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Grandstream HT801 ATA Setup

Updated: 3/26/2025 5:37 AM

The Grandstream HT802 is an Analog Telephone Adapter (ATA) that allows analogue phones to be used with Vonage. A Factory Reset is needed when used with a prior service or moving to a different extension.

NOTES:

  • ATAs are not suitable for critical safety devices like fire alarms or elevators.
  • Device Setup Disclaimer: The setup instructions provided are based on best efforts. If you encounter any issues or need further assistance, we recommend contacting the device manufacturer directly. 
  • Connecting a fax machine to send and receive faxes is not supported. If you experience any issues with your fax machine, contact the manufacturer of your device for assistance with settings to work with VoIP. 
  • It is recommended that you set your fax machine speed to either 14.4K or 9600 Baud. Faxing requires the Vonage ATA to have a good quality network connection with sufficient bandwidth which includes no packet loss, low latency, and low jitter.

Add a Device/Phone to Your Account

Before you set up your phone, it must be added to your account if purchased through a third party.

 
Add Device/Phone to AccountDevices purchased from Vonage are already added to the account, but not set up or assigned to any specific extension. See the next section, Assign Extension to Device/Phone, to complete the setup.  Devices added to the account can either be:
  • Left unassigned for future use or as a shared device dedicated to hoteling/used by multiple users at separate times
  • Assigned to a specific user’s extension to make or receive calls.
Add Devices to Account that Were Purchased from a Third Party
  1. Sign in to the Admin Portal.
  2. Go to Phone System, then Devices.
  3. Click the Add Device button and complete the fields:
    1. Enter the Device Name. 
    2. Select the Location of the new device (if you have multiple locations).
    3. Select the Emergency Services Location. (Specify the physical address of the device to ensure emergency personnel are dispatched to the correct location.)
    4. Select the Make of the new device.    
      Select the Model of the new device (optional). 
    5. Enter the MAC Address (should be 12 hexadecimal digits (0-9,A-F)).
  4. Click the Save button in the upper right corner of the screen.
Now the device is ready for hoteling/hot-desking use or for assignment to a specific Extension

NOTE: After saving the new device, it appears in the table on the Devices tab.  The Assignment is listed as Unassigned until an extension is set to the device.
Assign Extension to Device/Phone
  1. Sign in to the Admin Portal.
  2. Go to Phone System, then Devices.
  3. Click on the device you want to configure; the Edit Device page opens.
  4. Go to the Primary Extension dropdown and select an extension in the list.
  5. Review and confirm that the device name, location, and emergency services location are all correct.
  6. Scroll down to the Phone Configuration section and click the Refresh button to reset the device profile URL time.
  7. Click the Save button in the upper right corner of the screen.
Factory Reset the Device
  1. Plug in and power on the ATA device.
  2. Locate the indented RESET button between the power and ethernet port.
  3. Use a paper clip or toothpick to press and hold the reset button for 10 seconds. Do not release the button until all 4 lights on the top of the ATA flash for 1-2 seconds.
Reset the Device from Web UI
This is an alternative method to reset the device and should only be used if the reset button does not work.
 
  1. Identify the ATA's IP address using one of these methods:
    • Access the DHCP client list on the user's router.
    • Download and run a network scanning tool, such as SoftPerfect Network Scanner on the user's PC.
    • Plug in an analogue phone to phone Port 1 of the ATA and press *** (three stars). After hearing the greeting, press 02 to hear the IP address being recited.
  2. Open a browser on a computer connected to your network.
  3. Enter the phone's IP address into the address bar of your browser to access the ATA's login page.
  4. Log in to the phone's web interface using the default password: admin 

    NOTE: Once your device is set up, your Vonage Business account number becomes the new password.
HT082 Password
 
  1. Click the Basic Settings tab at the top of the screen.
  2. Locate Reset Type at the bottom of the screen and select Full Reset from the drop-down menu.
  3. Click Reset, which will take 2-3 minutes to complete.
Troubleshoot Issues
One-Way or No-Way Audio

Disable SIP ALG and the SPI firewall.

ATA Not Powering On

Check that the ATA is plugged in and powered on by an AC power adapter.

Unable to Make Outbound Calls

Disable SIP ALG and the SPI firewall.

Calls Drop After a Few Seconds or Minutes

Disable SIP ALG and the SPI firewall.

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