Lucent Technologies 555-670-111 Manuale Utente
MERLIN LEGEND Communications System Release 7.0
System Programming
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
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.
B-channels.
Non-Local Dial
Plan
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
to route non-local
intersystem calls via UDP.
Non-Local
Extension
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
System
In a
private network, communications system that is directly
connected to and located more than 200 miles from the
local system.
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.
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
Telephone
See
.
Ones Density
Requirement for channelized
DS1 service to the public
network that prohibits eight consecutive zeros in a digital
data stream.
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.
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.
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
Signaling that uses the same path as voice-frequency
transmission and in which the signaling is outside the band
used for voice frequencies.
transmission and in which the signaling is outside the band
used for voice frequencies.