Webitel Phone has browser extension that allows you to identify the phone number on the page and make an outgoing call by clicking the mouse button

Installation and setup 

After the extension is installed you will see a handset icon. By clicking the icon you will be able to enable or disable the function of identifying the phone numbers on the page:  

In the options, it is possible to specify which protocols to track, determining the number by the minimum and maximum length of the digits, as well as the color of which to highlight the numbers on the page: 

Usage

The extension will highlight the phone numbers with the set color: 

Clicking the links makes the Webitel Phone pop up and dial the number automatically:

Additionally, it is possible to select any text on the page and by calling the context menu you can transfer the text to Webitel Phone: