This driver download is available for Windows PCs.
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At a Glance
DeviceUSB Data Fax Voice Modem with SmartSP
VendorCxt
Supported OSWindows 10, 8.1, 7, Vista, XP
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The USB Data Fax Voice Modem with SmartSP driver helps Windows recognize your Cxt USB modem and communicate with its data, fax, and voice functions. It is intended for users setting up the modem for the first time, reinstalling Windows, or troubleshooting a device that appears as unknown or fails to connect.
Key Features
- USB modem recognition: Provides the driver support Windows needs to identify the modem and make it available to compatible applications.
- Data and fax connectivity: Supports communication between the modem and software used for dial-up connections or sending and receiving faxes over a suitable telephone line.
- Voice application support: Allows compatible software to access the modem’s voice capabilities, depending on the application and hardware configuration.
- Windows compatibility: Listed operating systems include Windows 10, 8.1, 7, Vista, and XP. Select a package that matches your Windows version and system architecture.
How to Install USB Data Fax Voice Modem with SmartSP Driver
- Check your system and device. Confirm your Windows version and whether it is 32-bit or 64-bit. If you are unsure about the modem model, check its label or review its hardware IDs in Device Manager.
- Choose a compatible package. Before starting your USB Data Fax Voice Modem with SmartSP driver download for Windows, review the supported operating systems and device details. If you are comparing Windows 10/11 compatibility, note that Windows 11 is not listed among the supported systems here.
- Download and prepare the files. Use a trusted source for a free download, then scan the package with your security software. Extract it if it comes in a compressed archive.
- Install the driver. Follow the package’s setup instructions, including any guidance on when to connect the modem. If no installer is included, open Device Manager, select the modem, choose Update driver, and browse to the extracted driver folder.
- Verify operation. Restart Windows if prompted, then check Device Manager for warning icons. Test the modem with compatible fax, dial-up, or voice software and the required telephone connection.
Keep the driver updated when a compatible release addresses a problem or improves support for your setup. Before you update, confirm that the latest version still supports your modem and operating system; a newer package is not automatically the right choice for older hardware.
Driver Details
| Device | USB Data Fax Voice Modem with SmartSP |
|---|---|
| Vendor | Cxt |
| Category | Network |
| Supported OS | Windows 10, 8.1, 7, Vista, XP |
| Published | November 1, 2026 |
| Updated | November 1, 2026 |
This driver download is available for Windows PCs.