Plantronics Calisto P240 Driver

The Plantronics Calisto P240 driver helps Windows recognize this USB handset and route microphone input and call audio correctly. It is useful when setting up the device for the first time, restoring sound after a system change, or troubleshooting a handset that your calling application cannot detect.

Key Features

• USB audio recognition: Allows Windows to identify the Calisto P240 as an audio device for voice communication.
• Microphone and playback support: Provides the audio connection needed to send your voice and hear callers through the handset.
• Windows audio integration: Lets you select the handset in Windows sound settings and compatible calling applications. Availability of call-control functions depends on the application and its settings.
• Compatibility-focused setup: The listed supported systems are Windows 10, 8.1, 7, Vista, and XP, with Microsoft identified as the driver vendor. Choose a package that matches your Windows release and system architecture.

How to Install Plantronics Calisto P240 Driver

1. Check your Windows version and system type. Confirm whether your installation is 32-bit or 64-bit before choosing a file. If you are comparing Windows 10/11 options, note that Windows 11 is not included in the supplied compatibility list.
2. Review the download details. Before starting your Plantronics Calisto P240 driver download for Windows, verify the supported operating system and publisher. Choose the latest version compatible with your setup rather than assuming every newer release will work. A free download should not require a separate paid driver-updater utility.
3. Connect the handset to a USB port. Let Windows attempt automatic installation first; it may find a suitable driver without a manual download.
4. Install the downloaded driver if needed. If the package includes an installer, follow its prompts. For an extracted driver package, open Device Manager, locate the handset or unidentified audio device, choose Update driver, and browse to the extracted folder.
5. Test audio after installation. Restart if prompted, then select the Calisto P240 as the microphone and playback device in your calling application. Make a test call to confirm both directions of audio work.

Keep the driver updated through Windows Update or a verified compatible package, especially if audio problems appear after a system change. An update may help resolve compatibility issues, but there is no need to replace a working driver simply because a different version is available.