All user actions are handled by servlets that call the appropriate methods on the corresponding session beans and then call the appropriate JSP pages to return the results of the action to the user.

Suppose you wish to end the SIP call session between Agent 1 and Agent 2; you can issue an endCall(CallIdentifier) function call on the Third Party Call Web service.

A session facade EJB business methods call more than one DAO to save on more than one table.