User Guide

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GXP21XX User Guide
Version 1.0.9.26
RESTORE FACTORY DEFAULT SETTINGS
Warning:
Restoring the Factory Default Settings will delete all configuration information on the phone. Please backup
or print all the settings before you restore to the factory default settings. Grandstream is not responsible for
restoring lost parameters and cannot connect your device to your VoIP service provider.
There are two methods to perform factory reset on GXP21XX IP phone series which are described below.
Restore to factory using hard keys
In order to perform hard reset of the phone using keypad buttons please follow below steps:
1. Power cycle the phone.
1. Wait till you see “booting”.
2. When phone is “booting”, press KEY 1 + Key 9 immediately and hold it until LCD factory reset
message or if a password is required.
3. If it is required, enter the correct admin password to factory reset.
Note: The admin password will be not required to perform factory reset when the option “Configuration
via Keypad menu” under web UI  Maintenance  Security is set to “Unrestricted”, otherwise if it’s set
to “Basic Settings Only”, or “Constraint Mode”, or “Locked Mode”, the admin password will be requested.
If the password input is correct, phone will perform factory reset; if not, the phone will reboot without
factory reset.
4. Factory reset is complete.
Restore to factory using LCD menu
Please follow the instructions below to reset the phone:
• Press MENU button to bring up the keypad configuration menu.
• Select "System" and enter.
• Select "Operations - Factory Reset".
• A warning window will pop out to make sure a reset is requested and confirmed.
Press the "Yes" Softkey to confirm and the phone will reboot. To cancel the Reset, press “No” Softkey
instead.