I have used Skype web APIs for "Skype for business" but I am not able to login, I am trying using steps of "https://msdn.microsoft.com/en-us/skype/ucwa/createanapplication" blog.
First I have call https://lyncdiscover.mydomainname.com/ and its give me "xframe" and "redirect" URLs. After that I have call the redirect URL and its give me "user" and "xframe"
URLs.
Please guide me after then what OAuth URL I can use for User authentication.