Skype buttons and Skype URI links are great ways for people to call you using Skype by clicking a button or a link displayed in your application or on your website.
You can display Skype buttons on your website, blog or even in your application to let other people contact you more easily. Your friends only have to click the button on your page or email, and if they have Skype, they can call you.
To get a Skype button:
Adding Skype URI links to your application or website allows people to call you on Skype, by simply clicking the links. Skype URI links work in the same way as a Skype button.
To learn more, visit the Skype URI pages on Skype Developer.