METHOD AND PROCESSING SYSTEM FOR ATTEMPTING AN EMERGENCY CALL BY A WIRELESS DEVICE

摘要

The application concerns the eCall service for setting up emergency calls as defined by 3GPP (cf. 3GPP TS 24.008). A wireless eCall device (10) being in an eCall inactive service state, transmits a request message for receipt by a wireless network (4) to at least one of request attachment of the wireless eCall device (10) to the wireless network (4) and request location updating for the wireless eCall device (10) from the wireless network (4). The wireless eCall device (10) subsequently attempts an emergency call to the wireless network (4) regardless of whether or not the wireless eCall device (10) receives a response to the request. In this way, the wireless eCall device (10) can make the emergency call promptly and without significant delay. Moreover, PSAP call back is possible, in case the attachment or location update procedure completes successfully.