Hi, This is a new project, which we are going to develope a new technology in telecommunication (GSM). My task is develope a component based gateways , then this gateway is use for communication between two servers like HLR and IM-HSS(Extension of HSS). In telecommunication the central data base for all subscriber data stored in Home Location Registry(HLR), during circuit switched domain and packet swiched domain. But we are going to develope a new server called Home Subscriber server (HSS), because this server will be develope totally based on web services. and we are completely concentrate on packet switched domain because it supports Internet and other gateways like GPRS, UMTS etc. My task is have to develope component based Gateway between HLR and IM-HSS (Extension of HSS) for communication between two servers . later this gateway could be serve as web services to IM-HSS. 1. I have to develope gateway using Java beans, and for web services WSDL. 2. I need a Application server 3. J2SE 4. DataBase. My questions 1. What exactls Gateway means, for my understanding Gateway means, develope programming logic to communicate with another just like Adapter. But to develope gateway I need application server also?? what the softwares I need to use for develope gateway? 2. How can I develope gateways using Java beans between this two servers for communication , plese give any simple hint to get clear. 3. Gateway between these two servers means, only java beans logic have to develope or I need a application server also for gateways? 4. Java beans means EJB or what is the difference between these two? 5. For webservices I need a application server?? 6. Where exactls fit application server between HLR and IM-HSS?? 7. Once I developed gateways then this could be used for webservices , what is structure behind gateways and web services?? 7. what is the difference between J2SE and jdk1.4 and J2EE SDK?? I am bit of confusing this versions. This would be very grateful and appriciated to clear those for me.
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