Abstract: The present invention relates generally to a method and system for authenticating a transaction between a user and a payment system. The information of the transaction is transmitted through a secure communications from the user to the payment system, and the authentication message is sent from a payment system to the user via an authentication system. The authentication message is sent from the authentication system from one of multiplicity of addresses to the user, and the response to the message is received in that address. Additional security is achieved when the reply addresses are selected randomly.

Abstract: The present publication discloses a method and system for sending messages in a telecommunications network (1, 2, 6, 11, 12), in which method digital messages (40) which contain information on the desired reply address (32) are mass sent (3), and messages, which are sent on the basis of the reply-address information (32) are received (10). According to the invention, the reply-address information of each mass-sent message (40) is converted (3) to correspond to a predefined dialogue, in which the stage of the dialogue defines unequivocally the reply-address information (32), so that the transmission and reception of the messages are implemented in different parts of the telecommunications system (1, 2, 6, 11, 12).

Abstract: The present publication discloses a method and system for delivering goods from main system (S1) via subsystem (S2) to an end address (D1-Dn) of the customer (3). According to the invention the end address (D1-Dn) of the customer (3) is enquired (4) from the customer via telecommunications network by a multiple choice enquiry (4), the end address (D1-Dn) selected by the customer is received (5) and the goods are delivered to the selected end address (D1-Dn).

Abstract: This publication discloses a method for delivering messages in a telecommunications network (1, 2, 6, 11, 12). In the method, the first text-form message (40) of the session N is delivered (43) to the user of the service, in such a way that the sender address (e.g., the A number) is converted to correspond to the session number N and the session stage J, in stages 2-n (41) of the session N, a text-form message (40) is received, from the user of the message service, at the sender address defined in the message in the previous stage, and the session proceeds according to the contents of the message (40), in such a way that the sender address (e.g., the A number) is converted to correspond to the session number N and the new session stage J, and the next text-form message of session N is sent to the user of the message service.

Abstract: The invention relates to a method and system for booking a reservation in a booking system and synchronizing bookings in several booking systems comprising at least one booking systems; at least one service provider; a mediator service; a client, and at least one client terminal device that can be a mobile device and that includes a dialogue. In addition, the system comprises telecommunication connections that are used to connect the booking systems, the service providers, the mediator, and the client terminal device. The client uses the dialogue to enter information into the system. There mediator gets inquiries and answers from booking systems, service providers, and dialogues, and transfers and adapts information between them.

Abstract: This publication discloses a method and system for delivering messages in a telecommunications network (1, 2, 6, 11, 12). In the method a voice-message call attempt is received (43), or a connection is formed to a potential user of a service, on the basis of a voice-message call attempt. According to the invention, as a response to the voice-message connection formed or to the call attempt, to the second part (41) of the connection is sent a text-form message, which initiates a long, logically continuous, temporally discontinuous session N, in such a way that the sender address (e.g., the A number) is converted to correspond to the session number N and the session stage J at the time, and in the message there is at least one selection query.

Abstract: The present publication discloses a method and system for sending messages in a telecommunications network (1, 2, 6, 11, 12), in which method digital messages (40) which contain information on the desired reply address (32) are mass sent (3), and messages, which are sent on the basis of the reply-address information (32) are received (10). According to the invention, the reply-address information of each mass-sent message (40) is converted (3) to correspond to a predefined dialogue, in which the stage of the dialogue defines unequivocally the reply-address information (32), so that the transmission and reception of the messages are implemented in different parts of the telecommunications system (1, 2, 6, 11, 12).

Abstract: The invention relates to a method and system for booking reservations in a booking system and synchronizing bookings among several booking systems. The system comprises at least one booking system; at least one service provider; a mediator service; a client, and at least one client terminal device that can be a mobile device and that includes a dialogue. The client uses the dialogue to enter information into the system and the mediator receives inquiries and answers from the at least one booking system, the at least one service provider, and the at least one client. The mediator transfers and adapts information between them. The method and system are particularly suited for use with mobile phone users by Small Message Service messages.