Equisys technical notes

Technical guidance, explanations and fixes for our products

HOWTO: Configuring a Brooktrout SR140 and Dialogic Media Gateway 1000 in Zetafax



ID: ZTN1731

This Zetafax technical note applies to:

  • Zetafax 2008 and later


This document will take you through the steps to get a basic setup of Fax over IP in Zetafax using the Brooktrout SR140 and Dialogic Media Gateway (the 1000 analog model specifically in this document). 

More information


Assuming that this is a fresh Zetafax installation prior to setting up FoIP:

  • SR140 license (to be activated with Dialogic)
  • Zetafax FoIP connector license
  • Dialogic Media Gateway 1000 (known as DMG from here onwards)
  • Analog lines


The configuration procedure will consist of the following steps:

  1. Configure the DMG
  2. Configure Zetafax to talk to DMG
  3. Activate the SR140 license with Dialogic
  4. Install the SR140 patch
  5. Configure SR140 settings
  6. Add the Zetafax FoIP connector add-on license in Zetafax Configuration
  7. Configure Zetafax Server


Configure the DMG

The DMG is basically the gateway where PSTN is converted to IP and vice versa.  While the DMG offers many configurable options, this document will only cover a basic configuration i.e. the ability to send and receive faxes.

Full documentation for the DMG can be found here - http://www.dialogic.com/manuals/mediagateway/default.htm

The concept of configuring the DMG falls into two main points:

  1. IP settings
  2. Routing calls via the gateway

The DMG must be reachable by the Zetafax Server over the network.  So therefore you must first configure the IP settings.  You can access the configuration screen of the DMG via Web Interface or Serial connection.  This document will only cover the web interface.

  • The default browser URL of the DMG is with username: admin and password: IpodAdmin
  • Once the configuration screen has loaded up, you can change IP settings by clicking on IP under the Configuration section.

FIG 1 - IP settings screen

  • BOOTP and SNTP settings are optional.
  • Click on Submit and then you will need to restart the DMG.  Click on Restart under System.


This section is all about defining how the DMG should respond to calls when coming through via PSTN and IP.

Inbound faxes

In a Zetafax environment we look at inbound faxes as being PSTN > IP.

We need to tell the DMG to take a PSTN call and forward it to the Zetafax Server machine, and to talk on a specific protocol (SIP or H.323) so that SR140 can understand it.

When you see TDM anywhere in the configuration, this is referring to the PSTN signal.

Inbound faxing consists of two parts - Inbound TDM Rules and TDM Trunk Groups.

Inbound TDM Rules - this is the rule which defines where TDM calls are routed.  They are routed to a trunk group.

TDM Trunk Groups - you can group different channels together in this section.  For a basic setup you can leave this as the default (set to *), which groups all Analogue channels into one trunk group.

Once you have selected a trunk group for an Inbound TDM Rule, you must define an outbound route.  This route will be directed over VoIP to the SR140 (Zetafax Server) machine. Before you set up the Outbound Route, you must set up a VoIP Host Group.  This is simply the VoIP destination i.e. Zetafax Server.

Step 1 - Click on VoIP Host Groups at the top.


You only need one host group as there is only one destination.


Step 2 - Enter the IP of the Zetafax Server into the Host Summary box. Be sure to click on Submit otherwise the Host Summary will remain red and will not function.


Step 3 - Click on Inbound TDM Rules at the top, and scroll down to the Outbound Routes section.


Make sure VoIP is the outbound destination and the host group you had setup is selected.  Apply the configuration.

Inbound faxing should now be configured.

Outbound faxes

These are defined as IP > PSTN.

This time we need to configure an Inbound VoIP Rule.

Step 1 - Make sure one rule is enabled.

  • You can specify the Zetafax Server's IP under "Originating VoIP Host Address" if you only want to allow IP calls from this address for this rule.  However leaving at * will still work.

Step 2 - Configure outbound route.

  • Set the outbound destination to TDM and Trunk group to the one you created earlier.
  • Apply the settings.  Now the DMG should be setup to be used with Zetafax.

Activate the SR140 license with Dialogic

Once you have acquired a Brooktrout License for the SR140 you will need to activate the license in the Brooktrout License Manager (This is done on the Zetafax Server machine).

  • Click on License > Activate License
  • You will then be presented with three different options to activate the license.


  • Once the License has been successfully verified it will appear in the Brooktrout License Manager as shown below.


Be aware that an SR140 license is locked to the machine.  Once this has been done, you cannot activate the same license on another machine.  You can contact Dialogic for assistance with migrating a license if you need to.

Install the SR140 patch for Zetafax

SR140 support was introduced in Zetafax after the release of v2008/v12, and therefore a patch must be installed in order to configure it.

Installation steps are documented in this technical note - http://www.equisys.com/technotes/ztn1713.htm

Configure SR140

Open the Brooktrout Configuration tool from the start menu. You should see on the left menu a section "IP Call Control Modules", if you expand this you will see the FOIP protocol you are using, in FIG 5 it shows the SIP protocol. If you click on protocol (SIP) you will be presented with a menu on the right side. In here you need to enter the following information:

  • SIP Contact: This is the IP address of the Zetafax Server.
  • SIP default Gateway: This is the IP address of the Media Gateway.
  • Enter the SIP UDP port number as 5060.
  • Save and Apply the settings.



Add the Zetafax FoIP connector add-on license in Zetafax Configuration

  • Open Zetafax Configuration from the Start menu.
  • Right click on Licensing and Registration and follow the wizard to add the license.  Note that that this is only done once per Zetafax Server.

Add the SR140 device in Zetafax Configuration

  • Open Zetafax Configuration from the Start menu.
  • Right click on Devices and select Add.
  • Add a "Brooktrout Fax Board".
  • Select an SR140 device.
  • You will need to specify the Gateway IP.  This is the IP of the DMG.
  • Save the settings and finish the wizard.

The system is now configured.  Start Zetafax Server either from the Start menu to run as an application or from Services.


Last updated: 17/04/2009 (JW/MW)

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