Abstract: The present invention relates to a radio-based mobile short-range communication system SRC, comprising a transmitting and receiving unit. The receiving units are offered information from the transmitting units from a number of information providers. The information providers offer information within one or more predetermined subject fields. The receiving unit selects a desired information and obtains this information presented via a presentation element. The transmitting unit transfers a protocol divided into a number of main divisions. For each information provider, the protocol is divided into a number of subdivisions, one of which indicates different subject fields. The subject fields constitute headings for different subject categories which are presented in a number of octets. Each subject field is represented by one bit which is set to 0 when the information provider does not have any information to deliver within the subject field and, respectively, to 1 for information which is provided.