not ad ministered  for Sup p lementary Servic es 
Protoc ol B to a trunk 
not ad ministered  for Sup plementary Services Protocol B.
information exchange
The exchang e of data b etween users of two d ifferent systems, suc h as the switc h and a host 
comp uter, over a LAN.
Information Systems Network (ISN)
A WAN and  LAN with an op en arc hitecture c ombining  host c omputers, minicomp uters, word 
p rocessors, storag e d evices, PCs, hig h-sp eed  p rinters, and nonintelligent terminals into a sing le 
p ac ket-switching  system.
INS
ISDN Network Servic e