Lucent Technologies 555-670-111 Manuale Utente

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MERLIN LEGEND Communications System Release 7.0
System Programming  
555-670-111  
Issue 1
April 1999
Glossary 
GL-21
 
O
NI-1 BRI
National Integrated Services Digital Network 1 Basic Rate 
Interface. Type of digital facility that carries the equivalent 
of three lines. Two are called 
B-channels and provide voice 
and data communications services. A third 
D-channel 
controls signaling and maintains operations on the 
B-channels.
Non-Local Dial 
Plan
In a system that is part of a 
private network, list of 
extension ranges that the local system references in order 
to route non-local 
intersystem calls via UDP.
Non-Local 
Extension
In a system that is part of a 
private network, extension that 
is in the 
non-local dial plan.
Non-Local User
In a 
private network, user who is connected to another 
system in the network and not to the local system.
Non-Satellite 
System
In a 
private network, communications system that is directly 
connected to and located more than 200 miles from the 
local system.
Off-Hook 
Telephone is said to be off-hook when the user has lifted 
the handset, pressed the Speakerphone button to turn on 
the speakerphone, or used a headset to connect to the 
communications system or the telephone network.
Off-Premises 
Telephone
Se
.
Ones Density 
Requirement for channelized 
DS1 service to the public 
network that prohibits eight consecutive zeros in a digital 
data stream.
On-Hook 
Telephone is said to be on-hook when the handset is hung 
up, the speakerphone is turned off, and the user is not 
using a headset to connect to the communications system 
or the telephone network.
OPT 
Off-Premises Telephone. Single-line telephone or other tip/
ring device connected to the system via a 008 OPT module 
in the control unit. Appears as an inside extension to the 
system, but may be physically located away from the 
system.
OPX
Off-Premises Extension.
Out-of-Band 
Signaling
Signaling that uses the same path as voice-frequency 
transmission and in which the signaling is outside the band 
used for voice frequencies.