Webrtc Line Is Not Registered 3cx App _verified_ -
Ensure the browser (Chrome/Edge) is allowed to communicate through the Windows Defender Firewall.
: If the "allow notifications" prompt never appeared, manually enter chrome://settings/content/notifications in your address bar and add your 3CX Web Client URL to the "Allow" list. webrtc line is not registered 3cx app
Ensure "SIP ALG" is disabled on your office or home router. This feature frequently corrupts WebRTC traffic. Ensure the browser (Chrome/Edge) is allowed to communicate
Ensure you are accessing the Web Client via https:// and not http:// . Microphone Access Click the in the browser address bar. Ensure "Microphone" is set to Allow . webrtc line is not registered 3cx app
A built-in diagnostic and repair tool specifically for the "Line Not Registered" state in the 3CX WebRTC client (Web/Desktop/Progressive Web App).