IMS architecture has defined mainly three types of application server. - SIP application server - Open Service Architecture (OSA) server - Customized applications for mobile network using enhanced logic (CAMEL)
At high level, there are two type of charging mechanism. One is known as online charging and the other one is offline charging. I want to dig more in the online charging mechanism. How many types of scenarios come out in online charging ?
What is meant by NASS bundled authentication scheme, GPRS IMS bundled authentication scheme,sip digest authentication scheme and what is the difference between them and on what conditions the are chosen?
would like to know what are all charging parameters , which will come from Network, need to be considered for IMS call charging in real time charging?
