Configuring the Mediatrix Unit with Microsoft Communication Office Server

This document outlines the configuration steps required for deploying Mediatrix units running the DGW firmware in a SIP environment with the Microsoft Communication Server system (OCS).

The following diagram is a typical scenario where many analog endpoints are connected to an OCS via a Mediatrix 4100 series. Connections between the Mediatrix unit and the OCS are done via the SIP protocol.



  • Local network configuration (default router, DNS server, etc.);
  • SIP username(s) for the extensions on the 4100 gateway. These need to be obtained from your OCS administrator;
  • IP address of the OCS Mediation Server;
  • IP address of the Mediatrix gateway;
  • The OCS domain is properly configured;
  • An OCS Mediation Server is properly installed and configured;
  • The extensions to be configured are available.


Configuring the Default Servers - OCS Mediation Server

  1. Go to SIP/Servers.
  2. In the Registrar Host field, indicate the server IP address and port of the OCS Mediation Server in the format "IPaddress:Port"
  3. In the Proxy Host field, indicate the server IP address and port of the OCS Mediation Server in the format "IPaddress:Port"
  4. Leave the Outbound Proxy Host field empty.
    Note: Setting the address to or leaving the field empty disables the outbound proxy host.
  5. Click Apply.
  6. Click restart required services located at the top of the page.


Registering Endpoints - OCS Mediation Server

  1. Go to SIP/Registrations.
  2. In the Endpoints Registration table:
    1. Locate the desired port number;
    2. In the User Name field, type the extension number of that port.
    3. Set the Register field to Disable.
  3. Repeat step 2 for each port that needs to be configured.
  4. Click Apply.


Configuring Transport Protocols

  1. Go to SIP/Transport.
  2. In the Protocol Configuration table, set:
    1. UDP to Disable.
    2. TCP to Enable.
    3. TLS to Disable.
  3. Click Apply.


Enabling Default Codecs

  1. Go to Media/Codecs.
  2. From the Select Codec Bank, choose if you want the G.722 , the G.723.1, G.726 or G.729 codec.
    Note: All Codec Banks include the T.38, the Clear Mode, the Clear Channel, and the X-CCD codecs.
  3. In the Codec table, select the desired codecs and Enable / Disable them.
    Note: Codecs that appear in Red are not part of the selected codec Bank, thus they can be disabled without a problem.
  4. Click for Advanced codec settings.
    Note: When enabling two codecs or more, the priority order can be modified by selecting the advanced options.
  5. Click Apply.


Online Help

If you are not familiar with the meaning of the fields and buttons, click Show Help, located at the upper right corner of the Web page. When activated, the fields and buttons that offer online help will change to green and if you hover over them, the description will bedisplayed.


DGW Documentation

Mediatrix devices are supplied with an exhaustive set of documentation.

Mediatrix user documentation is available on the Media5 Documentation Portal.

Several types of documents were created to clearly present the information you are looking for. Our documentation includes:
  • Release notes: Generated at each GA release, this document includes the known and solved issues of the software. It also outlines the changes and the new features the release includes.
  • Configuration notes: These documents are created to facilitate the configuration of a specific use case. They address a configuration aspect we consider that most users will need to perform. However, in some cases, a configuration note is created after receiving a question from a customer. They provide standard step-by-step procedures detailing the values of the parameters to use. They provide a means of validation and present some conceptual information. The configuration notes are specifically created to guide the user through an aspect of the configuration.
  • Technical bulletins: These documents are created to facilitate the configuration of a specific technical action, such as performing a firmware upgrade.
  • Hardware installation guide: They provide the detailed procedure on how to safely and adequately install the unit. It provides information on card installation, cable connections, and how to access for the first time the Management interface.
  • User guide: The user guide explains how to customise to your needs the configuration of the unit. Although this document is task oriented, it provides conceptual information to help the user understand the purpose and impact of each task. The User Guide will provide information such as where and how TR-069 can be configured in the Management Interface, how to set firewalls, or how to use the CLI to configure parameters that are not available in the Management Interface.
  • Reference guide: This exhaustive document has been created for advanced users. It includes a description of all the parameters used by all the services of the Mediatrix units. You will find, for example, scripts to configure a specific parameter, notification messages sent by a service, or an action description used to create Rulesets. This document includes reference information such as a dictionary, and it does not include any step-by-step procedures.


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