3.6.1 Abstract Data Model
The message signaling that takes place in the session initialization protocol is to complete the Remote Assistance connection; that is, to change the state from the basic Remote Assistance connection state in which the expert does not have the view of the novice screen to the state in which the expert has the view of the novice screen.
When the Remote Assistance connection has completed successfully, or if there was an error during connection, the novice is responsible for keeping track of this state change.