Instruction manual

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
555-650-140
Issue 1
June 1997
Glossary
Page GL-29
N
O
network Configuration of communications devices and
software connected for information interchange.
network interface Hardware, software, or both that links two systems in
an interconnected group of systems, for example,
between the local telephone company and a PBX.
off-hook Telephone is said to be off-hook when the user has
lifted the handset, pressed the Speaker button to
turn on the speakerphone, or used a headset to
connect to the communications system or the
telephone network.
off-premises
telephone
See OPT.
ones density Requirement for channelized DS1 service to the
public network that eight consecutive zeroes cannot
occur 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 either to the
communications system or the telephone network.