Grandstream Networks DP720 Administration Manual page 26

loopback mode.
-
Select this option to turn off LCD. Press any button to turn on LCD.
-
Select
"Next" (left softkey) to display white screen. Continue pressing the left
softkey to view all remaining screens (black, blue, red, and green) and
then exit. End the test early by pressing the right softkey.
-
Displays the RSSI and battery voltage information.
 Status
Display the handset status (Firmware, Model, Hardware, IPEI ...)

Call Settings Do Not Disturb
Enable/disable do not disturb mode on the phone.

Call Waiting
Configure call waiting feature.

Call Forward
Configure call forward feature.

Speed Dial
Assign the numbers for speed dial.

Outgoing Default Line
Select outgoing default line.

Auto Answer
Enable/disable auto answer feature.

Line Status
Display the line status.
LCD ON / OFF
LCD Diagnostic
this option to enter
System Monitoring
DP750/DP720 Administration Guide
LCD Diagnostic mode. Press
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