Grandstream Networks WP820 - Table 4: WP820 Description; Figure 4: WP820 Description

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WP820 Administration Guide
Version 1.0.1.15
Figure 4: WP820 Description
The following table describe the WP820 keypad keys.
Table 4: WP820 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.
6.
Hands-free / Speaker
key
Switches between Handset and Hands-free / Speaker modes.