Cisco Dialer is a small extension that provides you with a quick, easy and convenient way to call people within your contacts list. Just add the address of your phone to Google Contacts and open the contacts in your Google Mail to view the phone number.

Once you add the address, you can hover over any number and it will show the phone icon next to it. Select that number and it should start dialing.

The new version also supports dialing from the omnibox or from a site. Just open the extension settings and enable the option to make any number dialable on any site.