If ContactPad is enabled to use WebRTC, you can make and receive calls using your usual computer or device, without any need for a physical telephone. For more information, see ContactPad with WebRTC.
Before you use ContactPad with WebRTC, remember to set up audio devices properly. These devices include microphone, speakers, recording and playback equipment, and browser.
ContactPad with WebRTC is only supported in Chrome.
The first time you use ContactPad with WebRTC, your browser might ask permission to use the device's audio hardware. In Chrome Allow and Deny buttons appear. Click Allow.