1. A container unit for handling a message in response to an event, the container unit being placed in a container, the container unit comprising: a cellular network radio, a short range radio, a satellite locator, a power source, a memory, and a connection set-up logic stored in the memory; the container unit being adapted to store the message in the memory; on the basis of the connection set-up logic, perform the following connection set-up attempts: a) a connection through the short range radio system directly to a gateway unit providing a transmission path for the message, b) a connection through the short range radio system to the gateway unit via at least one other container unit which is placed in a different container; c) a connection through the cellular network radio to a cellular network providing an alternative transmission path for the message, and d) a connection through the short range radio system directly or via one ore more other container units to such container unit which is located on the service area of the cellular network; and transmit the message when at least one of the connection set-up attempts results in an available connection or abandon the message when the message expires.