http://blogs.msdn.com/b/jcalev/archive/2007/05/18/introduction-to-the-ucma-api-part-10-introduction-to-sdp.aspxOK, so now we have a client and a server that can both sign in, create a dialog, and recognize when the other has dropped the connection. I’m sure what you’d really like to do is get them to message each other! I’m sure some of you have gone ahead anden-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/jcalev/archive/2007/05/18/introduction-to-the-ucma-api-part-10-introduction-to-sdp.aspx#4323016Fri, 10 Aug 2007 19:44:57 GMT91d46819-8472-40ad-a661-2c78acb4018c:4323016Joe Calev's WebLog<p>The following is more information about why each answer is correct for the quiz I presented yesterday.</p> <img src="http://blogs.msdn.com/aggbug.aspx?PostID=4323016" width="1" height="1">