Abstract: The invention concerns a method and a system enabling users (11) of an Internet type computer network provided with multimedia terminals (16) comprising a microphone (17) and connected to an Internet type computer network (15), remotely located from a service supplier (12), to accede rapidly and safely, to services (30) offered by this service supplier (12).

Abstract: The invention concerns a method and system for safely transmitting a fax between a transmitter sending the fax and at least a receiver (11) receiving the fax (162) using a fax machine (161) associated with a telephone equipment (16). The faxes (162) are routed between a transmitter and a receiver by a communication network (15) via a fax management center (30). The fax management center (30) provides the receiver (11) with a card, formatted like a credit card, personalized by specific identifiers for each card and each receiver. This card (10) emits brief identifying sound signals, of the DTMF type, at least partially encrypted, varying with each operation, when it is actuated (14) by the receiver (11). The signals received by the microphone (17) of the telephone equipment (16) are transmitted by the communication network (15) to the computer services (18) of the fax management center (30).

Abstract: The invention concerns a method and a system enabling gamesters (11) of a virtual casino to accede safely and rapidly, by means of a microphone (17) connected to a communication network (15), to the different games that the virtual casino (12) offers to its gamesters (11).

Abstract: The invention concerns a method and a system enabling the customers (11) of a bank or an insurance company (12), remotely located, to accede safely and rapidly, by means of a microphone (17) connected to a communication network (15), to the services offered by this bank or insurance company (12).

Abstract: The invention concerns a method an a system enabling a centre managing telephone calls (30) to different suppliers of services (40), to identify safely and rapidly the customers (11) of the service suppliers calling the management centre by means of a telephone equipment (16) connected to a communication network (15).

Abstract: The invention concerns a method and a system enabling a telecommunication operator (12) to identify rapidly and to debit in complete security the accounts of subscribers of a telephone network.

Abstract: A method enabling two populations of persons, one being sedentary (for example a provider of long-distance services) and the other being nomadic (for example the customers of this provider of services) to exchange data in a sure and speedy manner, comprises the following steps:portable objects are placed at the disposal of the persons belonging to the nomadic population, these objects having the credit card format and being customized by specific identifiers for each person and for each card, the card is used to transmit at least partially encrypted DTMF type brief acoustic identification signals which are received by means of the microphone of a standard telephone set and processed by means of the standard telephone set so that the resulting signal can be transmitted, through a telephone or computer network, to the data-processing service of at least one of the persons of the sedentary population,the signals coming from the card are processed by means of a specific software program whose parameters are a fun

Abstract: Disclosed is a method enabling the generation, by means of voice frequencies, of a sequence of several characters and the high-speed transmission of these characters. This method comprises the step of the elimination, during transmission, of the blanks between two successive characters when these characters are distinct or are encoded distinctly.