Google Click-to-Call

Google Click-to-Call is a service provided by Google which allows users to call advertisers from Google search results pages.

All calls are free at Google's expense. However, if the call is made to a mobile phone, the caller may incur airtime fees depending on the mobile phone plan and the location of the caller and the advertiser (if they are in different countries at the time of the call, the call will probably cost more).

Abuse of the service is easily achieved, making it questionable about how long it will continue to exist. As some individuals have pointed out in technology blogs, you can easily connect two different numbers who have no intention of talking to each other. This is easily accomplished by typing in the phone number of a company or other individual, which will then connect them to the directory listing selected.