In the event of an emergency situation or a roadside trouble, drivers need rapid help. But, in many cases, it takes too much time to get help, and it even results in a more fatal situation. Rapid response to run-off-the-road and other accidents can help reduce the number of resulting deaths. In many countries, mayday service was developed and commercialized to provide a call and dispatching service in an emergency situation.Daewoo Motor is developing a DreamNet system which uses technologies for real-time emergency call and dispatching. The DreamNet system is composed mainly of in-vehicle unit, communications system and DreamNet service center. The system can be operated by user''s request and also be activated by an external event such as accident, emergency and theft of the vehicle. It transmits the location and type of distress information of the vehicle to the DreamNet service center. The following describes an overview and features of the DreamNet system which is being developed for commercial service.