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Grandstream Networks, Inc. GXP1100/1105 User Manual Page 34 of 34
Firmware version: 1.0.1.110 Last Updated: 01/2012
Restore Factory Default Setting
WARNING: Restoring the Factory Default Setting will delete all configuration information of the phone.
Please backup or print all the settings before you restoring factory default settings. We are not responsible
for restoring lost parameters and cannot connect your device to your VoIP service provider.
INSTRUCTIONS FOR RESTORATION:
Step 1: Press “***” to enter the IVR menu. Input “99” to for factory reset.
Step 2: Enter the MAC address printed on the bottom of the sticker. Please use the following mapping:
0-9: 0-9
A: 22 (press the “2” key twice, “A” will show on the LCD)
B: 222
C: 2222
D: 33 (press the “3” key twice, “D” will show on the LCD)
E: 333
F: 3333
Example: if the MAC address is 000b
8200e395, it should be key in as “0002228200333395”.
NOTE:
If there are digits like “22” in the MAC, you need to wait for 4 seconds to continue to key in another “2”.
Step 3: Once the MAC address is correctly input, the phone will reboot. Otherwise, it will announce
“Invalid Entry” and exit to the main menu.