cajs110
LCD Display
Interactive Buttons
Speaker
Mute Button
T/C Button
SPKR Button
Message
Waiting Light
Hold Button
TAP Button
ITCM Button
Feature Buttons,
Line Buttons, and
DSS Buttons
Volume Control
Microphone Opening
1
2
4
7
0
8
9
5
6
3
#
ABC
GHI
PRS
OPER
TUV
WXY
JKL
MNO
DEF
SPKR
HOLD
TAP
ITCM
T/C
MUTE
Figure 1–10:
Station Controls And Indicators On
Impression Telephones
Digital Telephone System IMI66–107
1 – 18 Introducing The DSU
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