It is a doddle!, Doddle is a WebPhone you can use it to add Call Me Button, Click2Call features for your VoIP Line and Web Site!
Two Steps To turn your website into a Telephone extension.
Step 1: Create two SIP/VoIP accounts anywhere.
There are many VoIP providers out there offering FREE SIP accounts and FREE calls between users.
You can use, for instance iptel service or ippi Create two accounts: [myuser1, mypassword1] and [myuser2, mypassword2]
Step 2: Configure Doddle webphone and web Call Button widgets this way:
Making call from webpage: A Call Button, user2 calling user1 -Embed HTML Code