MUTE
SHIFT
SPEAKER
INTERCOM
TRNS/CNF
TAP
HOLD
OPER
TUV
PRS
WXY
DEF
ABC
QZ
MNO
JKL
GHI
#
Speaker
Button
Dialpad
Handset
Telephone
Speaker
Intercom Button
Lights for
Programmable
Buttons
. DSS/BLF
. Features
. Lines
Microphone Opening
Typical Impact SCS Speakerphone Controls And Indicators
DSU II Digital Telephone System
IMI66–132
1–17d Introducing The DSU II Digital Telephone System
Содержание DSU II
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