How to Configure a Welltech WellGate 2424s FXS Gateway
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Configuring a Welltech WellGate 2424s FXS Gateway

This guide shows you how to configure the Welltech WellGate 2424s FXS VoIP gateway with 3CX Phone System. FXS VoIP gateways are used to connect your analog phones to an IP PBX. The first step to configuring the Welltech gateway is to access your DHCP server and create a reservation for the Welltech gateway. You need to do this reservation using the WAN MAC address of the device. You can find this under the device, with the label WAN ID. The LAN interface is only used for management purposes and registrations/provisioning will not work if you remain connected to this port.

Prepare WellGate 2424s and 3CX Phone System

There are a two important preparation tasks you need complete before configuring your WellGate with 3CX Phone System.

The first step is to download and update the firmware for your WellGate 2424sTo update the firmware: 

  1. Firstly make sure that your Welltech device is factory reset. If not, to reset the WellGate 2424s press and hold the “Reset” button for 5 seconds.
  2. Connect the Welltech LAN port to a PC and configure your PC Network card to a static IP Address of
  3. Open a browser at and login to the gateway using the default username: root and password: root.
  4. Click on “Maintenance” node and choose “Firmware Update” tab, using the browse button, choose the firmware you downloaded, and then press “import”.2015-04-30 10_05_46-WG2424s Uesr Guide Release 2.09a.pdf - Adobe Acrobat Reader DC

It takes 2 or 3 minutes to complete the update. Don’t turn off the power until the update is complete

After the device has updated and restarted you can continue with the second preparation task, which is to update the template for your Welltech WellGate 2424s on 3CX Phone system.

  1. In 3CX Management Console, select “Updates” > “VoIP Gateway Template Updates”, scroll down till you see the updates for “Welltech Wellgate 2424s”
  2. There may be a “new” update for your 2424s, or if you have updated in the past, it may say “out of date“, Select the update for the 2424s and click “Download Selected”. After a few seconds the status will turn green and say “up to date

2015-04-30 09_17_50-3CX Phone System Management Console v12.5.39117.982

You can now proceed to configure your WellGate using the steps bellow.

 Step 1: Creating Welltech WellGate 2424s port

  1. Log in to 3CX Management Console and click on “VoIP/PSTN Gateways”.
  2. Select “Add Gateway”, enter a name, for example, “Patton_2424s” and select “Welltech” from the drop down list and select 2424s and press “Next”.
  3. Enter the Welltech’s WAN MAC Address and press “Next”.
  4. In the “IP address” field put the IP address which you reserved for the Welltech device on the DHCP Server and press Next”
  5. In the “Set Gateway Extensions” tab, choose the extensions which should be connected via FXS ports and press “Next”
  6. In the file generation page press “Generate config file”. A configuration file will be generated, choose where to save it. The recommended place to save the file is in the provisioning directory (Default: “C:\ProgramData\3CX\Data\Http\Interface\provisioning\PROVSUBDIR\).

Step 2: Provisioning the Welltech Wellgate 2424s

If you performed a firmware update you will not have to factory reset again, and can continue from point 2.

  1. Make sure that your Welltech device has been factory reset. If not, to reset the Wellgate 2424s press and hold the “Reset” button for 5 seconds.
  2. Connect the Welltech LAN port to a PC and configure your PC Network card to a static IP Address of
  3. Open a browser at and login to the gateway using the default username: root and password: root.png;base6436127fee47312065
  4. Navigate to the “Device Setting” > “Network” tab. Change  “Network Type” to “DHCP” and “DNS Server Mode” to “Auto” as outlined above. Press “Apply”
  5. Reboot the gateway.
  6. Unplug the network cable from the LAN Port and plug the gateway to your company network via the WAN port. The WAN port is the port that will be used for registration, provisioning and configuration.
  7. Click on “Device Setting” > “Provisioning” tab and configure the following:
    • Provisioning Type – “HTTP”
    • HTTP Config URL – http://PBX_IP:PBX_HTTP_PORT/provisioning/PROVSUBDIR/ (you can use Local Provisioning URL from “Settings” > “Phone Provisioning” tab)
    • Refresh Interval (minute) – ‘14400’
  8. Click on “Maintenance” node and choose “Reboot”. Press “Apply” to confirm.
  9. On startup, the configuration file will be downloaded from the 3CX Phone System Provisioning server and your device will be ready to make and receive calls. You should see the Extensions turn Green (REGISTERED) in the “Extension Status” tab of the 3CX Management Console.

Additional configuration

Receive T.38 FAX messages on the FXS port

To receive the T.38 FAX on one (or more) FXS port(s) you need to prepare the following configuration:

  1. Log in to 3CX Management Console and click on “FAX Machines”.
  2. Press “Add Fax Extension” and add new FAX extension(s) (in our example we will add 2 new FAX extensions).ATA-172plus-fax ports
  3. Go to “VoIP/PSTN Gateways” and repeat the steps described in the ‘Step 1 : Creating Welltech WellGate 2424s port’ until point 5.png;base64af2328ff925bc351
  4. When you choose the extensions, which will be connected via FXS ports, choose the added FAX extensions and assign them to the FXS ports (in our example ports 1 and 2).
  • After completing the wizard you will need to re-generate a config file and provision (or re-provision) the WellGate 2424s. To do this just repeat the steps from point 6 till 9 of step 2 “Provisioning the Welltech Wellgate 2424s”
  • When GW restarts you need to connect to the Web interface of Welltech 2424s gateway and navigate to “FXS Settings”. Here you should see already provisioned FAX extensions.


  • Edit them one by one and enable T.38 from ‘FAX Relay’ drop-down list.


After applying the configuration you will be able to forward incoming FAX calls (coming from PSTN GW or VoIP provider) to chosen FAX extension(s) (in our example 880 and 881 were used) and receive the T.38 FAX messages on the FAX machines connected to chosen FXS port(s), for example, ports 1 and 2.

Find a full configuration guide on Configuring Fax Server with 3CX Phone System.

Hear 3CX Hold music on the FXS analog phones

To hear the 3CX Hold music on the FXS analog phones you need to change the Extension Capabilities of all extensions which are connected to WellGate 2424s FXS gateway.

  1. Log in to 3CX Management Console and click on “Extensions”.
  2. Edit all mentioned extensions (you can ‘multi-select” them).png;base646c11790fe93079b2
  3. Navigate to “Other” tab and configure the following:
  • PBX Delivers Audio – disabled;
  • Supports Re-Invite – disabled;
  • Support ‘Replaces’ header – disabled.

After applying this configuration the Hold music of 3CX Phone System will be played for all FXS analog phones.

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