title: Sip <--> Lync Integration
body: <p>I have a SIP app that I wish to connect to a Lync environment. So far I've set up a Static Route enabling the Lync Server to deliver SIP messages to my App. However, the messages I send to the Server are not being answered.</p>
  
  <p>Is there any way to check if my app is correctly Authenticated to the Lync Server? how do I authenticate?</p>
  
  <p>Also, googling around I read that in order to enable your App to talk to a Lync Server you have to use UCMA: is this true? I need to start from scratch? any guides? Microsoft's documentation is rather poor.</p>
  
  <p>Thanks a lot</p>