In X Lite: Menu > Preferences > Audio Codecs. Move PCMU (G.711 u-law) and PCMA (G.711 a-law) to the top. Uncheck iLBC and Speex (these cause crashes on Win11).
| Software | Free Tier | Win11 Native | Why upgrade from X Lite | | :--- | :--- | :--- | :--- | | | Yes (with ads) | Yes | Supports Windows 11 audio stack natively; no latency. | | MicroSIP | Yes (Open Source) | Yes | 3MB installer; perfect high-DPI support; uses Windows 11 notification center. | | Linphone | Yes | Yes | End-to-end encryption; modern UI. | | Bria Solo | Free (30-day trial) | Yes | The official successor to X Lite. Made by the same company. Costs ~$5/month. |
Open Registry Editor (Regedit). Navigate to HKEY_CURRENT_USER\Software\CounterPath\X-Lite\Settings . Create a new DWORD (32-bit) named DisableGPUAcceleration and set value to 1 . This stops X Lite from fighting with Windows 11's WDDM 3.0 drivers. x lite for windows 11
However, for the average remote worker, freelancer, or small business owner, the security risks, audio latency, and UI bugs make X Lite a poor choice for Windows 11. The operating system has evolved; your softphone should too.
But with the release of Windows 11, a major question has emerged: In X Lite: Menu > Preferences > Audio Codecs
If you are setting up X Lite for Windows 11 for a production business line, stop . Use MicroSIP (free, lightweight) or Bria Solo (paid, feature-rich) instead. X Lite is now a legacy testing tool, not a daily driver. Part 7: The "Ghost" X Lite for Windows 11 (Unofficial Builds) You may find websites claiming to offer "X Lite for Windows 11 specifically" or "X Lite 64-bit Edition." These are scams.
| Issue | Symptom | Fix | | :--- | :--- | :--- | | | You can connect, but neither party hears the other. | Windows 11 firewall blocks X Lite. Go to Windows Security > Firewall > Allow an app. Add X-Lite.exe and allow both Public and Private. | | Microphone not found | X Lite shows "No Device" in audio settings. | You are likely using a Bluetooth headset. Go to Windows 11 Sound Settings > Input > Allow apps to take exclusive control of this device (Check the box). Restart X Lite. | | Interface too small | The dial pad is unreadable on a 4K monitor. | Right-click X-Lite.exe > Properties > Compatibility > Change high DPI settings > Check "Override high DPI scaling behavior" > Select "System (Enhanced)". | | Random Crashes | X Lite closes when idle for 10 minutes. | Go to Windows 11 Power Settings > USB settings > Disable "USB selective suspend" (fixes USB audio device disconnection). | Part 5: Security Risks on Modern Windows This is a critical section. X Lite has not received a security update since approximately 2018. | Software | Free Tier | Win11 Native
X Lite is a nostalgic, lightweight tool that can be forced to run on Windows 11 with the tweaks described above. It remains useful for a very niche audience: IT administrators testing new SIP trunk setups on a lab machine.