Figure 2: Keypad Gui Flow - Grandstream Networks GXP21XX User Manual

Press Menu button to choose the menu item
Press "←" or follow the soft keys to return to the main menu
Press Menu button to display the configuration selections:
Config
Press Menu to display the factory function items including
Factory Functions
Press '←' to return the main menu
To select IP mode (DHCP/Static IP/PPPoE); to setup PPPoE, IP address,
Network
Netmask, Gateway address and DNS Server 1 and DNS Server 2.
To enable/disable and configure Forward All, Forward Busy, Forward No Answer,
Call Features
No Answer Timeout, press Call Features and select the Account x to set the
forward call features on this account.
Select on Reboot and press Menu button to reboot the device.
Reboot
Exit from this menu
Exit

Figure 2: Keypad GUI Flow

Grandstream Networks, Inc.
Dutch which are built in the phone. Users could select Automatic for
local language based on IP location if available. Also, the phone will
download secondary language if available.

Time Settings
Users can set the date and time on the phone.

SIP
To change SIP server settings for SIP account (SIP Proxy, Outbound
Proxy, SIP User ID, SIP Auth ID, SIP Password, SIP Transport and
Audio).

Upgrade
To configure the firmware server and Config server for upgrading or
provisioning the phone.

Factory Reset
Key in the physical/MAC address on the back of the phone.
Press OK softkey to reset to FACTORY DEFAULT setting. Do not use
Factory Reset unless you want to restore factory settings.

Layer 2 QoS
Configure 802.1Q/VLAN Tag and priority value.

Audio Loopback
Speak into the handset. If you hear your voice in the handset, your audio
is working fine. Press Menu button to exit the mode.

Diagnostic Mode
All LEDs will light up.
Press any key on the keypad, to display the button name in the LCD. Lift
and put back the handset or press Menu button to exit the diagnostic
mode.
GXP21xx User Manual
Firmware version: 1.0.1.110
Page 24 of 48
Last Updated: 01/2012