The Data Session Control provides a means to control per data session basis the establishment of a new data session.
This means especially in the GPRS context that the establishment of a PDP session is modelled not the attach/detach mode. Change of terminal location is assumed to be managed by the underlying network and is therefore not part of the model. The underlying assumption is that a terminal initiates a data session and the application can reject the request for data session establishment, can continue the establishment or can continue and change the destination as requested by the terminal.
The modelling is similar to the Generic Call Control but assumes a simpler underlying state model. An
object and an IpDataSession
object are the interfaces used by the application, whereas
and the IpAppDataSession
interfaces are implemented by the application.