Design And Implementation Of PHS SMS

The short message (briefly named SMS) is a function of cellular phone sending and receiving the limited length of text. SMS is mainly used for deliver text message, also supporting numeral and binary data. SMS is a kind of service which is different from original sound service.Because the message must be filled on company net and sent out on the internet automatically, supporting the function of connecting the units around the process, the communication of data between the inside and outside net becomes the technique key point. Through deeply analysis, the stability of communication and the related safety provision of company must be insisted. The connection inside and outside net must be completely physically isolated. Finally we adopt of using low floor physical connection, passing the interface of COM. The interface also can strictly restrict the data flow according to the format in order to guarantee the legitimacy of the information which is sent out.The standard of data exchange between inside the outside net:1. Stability. The system must own the function of permit the trouble permition. System must avoid the mistake automatically while carrying on data through the low floor of net.2. Efficiently. For the company, the efficiency of the SMS decides the quantity of service and enterprise prestige. Whether the message can be translated on high-speed or not decides the business logics.3. Under Control. Shaking hands is a key action between inside the outside net. The both sides must control the status of the other'and decide the next action.The main function of the SMS is:Providing interface for application.Through the interface, the communication between application and SMGW gateway can be connected, basing on the CNGP.