Grandstream Networks WP810 User Manual page 13

The following table describe the WP822 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 Hands-free / Speaker key
8 Off-hook / Dial key
9 Alphanumeric Keypad
10 * / Mute key
11 LED indicator
12 3.5 mm headset jack
13 Color LCD Screen
14 Softkeys
18 Contacts
15 Menu/OK key
16 On-hook or Power key
17 # / Lock key
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.
Activates or deactivates the mute feature when pressing on * in idle
screen.
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.
1dual-color LED indicator indicating power, call, battery, message
waiting...
Phone connector for the headphones/headsets.
1.8-inch (128×160) color LCD
Correspond to functions displayed on the LCD. These functions
change depending on the current context.
Access to contacts list.
Displays the main menu
Selects the option chosen by the cursor or enters the main menu
from the home screen.
Does one of the following:
● When pressing #: Redials the last dialed number, for this to
work the Key As Send option under Account settings => Call
settings should be set to #