Abstract: The invention concerns a method, a system and a device for a short message service ordering system for mobile terminals, such as mobile telephones. Through a short message service center (Short message service center) short messages with an enquiry are transmitted to users. For every user, a monitoring function (user session management) is initialized. At least one further message between the user and the short message service center is exchanged. During the exchanging of further messages continuously a status check and a status updating for the user are effected at or through the short message service center.