AT&T SYSTEM 25 User Manual page 57

hold
incoming calls
group
inside call
manual
signaling
message
waiting
night service
off-hook
on-hook
outside call
outside line
paging
park
feature that temporarily suspends a call.
group of voice terminals to which
incoming calls are distributed among the
group members. Also known as direct group
calling, DGC group.
call between two or more System 25 voice
terminals. It is signaled by one long ring.
feature that sends an audible alert to
another voice terminal without calling that
voice terminal.
feature that allows you to turn on the
message light at another voice terminal
feature that allows you to answer calls when
the Attendant is not available.
a voice terminal is off-hook when either the
handset has been removed from its cradle
(releasing the switchhook button) or the
speaker/speakerphone is turned on.
a voice terminal is on-hook when the handset
is in its cradle (depressing the switchhook
button) and the speaker/speakerphone is
turned off.
call between a System 25 voice terminal and a
voice terminal not connected to System 25.
Outside calls are made over Central Office or
other trunks and are signaled by two short
rings.
a line to the Central Office or other system.
Outside lines may be accessed by pressing
special buttons or by dialing an access code.
feature that allows you to access paging
equipment from System 25 voice terminals.
feature like hold except that it allows you to
answer the parked call from any voice
terminal.
55