Northern Telecom 3X8, Руководство пользователя

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222 Glossary
T
TCM line (Time Compression
Multiplexing line): A two-wire
digital station loop joining the
cross-connect at the Key
Service Unit to a telephone.
Telephone lock (Set lock): A
feature that allows you to limit
the number of features that may
be used or programmed at a
telephone. Full telephone lock
allows very few changes or
features, Partial telephone lock
a l l o w s s o m e c h a n g e s a n d
features, and No telephone lock
allows any change to be made
and any feature to be used.
Telephone lock is assigned in
Administration programming.
Time and Date: A display
description. The current time
and date appear on the display
of idle
telephones. The
time and date can be changed
in Administration programming.
Transfer: A feature that lets you
send a call to another telephone
in your system or
external to You can
a l s o c r e a t e a n U n s u p e r v i s e d
Conference to do an external
t r a n s f e r . W h e n t r a n s f e r r i n g a n
external call to an external
number, at least one of the calls
must have been an incoming
call, and that call must be on a
d i s c o n n e c t s u p e r v i s e d l i n e . S e e
Unsupervised Conference and
Disconnect Supervision.
Transfer Callback: A feature
that returns a transferred call if it
is not answered after a specific
number of rings. The number of
rings is programmed by your
C u s t o m e r S e r v i c e
r e p r e s e n t a t i v e . T r a n s f e r
Callback does not apply to calls
t r a n s f e r r e d e x t e r n a l l y .
Trunk: A physical connection
between the system
and the outside world using
either the public telephone
system or a private network.
Trunk Answer: A feature you
can use to answer a call on any
line that has an active Service
Mode, even if that line does not
appear on your telephone.
Trunk Answer is activated in
Administration programming.
U
Unsupervised Conference: A
conference that you have
dropped out of leaving the other
t w o p a r t i e s c o n n e c t e d . W h e n
both other parties are external
to
at least one of the
outside callers must have called
you, and that call must be on a
d i s c o n n e c t s u p e r v i s e d l i n e . S e e
Disconnect Supervision.
Owner’s Handbook PO84262701