This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
Telephony object you can use to initiate and control telephone calls from the browser.
var phone = window.navigator.mozTelephony;
navigator.mozTelephony is a
Telephony object you can use to control the phone features of the device on which the browser is running.
This is a non standard implementation, but it is discussed at W3C as part of the System Application Working Group.
|Web Telephony API||Editor's Draft||Editor Draft (WIP).|
For obvious reasons, support is primarily expected on mobile browsers.
|Feature||Android||Firefox Mobile (Gecko)||IE Mobile||Opera Mobile||Safari Mobile|
|Basic support||Not supported||12.0 (12.0)||Not supported||Not supported||Not supported|