Lucent Technologies DEFINITY Enterprise Communications Server Release 8 Guide To ACD Call Centers

DEFINITY ECS Release 8
Guide to ACD Call Centers  555-233-503  Issue 2
December 1999
Glossary and Abbreviations 
GL-33  
MSA
Message servicing adjunct
MSG
Message service
MSL
Material stocking location
MSM
Modular System Management
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...

DEFINITY ECS Release 8
Guide to ACD Call Centers  555-233-503  Issue 2
December 1999
Glossary and Abbreviations 
GL-34  
N
N+1
Method of determining redundant backup requirements. Example: if four rectifier modules are required for a 
DC-powered single-carrier cabinet, a fifth rectifier module is installed for backup.
N x DS0
N x DS0, equivalently referred to as N x 64 kbps, is an emerging standard for wideband calls separate from 
H0, H11, and H12 ISDN channels. The emerging N x DS0 ISDN multirate...

DEFINITY ECS Release 8
Guide to ACD Call Centers  555-233-503  Issue 2
December 1999
Glossary and Abbreviations 
GL-35  
NI
Network interface
NID
Network Inward Dialing
NM
Network management
NN
National number
node
A switching or control point for a network. Nodes are either tandem (they receive signals and pass them on) 
or terminal (they originate or terminate a transmission path).
Nonfacility-associated signaling (NFAS)
A method that allows multiple T1 and/or E1 facilities to share a single D-channel...

DEFINITY ECS Release 8
Guide to ACD Call Centers  555-233-503  Issue 2
December 1999
Glossary and Abbreviations 
GL-36  
offered load
The traffic that would be generated by all the requests for service occurring within a monitored interval, 
usually one hour.
ONS
On-premises station
OPS
Off-premises station
OPX
Off-premises extension
OQT
Oldest queued time
OSHA
Occupational Safety and Health Act
OSI
Open Systems Interconnect
OSS
Operations Support System
OSSI
Operational Support System Interface
OTDR...

DEFINITY ECS Release 8
Guide to ACD Call Centers  555-233-503  Issue 2
December 1999
Glossary and Abbreviations 
GL-37  
packet switching
A data-transmission technique whereby user information is segmented and routed in discrete data envelopes 
called packets, each with its own appended control information, for routing, sequencing, and error checking. 
Packet switching allows a channel to be occupied only during the transmission of a packet. On completion of 
the transmission, the channel is made...

DEFINITY ECS Release 8
Guide to ACD Call Centers  555-233-503  Issue 2
December 1999
Glossary and Abbreviations 
GL-38  
PIB
Processor interface board
pickup group
A group of individuals authorized to answer any call directed to an extension within the group.
PIDB
Product image database
PKTINT
Packet interface
PL
Private line
PLS
Premises Lightwave System
PMS
Property Management System
PN
Port network
PNA
Private network access
POE
Processor occupancy evaluation
POP
Point of presence
port
A data- or...

DEFINITY ECS Release 8
Guide to ACD Call Centers  555-233-503  Issue 2
December 1999
Glossary and Abbreviations 
GL-39  
primary extension
The main extension associated with the physical voice or data terminal.
Primary Rate Interface (PRI)
A standard ISDN frame format that specifies the protocol used between two or more communications 
systems. PRI runs at 1.544 Mbps and, as used in North America, provides 23 64-kbps B-channels (voice or 
data) and one 64-kbps D-channel (signaling). The D-channel is the...

DEFINITY ECS Release 8
Guide to ACD Call Centers  555-233-503  Issue 2
December 1999
Glossary and Abbreviations 
GL-40  
PT
Personal terminal
PTC
Positive temperature coefficient
PTT
Postal Telephone and Telegraph
public network
The network that can be openly accessed by all customers for local and long-distance calling.
pulse-code modulation (PCM)
An extension of pulse-amplitude modulation (PAM) in which carrier-signal pulses modulated by an analog 
signal, such as speech, are quantized and encoded to a...

DEFINITY ECS Release 8
Guide to ACD Call Centers  555-233-503  Issue 2
December 1999
Glossary and Abbreviations 
GL-41  
recall dial tone
Tones signalling that the system has completed a function (such as holding a call) and is ready to accept 
dialing.
redirection criteria
Information administered for each voice terminal’s coverage path that determines when an incoming call is 
redirected to coverage.
Redirection on No Answer
An optional feature that redirects an unanswered ringing ACD call after an...

DEFINITY ECS Release 8
Guide to ACD Call Centers  555-233-503  Issue 2
December 1999
Glossary and Abbreviations 
GL-42  
RS-232C
A physical interface specified by the Electronic Industries Association (EIA). RS-232C transmits and 
receives asynchronous data at speeds of up to 19.2 kbps over cable distances of up to 50 feet.
RS-449
Recommended Standard 449
RSC
Regional Support Center
ROSE
See Remote Operations Service Element (ROSE)
.
S
S1
The first logical signalling channel of DCP. The channel is used...