Data processing device for managing carpool trip offers and requests, characterized by: - means for managing trip offers, which means are configured to: • receive a trip offer from a first user, said trip offer comprising information regarding the trip and the first user, and • store the received trip offer in association with an offer identification code, - means for managing the display of a list of trip offers on a screen (6, 7a, 7b), which means are configured to: • determine, from among trip offers received by the means for managing trip offers, a list of trip offers and of associated offer identification codes to be displayed on the screen, the trip offers in the list being selected on the basis of a location of the screen, and • transmit the determined list of trip offers and the associated identification codes to the screen, - connecting means, which are configured to: • receive, from a second user, an offer identification code associated with a trip offer from said displayed list, and • connect the second user to the first user who transmitted the trip offer associated with said received offer identification code; wherein the connecting means comprise an interactive voice response server, which is configured to receive the offer identification code from the second user in the form of a numerical code during a call to the interactive voice response server, and to connect the second user to said first user over the telephone during the call to the interactive voice response server. - means for managing trip offers, which means are configured to: • receive a trip offer from a first user, said trip offer comprising information regarding the trip and the first user, and • store the received trip offer in association with an offer identification code, • receive a trip offer from a first user, said trip offer comprising information regarding the trip and the first user, and • store the received trip offer in association with an offer identification code, - means for managing the display of a list of trip offers on a screen (6, 7a, 7b), which means are configured to: • determine, from among trip offers received by the means for managing trip offers, a list of trip offers and of associated offer identification codes to be displayed on the screen, the trip offers in the list being selected on the basis of a location of the screen, and • transmit the determined list of trip offers and the associated identification codes to the screen, • determine, from among trip offers received by the means for managing trip offers, a list of trip offers and of associated offer identification codes to be displayed on the screen, the trip offers in the list being selected on the basis of a location of the screen, and • transmit the determined list of trip offers and the associated identification codes to the screen, - connecting means, which are configured to: • receive, from a second user, an offer identification code associated with a trip offer from said displayed list, and • connect the second user to the first user who transmitted the trip offer associated with said received offer identification code; wherein the connecting means comprise an interactive voice response server, which is configured to receive the offer identification code from the second user in the form of a numerical code during a call to the interactive voice response server, and to connect the second user to said first user over the telephone during the call to the interactive voice response server. • receive, from a second user, an offer identification code associated with a trip offer from said displayed list, and • connect the second user to the first user who transmitted the trip offer associated with said received offer identification code; wherein the connecting means comprise an interactive voice response server, which is configured to receive the offer identification code from the second user in the form of a numerical code during a call to the interactive voice response server, and to connect the second user to said first user over the telephone during the call to the interactive voice response server.