How to Configure Patton SN200/SN4141 FXS VoIP Gateways for 3CX

Configure Patton SN200/SN4141 FXS VoIP Gateways for 3CX

This guide is provided as is and no longer updated. Please contact vendor for support on how to connect them to 3CX

Supported Models: Patton SmartNode 200, 4141 FXS

FXS gateways connect internal analogue devices such as fax machines and phones, to register these as respective extensions on your 3CX PBX. These registered extensions can be addressed as limited-functionality phones, as they are connected to analogue devices.

To add this FXS gateway in Voice & Chat you need to have installed the latest Trinity firmware available from Patton.

⚠ Important:

  • After connecting the gateway to your network, Patton recommends using their SmartNode Discovery Tool to help you find its IP address on your network.

Prepare the Patton FXS Gateway

To update the device firmware:

  1. Open a web browser to your FXS gateway web UI, using the IP address retrieved via the SmartNode Discovery Tool.
  2. Log in the device web UI - default username: administrator, password: <empty>.

Upgrade firmware for the Patton FXS Gateway

  1. Expand the menu and go to “System” > “Firmware Upgrade” > “Upgrade”. Select “Browse” to upload the file and click on “Start” to upgrade.

Upgrade firmware for the Patton FXS Gateway

  1. Wait a few minutes for the firmware upgrade to complete.

⚠ Important: Do not turn off the device until the update is complete.

Step 1: Add and Choose Device

Go to “Admin” > “Voice & Chat” > “Add DECT / FXS” in 3CX Admin Console:

  1. Select the “Patton Trinity 8 Port FXS GS (SN4141)” model/device.
  2. Enter the device’s MAC address, found underneath the device.
  3. Press “Next” to select the provisioning method: choose from “Local LAN/VPN" or “Connect via SBC/ router phone” depending on your setup.

Step 2: FXS Line Setup

Now you need to define these device and line-specific options:

  1. “GatewayIP address”: enter the IP address for your Patton FXS device. The gateway is set with this static IP after the configuration is uploaded.
  2. “Gateway SIP Port”: set to 5060.
  3. “Device Subnet Mask”: set the network mask for the device.
  4. “Default IP Route”: enter the default network gateway to be used by the Patton device.
  5. “DNS Server IP Address”: set the DNS server IP to be used by the Patton device.
  6. “Fax Transmission Mode”: select the transmission mode to use, for sending and receiving faxes via a provisioned fax extension on the FXS gateway.

📄 Note: Select T.38 if your VoIP provider supports this or you have a Patton FXO or ISDN configured for T.38, otherwise select “Fax in Audio”. In T.38 mode, the Patton FXS device actively switches to this protocol once the call is established.

  1. “Tone Set Selection”: select the country in which you are using this device. If the country is not listed, inquire with your telco for the tone set used for your line and select a country with this specific tone set.

Step 3: Map Extensions

  1. Select the extension to assign to each respective port of the FXS gateway in sequence, e.g. select 001 for port 1, 002 for port 2, 003 for port 3, etc.
  2. Click “OK” to save your configuration.

📄 Note: To use fax machines connected on the FXS gateway, you need to assign these to respective dedicated fax extensions. See the section below on how to Add Fax Extensions.

Step 4: Provision the Gateway

Open the just created FXS device configuration and click on the “Provisioning URL”. A file will be downloaded on your PC which will be used next:

  1. Open the just created FXS device configuration, click on the “Provisioning URL” and save the generated configuration file, to subsequently upload on the device.

📄 Note: Patton devices accept only filenames with the characters

a-z
,
A-Z
,
0-9
,
. _ -
.

  1. Log in to your Patton FXS device web UI using a web browser - default username: administrator, password: <empty>.
  2. Expand the menu, go to “System” > “Configuration Files” and click on “+”.

Browse to upload the generated configuration file

  1. Click on “Browse” on the pop-up menu, select the generated configuration file to upload and click “OK”.
  2. Without closing the pop-up window, expand the menu and select “Reboot”.
  3. After the device reboots to apply the configuration, verify that the assigned extensions registered on your Patton FXS device are listed in “Admin” > “Phones” in the 3CX Admin Console.

Step 5: Add Fax extension (Optional)

To use fax machines connected on your FXS gateway, you need to create respective fax extensions in Admin Console:

  1. Go to “Admin” > “Advanced” > “Fax” and click on “+Add”.
  2. Set these options for the new fax extension:
  • “FAX Extension Number” - set the extension number.
  • “Fax Extension Authentication ID” - accept default or set your own.
  • “Fax Extension Authentication Password” - accept default or set your own.
  • “Default Caller ID” - optionally set caller ID.
  1. Press “OK” to save the fax extension.

Last Updated

This document was last updated on 7 September 2026

https://www.3cx.com/voip-gateways/patton-sn200-sn4141-fxs/