http://blogs.msdn.com/joe_hofstader/archive/tags/IP+Multimedia+Subsystem/default.aspxTags: IP Multimedia Subsystemen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/joe_hofstader/archive/2007/11/14/communications-as-a-service.aspxWed, 14 Nov 2007 22:36:00 GMT91d46819-8472-40ad-a661-2c78acb4018c:6222660hofstader2http://blogs.msdn.com/joe_hofstader/comments/6222660.aspxhttp://blogs.msdn.com/joe_hofstader/commentrss.aspx?PostID=6222660Communications as a Service (CaaS) is an architecture for communications applications. CaaS extends the principles of a Software as a Service (SaaS) architecture by adding a control layer based on the Session Initiation Protocol (SIP), The ability to...(<a href="http://blogs.msdn.com/joe_hofstader/archive/2007/11/14/communications-as-a-service.aspx">read more</a>)<img src="http://blogs.msdn.com/aggbug.aspx?PostID=6222660" width="1" height="1">SIPIP Multimedia SubsystemSession Initiation ProtocolIMSCaaSCommunications as a Servicehttp://blogs.msdn.com/joe_hofstader/archive/2007/09/10/an-introduction-to-the-blog.aspxMon, 10 Sep 2007 23:49:00 GMT91d46819-8472-40ad-a661-2c78acb4018c:4856732hofstader1http://blogs.msdn.com/joe_hofstader/comments/4856732.aspxhttp://blogs.msdn.com/joe_hofstader/commentrss.aspx?PostID=4856732Writing about architecting communications solutions is like catching a tiger by the tail – narrowing down the amount of detailed information and background material required to provide a cohesive description on how to architect communications software...(<a href="http://blogs.msdn.com/joe_hofstader/archive/2007/09/10/an-introduction-to-the-blog.aspx">read more</a>)<img src="http://blogs.msdn.com/aggbug.aspx?PostID=4856732" width="1" height="1">SIPCommunications ServicesIP Multimedia SubsystemSession Initiation ProtocolIMS