Microsoft Lync and Skype for Business have a rich set of .NET APIs which make it easy to extend the platform and integrate it with other applications. This blog helps explain how to use those APIs.

How to tell where a call is ringing in UCMA

Posted: May 8th, 2012 | Author: | Filed under: UCMA 3.0 | Tags: , , , , , | No Comments »

Lately I’ve been spending a lot of time looking at “forking,” the process where a call (audio, IM, video, whatever) to a user is sent to all devices where that user is logged into Lync, and various ways to handle it in UCMA. A while back, I described how you can look at the SIP headers in the response when an outgoing call is answered to find out if, for example, a voicemail box answered the call. By looking at “provisional responses,” you can get details like this before the call is even answered, while it’s still “ringing” to the user’s various endpoints. Continue reading “How to tell where a call is ringing in UCMA” »

Forking SIP requests in an MSPL script

Posted: January 17th, 2012 | Author: | Filed under: Lync Development, MSPL | Tags: , | 10 Comments »

In previous blog posts on Microsoft SIP Processing Language (MSPL), I’ve explained how to essentially intercept SIP requests, such as the INVITE message that initiates a call, and pass them along to a UCMA application for handling by passing a parameter to the ProxyRequest method. In this post, I want to discuss what you can do if you want to “fork” a request, which means you are sending it to multiple endpoints simultaneously. Continue reading “Forking SIP requests in an MSPL script” »