C}IAPTER 5. GLOSSARY
lndivkfual
Paoe
l{unbe.
A number thai identities a person who receives a radio page.
lnterlept
Tone
An altermting high and
low
tone-indicates
a
dialing
enor or
denial
of the service .equ€sted.
tn-Ulc Ligt
An indicator light on a nultr-appearance voicE terminal-indicates whether or not a particular
appeaaance
is in use.
hregraled S..vir:es Digital
Xetwo* (lsDlf)/Rinr.y
Ral€
l
ertace
(PRl)
A feature
ttEt
allows
lhe
System 85 and
DEFINrrY Generic
2
to
interconnsct
with private and
public
networks that
usE
th€
ISDN
standards.
Lin€
Single]ine-the
tamily of telephones/voice t€nninals that support only one call al
a
time
Muttlappearanc€-the
lamily ot voice terminals on which more than one call, lypically three,
can be handled
at
the same time on the same extension number. Only one call at
a
time can
have a voice
connection.
Other
calls can be ringing or on hold.
Lockori
(Line)
A condilion in which a
line is taken out
of
servic€ because the handset
is ofi-hook for
10
seconds
without anyone dialing.
Meslage Ccnter
A
servbe that provides for answering calls lhat would otherwise go lnanswered. The sedrce
accepts
and stores messages for ialer retrieval.
Mulli.Appeaaence
Voice
Tenninal
A voice teminal equipped with several
appearance
buttons
tor
the same extension number
to allow the user to handle more than one call, on that same extension number.
lrultilocation Customer
A
customer having switching syslems at more than one location.
+7
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