checkWebRTCSupport - Cognigy Documentation

Checks whether the current browser supports Click To Call. Call this function before creating a client to verify that all required browser APIs are available.

Signature

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

const support = checkWebRTCSupport();

Parameters

None.

Returns

{ supported: boolean; missing: string[] }

Property	Type	Description
`supported`	`boolean`	`true` if the browser supports all required WebRTC APIs.
`missing`	`string[]`	List of missing browser features, if any. Possible values are `window`, `RTCPeerConnection`, `navigator`, `navigator.mediaDevices`, and `navigator.mediaDevices.getUserMedia`.

Example

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

const support = checkWebRTCSupport();
if (!support.supported) {
  console.error('WebRTC not supported. Missing features:', support.missing);
} else {
  console.log('WebRTC is supported — ready to create a client');
}

More information

createWebRTCClient — create a client after verifying browser support

Last modified on November 11, 2026