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Chapter 3:  AT Commands Reference
 December  31, 2007
AT Commands Reference Manual
3-321
+CDEV, Change Display Indication
When text on the display changes and the <disp> parameter of the +CMER command is set to 1, 
the +CDEV indication is sent to the DTE.
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+CDEV: <x>,<y>,<text>,<highlighted>
+CIEV, Indicator Event Reporting
When a G24 indication is changed and the <ind> parameter of the +CMER command is set to 1, 
the +CIEV indication is sent to the DTE.
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+CIEV: <ind>,<value>
The following table shows the +CIEV parameters.
Table 3-211: +CDEV Parameters
<Parameter>
Description
<x>
Indicates the x coordinate of the text.
<y>
Indicates the x coordinate of the text.
<text>
Is the new value of the text element.
< highlighted>
indicates whether the line has a backlight
0 - not highlighted
1 - highlighted
Table 3-212: +CIEV Parameters
<ind>
Description
<value> Range
Explanation
0
Battery indicator
0-3
0
Low battery
3
Full battery
1
Signal bars
0-5
0
No signal
1
Low signal strength
5
High signal strength
2
Service availability
0/1
0
Service available
1
Service not available
3
Unread message 
indication
0/1
0
No unread messages
1
Unread messages exist
4
Call in progress
0/1
0
Call not in progress
1
Call in progress
5
Roaming indicator
0/1
0
Not roaming
1
Roaming