SailFin CAFE Fundamentals Part II: Communications and UserProcedures (with an example)

Here is the second part of the CAFE fundamentals blog series. This time, I am explaining two important interfaces called Communication and UserProcedure with an example. If this is the first time you are hearing about SailFin CAFE, I recommend reading the CAFE fundamentals article and the blog on writing your first CAFE application. The core of this discussion is an example which shows triggering a Conversation when the callee comes online. Just like the earlier examples in my previous blogs, this one also doesn't have any SIP Servlets and is written using the higher level API provided by SailFin CAFE. At first, lets take a look at Communication interface in CAFE. Just as the name implies it is any form of Communication between 2 or more Participants. It can be text/audio/video/filetransfer etc. There are 6 kinds of Communication interfaces exposed by CAFE at the moment. Conversation : Communication between two Participants. Typically this is between two user agents (or sip phones). It can also be between a sip phone and a Player/Recorder.  Conference: As the name implies it is a communication between more than two user agents, which mandates the use of a media mixer in the media server always.  IMConversation: This is a text chat between two user agents.  IMConference: A text chat between more than two participants, which is brokered by the server. MSRPConversation. A two-party communica...

Date: May, 17 2010
Url: http://www.java.net/blog/binod/archive/2010/05/14/sailfin-cafe-using-presence-and-conversation-together

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