Is JAIN-SIP 1.2 Stateful/Stateless or DialogStateful?
Your application can choose its desired behavior. You have the option to create a dialog for the first (dialog creating) transaction. Once a dialog is created, however, all incoming requests that belong to the dialog are automatically given a server transaction and are hence handled statefully. You can also create dialogs under program control and associate it with the Server or Client Transaction ( new feature added for JAIN-SIP-1.