How to Configure Htek UC8 and UC9 Series

Applies to UC802, UC803, UC804(T/G), UC806(G/T), UC840, UC842, UC860, UC862, UC902(S), UC903, UC912(E/G), UC921, UC923, UC924(E), UC926(E)

Htek UC Series

Important

  • Used phones previously connected to another PBX system need to be reset first. See how to do this below.
  • These devices are supported directly by the vendor. If you need to upgrade the firmware, obtain the appropriate firmware version directly from the device vendor. Then navigate to Phones > Options > Enable Untested / Unsupported Firmwares, and go to Phones > Firmwares to upload and deploy the firmware as required.

Step 1: Identify your Exact Htek UC8 and UC9 Phone Model and MAC Address

Be sure you follow the steps for the right phone model. You can find the model and MAC address on the label at the back of the handset, or by pressing the “Menu or OK > Status” on the phone.  Take a note of the MAC address, you will need this for the configuration.

Step 2: Factory Reset the IP Phone

Htek UC Phones that have an ‘X’ button

  1. Press “*”, “*”, “*” and “x” button and hold it for 10 seconds.
  2. Release the “x” key button.
  3. After restarting, your phone will be successfully reset.

Htek UC Phones without an ‘X’ button

  1. Press “#”, “#”, “#”, then press and hold “*” for 10 seconds.
  2. Release the “*” key button.
  3. After restarting, your phone will be successfully reset.

Step 3: Add The Phone to the Extension

From the admin console in your web client:

  1. Go to “Users” and select the user you want to add a phone for.
  2. Click on the “IP Phone” tab. Click “Configure a phone” to add a phone.
  3. Now select your phone model from the dropdown menu.
  4. Enter the phone’s MAC address without dashes or colons, and click “Add phone”.

Step 4: Router Phone, SBC or LAN?

  1. If 3CX is on the cloud, you must use a router phone or SBC:
  1. If it is not a router phone you need to specify one or an SBC.
  2. If the device is a router phone, you can connect it directly as a router itself.
  1. If 3CX is on premise or self hosted, you have an additional option, you can select “Local LAN/VPN”.
  2. Click “Add Phone” to save the phone configuration for this extension.

Step 5: Connect the Phone

3CX will now create provisioning information for the phone and make these available on the provisioning URL. The phone must connect to this URL to retrieve its configuration information and authentication details. You have the following options:

  1. RPS - Connect the phone to the network within 14 days. If it is already connected, restart it. The phone will be configured automatically and restarted.
  2. PNP - If 3CX is on premise or connected via SBC, you can connect the phone to the LAN and look for it in the PNP dialog (Admin Console > Phones > PNP Phones). Right click and assign it to the extension you configured above.

  1. Alternatively you can login to the phone's webUI and enter the URL manually. You can also use DHCP option 66.

See also

Last Updated

This document was last updated on 19 February 2026

https://www.3cx.com/sip-phones/manually-provision-htek/