User's Guide

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HT81x User Guide

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.

Therearethree(3)methodsforresetting yourunit:

Using the Reset Button

To reset default factory settings using the reset button please follow the steps above:

1. Unplug the Ethernet cable.

2. Locate the reset hole on the back panel of your HT81X.

3. Insert a pin in this hole, and press for about 7 seconds.

4. Take out the pin. All unit settings are restored to factory settings

Using the IVR Command

Reset default factory settings using the IVR prompt:

1. Dial “***” for voice prompt.

2. Enter “99” and wait for “reset” voice prompt.

3. Enter the encoded MAC address (Look below on how to encode MAC address).

4. Wait 15 seconds and device will automatically reboot and restore factory settings.

Encode the MAC Address

1. Locate the MAC address of the device. It is the 12-digit HEX number on the bottom of the unit.

2. Key in the MAC address. Use the following mapping:

Table 7: MAC Address Key Mapping

Key

Mapping

0-9

22 (press the “2” key twice, “A” will show on the LCD)

222