The Design And Implementation Of The Presence Service Module Of Integrated Service Access Gateway Under

With the development of the Internet, nearly years Instant Communication be a kind of new correspondence form to was gradually accept by the public. From the earliest ICQ, AIM to recent OICQ, MSN Messenger, YAHOO Messenger etc all own the few ten million to even count hundred million of customer. Instant Communication have already become a must tool of the user.Instant Communication of two kinds of typical model business is Instant Messaging and Presence. The service of IM is opposite simple, it is to ask for help from a certain agreement, giving out a short news the other, The "Instant" performances did not save to turn to deliver the process in the transmission of the news. Presence services can at any time collect latest condition of the other, thus decide whether start correspondence and adoption what kind of correspondence means to link the other. At the same time Presence can also present own appearance to the other party, express the correspondence time and the correspondence meanses that oneself can accept. Some Presence services even can is divided into the other party different sets, the difference presents the different appearance to different teams.The thesis firstly aiming at IN technology's insufficiency, new generation service architecture based on Parlay/OSA API is brought forward; and then related the technique of Parlay X in the application in the NGN, compared Parlay X with Parlay, gets the technique of Parlay X combines with the technique of Web Service can convenient not have the professional telecommunication knowledge of IT develop the personnel to develop quickly various...