For a Skype URI to work, a Skype client must be installed on the user’s device, and the user must have an active Skype account. Certification of applications or webpages using Skype URIs is not required, since all interaction—specifically all audio and video—is through the Skype client.
Currently supported Skype URIs include:
People love Skype, why not it’s free.
No Skype is not a Freeimum product. Few if anyone will upgrade when they use Skype. The paid Skype users will usually sign up for a paid account upon initial registration. Most of these users are in the USA and in Europe.