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Installation of MultiTech MT9234-MU-CDC-XR Modem Driver

Thank you for purchasing the MultiTech MT9234 Fax Modem from provides a custom digitally signed automated installer for the MultiTech MT9234-MU-CDC-XR fax modem.  The installer is compatible with Windows 10, Windows 2012 and 2008 Server, Windows 8.x and Windows 7.  If you are using an older operating system, you must follow the manual installation methods provided with your fax modem.

Install using Driver Wizard for Microsoft Windows® 10, 8.x, 7, Server 2012/2008.

1. Download our custom driver package.

The download link is included within your completed order e-mail from Look for the link “Modem Installer for Windows 10/8/7/Vista” or for the filename in your order e-mail.

If you have a account, you can also access your download links by logging into your account.

2. Locate the driver file you downloaded and extract the contents to a folder. The file you downloaded is in ZIP (Compressed) format. You must Unzip/Extract this file before you can install the modem driver.  Right-click the file you downloaded, select Extract All. Use the default or choose a new destination folder.  Click here for more information on using Unzip/Extract in Microsoft Windows.

After the unzip/extraction, the destination folder will include 2 files:

x64-MultiTech-MT9234MU-CDC-XR-64BIT.EXE      and


To start the installation, Double-click on the appropriate modem installer file listed above for your specific installation of Windows. (x86 for 32-bit versions of Windows and x64 for 64-bit versions of Windows)

WINDOWS 10/8 NOTE: To determine which version of Windows you are using: Right-click the Start icon. Click System. Look for 32-bit or 64-bit to the right of the “System type” heading. Use the installer file x64-MultiTech-MT9234MU-CDC-XR-64BIT.EXE for 64-bit versions and x86-MultiTech-MT9234MU-CDC-XR.EXE for 32-bit versions.

3. Click Next to start the installation wizard. The installation wizard will prompt you when the MultiTech MT9234 fax modem driver is successfully installed.  The driver can be installed with or without the fax modem connected to the USB port.

4. Exit the driver installation software by clicking Finish. Now allow the computer to restart by Rebooting the computer.

5. If the fax modem is not already connected to a USB port, insert the MultiTech MT9234 fax modem into a USB port.  If you are using Windows 8, go to the desktop screen and insert the fax modem.

6. Start the FaxTalk software.  Click on Tools, Options. Select Modem from the left panel.

7. Select the MultiMobile MT9234MU CDC-ACM-XR modem from the list.  Click Change.

8. From the modem selection screen, select the modem MultiMobile MT9234MU CDC-ACM-XR and click Next.

9. Click Finish when FaxTalk has determined the modems capabilities.

10. The Fax Modem is now configured. You can now configure any specific settings for this modem in FaxTalk.

Problems detecting the modem in FaxTalk

If you have problems with FaxTalk detecting the modem during step 8, try one or more of the following steps:

  1. Disable automatic receive in FaxTalk.  Click Tools, Option, Answer.  Turn off (uncheck) automatically answer incoming calls.
  2. Disable Direct Mode in FaxTalk if it is enabled. Click on Tools, Options, Modem and select the modem in the right panel. Click Properties. Click Direct Mode tab.  Disable (uncheck) use Direct Mode direct mode for modem communications option.
  3. Disable any third-party software or device that may be using the fax modem.
  4. Reboot the computer and try the installation steps 1-10 again.

Once you have configured the modem and completed step 8-10 above, you can re-enable any of these options you turned off if they are required for your setup.

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