Grandstream Networks HT503 User Manual page 48

NOTE:
1. Factory Reset will be disabled if the "Lock keypad update" is set to "Yes".
2. Please be aware by default the HT503 WAN side HTTP access is disabled. After a factory reset, the
device's web configuration page can be accessed only from its LAN port.
3.
If the HT503 was previously locked by your local service provider, pressing the RESET button will
only restart the unit. The device will not return to factory default settings.
4. Please be aware if the RESET button was pressed and released in less than 7 seconds, the HT503
will only reboot, it won't return to factory default settings.
FIRMWARE VERSION 1.0.6.8
HT503 USER MANUAL
Page 48 of 48