How to factory reset a Grandstream HT-70x Analog Telephone Adapter (ATA)

Do not perform this procedure unless advised by your IPFINITY technical support advisor. This procedure will complete erase and reset your ATA. If the ATA has been provisioned by IPFINITY it will download its provisioning over the Internet and reprogram itself. This process can take up to 10-15 minutes once you have performed the factory reset. During this period, the ATA will be unusable for making or receiving calls so do not perform this process unless you are able to be without phone service for the duration.

There are two methods for resetting your unit:

Method 1: Reset Button

Reset default factory settings following these four (4) steps:

  1. Unplug the Ethernet cable.

  2. Locate a needle-sized hole on the back panel of the gateway unit next to the power connection.

  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.

Method 2: Touch tone

Using a phone connected to the ATA, pick up the handset and follow the below instructions. If you make a mistake, hang up, wait five seconds, and then start again from the beginning.

  1. Dial “* * *” (press the star key thrice) for the voice prompt.

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

  3. Now enter the encoded MAC address (see below on how to encode the MAC address).

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

Encoding the MAC Address:

  1. Contact IPFINITY support for the MAC address of your device. It will be a 12 character code consisting of digits 0-9 and letters A-F, looking like this, for example: 000b8200e395 (there is no difference between upper and lower case letters).

  2. Key in the MAC address on your phone's keypad as follows:
    For digits 0-9, simply press the corresponding digit on your phone's keypad.
    For letters A-F, each letter must be replaced with two or more digit presses. Here is how to enter letters A-F:

A:  22 (press the “2” key twice)

B:  222

C:  2222

D:  33 (press the “3” key twice)

E:  333

F:  3333

For example: if the MAC address is 000b8200e395, it should be keyed in as
“0-0-0-222-8-2-0-0-333-3-9-5” (dashes are only shown for clarity, the letters B and E are encoded into the digit sequences that shown in bold for clarity).

Before entering the MAC address, it may help you to write down your encoded MAC sequence.

Should you make a mistake while typing the MAC address, hang up and start over from the beginning. If you get it wrong the device will not reset.

After entering the the MAC address you may hear a voice acknowledgment and then the line will go dead. Let the device finish its reset and reprovisioning process without interrupting the power or internet connections. The process can take up to 10-15 minutes depending on your Internet speed.

Should you have any questions, please. contact IPFINITY Support for help.



Grandstream's technical document:


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