Dialogic M7324 사용자 설명서

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4.  PBX Systems 
36
34
24
19
14
04
08
28
40
33
23
18
13
03
07
27
39
32
22
17
12
02
06
31
21
16
11
01
26
37
35
25
20
15
05
09
29
CALL WAITING
CALL WAITING
Display
Indicators
MWI
CLEAR
LINE
MUTE
XFER
SPKR
PROG
Feature Keys
 
Figure 4.  Siemens ROLMphone 400 
4.2.3.  Programmable Feature Keys  
As illustrated in 
, there are 40 Feature Keys located below the display 
on the ROLMphone 400 telephone. These keys are configured either during 
PBX installation or by the user (using the telephone set or the Dialogic
®
 PBX 
Integration Board). The CLEAR, SPEAKER, MUTE, XFR, and LINE keys 
are assigned during PBX configuration and cannot be user programmed. The 
MAILBOX indicator is programmed on each phone (see 
 above) for Feature Key 01. Feature Keys 
39 and 40 are used for volume control and cannot be programmed either. 
There is an LED indicator associated with each key, except those discussed in 
the following paragraph. The LED indicators are circular and can take on one 
of the six states listed in 
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