Supported Browsers

The Cognigy Click To Call SDK requires a browser that supports the WebRTC APIs: RTCPeerConnection, getUserMedia.

Web Browsers

WebRTC APIs are only available in secure contexts such as HTTPS or localhost. Serve your application over HTTPS in production.

Browser	Minimum Version
Chrome	93+
Firefox	92+
Safari	15.4+
Edge	93+ (Chromium-based)

Mobile Browsers

Mobile browsers might have stricter autoplay policies for audio. To avoid playback issues, start calls from a user gesture, for example, a button tap.

Browser	Minimum Version
Chrome for Android	93+
Safari for iOS	iOS 15.4+
Firefox for Android	92+

Runtime Detection

Use checkWebRTCSupport() to verify browser compatibility at runtime before creating a client:

import { checkWebRTCSupport } from '@cognigy/click-to-call-sdk';

const support = checkWebRTCSupport();
if (!support.supported) {
  console.error('Missing WebRTC features:', support.missing);
} else {
  console.log('WebRTC is fully supported');
}

The missing array lists the unavailable features: window, RTCPeerConnection, navigator, navigator.mediaDevices, and navigator.mediaDevices.getUserMedia. The SDK runs only in browsers. In other environments, such as server-side rendering, createWebRTCClient() fails with the error WebRTC is not supported in this environment.

More Information

Last modified on October 23, 2026

Overview

Tutorials

Click To Call SDK

Web Browsers

Mobile Browsers

Runtime Detection

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​Web Browsers

​Mobile Browsers

​Runtime Detection

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Web Browsers

Mobile Browsers

Runtime Detection

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