Grandstream Networks DP722 - Table 13: Keypad Keys Description; Figure 9: DP730 Keys Description

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DP752/DP730/DP722 Administration Guide
Version 1.0.11.4
11.
# / Lock key
Locks keypad against unintentional entries when keep pressing #.
• Press and hold # key for approximately 2 seconds to lock the keys.
Press Unlock softkey and then # to unlock the keys.
12.
Mute key
Activates or deactivates the mute feature.
13.
Hands-free / Speaker key
Switches between handset and hands-free / speaker modes.
14.
Microphone
Picks up audio earpiece and hands-free calls.
Figure 9: DP730 Keys Description
Table 13: Keypad Keys Description
Key
Description
1.
Proximity sensor
The proximity senor can detect and measure gravitational
acceleration, tilt, vibration, altitude changes, and static position.
2.
Earphone
Delivers audio output.
3,4
Volume up / Down Keys
Configure the handset and ringtone volume.
5.
PTT Key
PTT (Push-to-Talk) button, to initiate PTT call.