Grandstream Networks WP810 User Manual page 11

The following table describe the WP810 keypad keys.
Reference Key
1 Proximity sensor
2 Earphone
3,4 Volume up / Down Keys
5 PTT Key
6 Arrow key combination (Up, Down, Left, Right)
7 Off-hook / Dial key
8 Alphanumeric Keypad
9 * / Mute key
10 Hands-free / Speaker key
11 LED indicator
Figure 6: WP810 Description
Description
The proximity senor can detect and measure gravitational
acceleration, tilt, vibration, altitude changes, and static position.
Delivers audio output.
Configure the handset and ringtone volume.
PTT (Push-to-Talk) button, to initiate PTT call.
Allows navigation of the cursor through the displayed menu options.
Enters dialing mode, or dials number entered.
Provides the digits, letters, and special characters in context-
sensitive applications. For + sign, press and hold key 0.
Keep pressing on * in idle screen to mute/unmute the ringtone.
Activates or deactivates the mute feature when pressing on * in idle
screen.
1dual-color LED indicator indicating power, call, battery, message
waiting...