Digital Telephone System
1.6.3
Impression Telephone Descriptions
2022S (22-Line LCD Speakerphone)
2101N (Single Line Proprietary Telephone)
1 – 14 Introducing The DSU
1
3
2
ABC
DEF
4
5
6
GHI
JKL
MNO
7
8
9
PRS
TUV
WXY
0
#
OPER
SPKR
T/C
MUTE
HOLD
TAP
ITCM
R
unisyn09.cdr
Figure 1–6: Impression Telephone Images
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2122S (22-Line Speakerphone)
2122X (22-Line Monitor Telephone)
DU32X (32-Button DSS/BLF Console)
IMI66–107
1
2
3
ABC
DEF
4
5
6
GHI
MNO
JKL
7
8
9
PRS
TUV
WXY
0
#
OPER
SPKR
T/C
MUTE
HOLD
TAP
ITCM
unisyn11.cdr
unisyn01.cdr