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User Guide - single line telephone
Off-Hook
When you lift the handset you are
“going off-hook.” Early telephones
had a metal hook on which the hand-
set hung.
On-Hook
When the phone handset is resting in
the cradle. See Off-Hook.
Outside Line
See Trunk.
Service Mode
The way calls are handled depending
on the time of day. For example,
your company’s phone system may
be configured so that in Day Service
Mode all incoming calls are routed
through the attendant. In Night
Service Mode, incoming calls may
be broadcast over a loud bell for
anyone to answer.
Station
Another word for extension.
System Administrator
The person responsible for your
company’s telephones. It may be an
outside business, or a person or
department at your company.
Essentially, whoever you go to to
report problems with your phone or
to request changes in your telephone
service.
Class of Service
Your level of access to certain fea-
tures. Your company’s phone system
may assign a different class of ser-
vice to particular extensions, to
restrict access to certain features.
See also Tenant Group.
Flash Key
A key on your telephone marked
with a lightening bolt. If you do not
have a flash key to press, you can
get the same effect by pressing and
releasing the hookswitch. Doing this
is known as a hookflash.
Hookflash
The act of pressing and releasing the
hookswitch.
Hookswitch
The lever the handset presses down
on when it is in the cradle. See Off-
hook.
Hunt Group
A group of extensions with a com-
mon access number, organized in
such a way that calls “hunt” from
extension to extension to find a free
line. See also UCD.
Intercom
An intercom call is a call between
extensions of your company’s phone
system.