AT&T DEFINITY 2500 Instruction Manual page 47

CHAPTER
2. DESCRIPflON
.
Nine
feature/display buttons (lower
lEft
quadrant)
Each button has
a
status light. The
top 2
buttons in this group can be assigned by
the
System Manager
lo
leatures according
to
the
needs
of lhe
user. The other 7
buttons can
be
assigned
by the
System Manager
as
teature buitons toa
the
alphanumeric display.
.
Twent-two
f€ature
buttons wi$rout ligltts (right
side)
These butlons may be
assigngd
to
fealures
nol
r€quiring light leedback. The
11
dual-func,tion
buttons in the
19ft
column provide calculator and personalized ringing
control when the Calculato./Select Ring button js pressed,
TO SET PERSONAUZED RING
t.
Press
lffiGEl
to enter ring-setection mode.
2.
Press
@ once
ior
every ring you want to
hear, cycling through all eight
Es
often as you wish. Stop after hearing chosen ring.
3- press
lEilf,
zs"ro
EJ
to select the last-ptayed ring.
An optional data servic€ unit (DSU)
is
available
for
use with this
voice terminal
to
support
data
leatures. The
DSU
has a seff-test button and light.
This voice terminal does not support a
headset,
a
function key module, or a call
coverage
module.
2-3/.