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ISDN 8520T Voice/Data Terminal
ISDN 8528T VOICE TERMINAL
1
23
456
78
9
ABC DEF
MNOJKLGHI
PQRS TUV WXYZ
*
O
#
Oper
Dial pad
Handset
Hold button
Redial button
Exit button
Drop button
Volume
Mute Redial
Speaker Exit
Conf Drop
Transfer Hold
a
b
c
Message light
Conference button
Transfer button
Telephone
d
e
h
i
j
k
number
card
Volume control button
Mute button
Speaker button
Message
ISDN 8528T
Display
NextPrevMenu Dir
f
g
j
m
n
o
p
q
r
s
v
w
x
y
t
u
z
A
B
4 Display
4 Softkeys
28 Call
appearance/
feature buttons
control buttons
FIGURE 3-21. The ISDN 8528T Voice Terminal
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