title: How to Embed call Viber on website?
body: <p>I have an idea to make call by viber in a website.
  Example, when you go to my website by smartphone, you want to contact me, and we are also use Viber. You can click on "Call viber" button to make a call. It's look like "ymsgr:sendim?your_yahoo_id"
  I don't know how to do it, is possible?</p>