Making an ecall regardless of whether registration attempts are responded to

摘要

The invention lies in in-vehicle emergency call services. When the eCall device supports PSAP callback network registration by the eCall device is required. Currently the need for registration before the eCall device makes a call causes delays for the emergency call and may even mean the call fails. The specification discloses a wireless device (10) which transmits a request message for receipt by a wireless network (4) to at least one of request attachment of the wireless device (10) to the wireless network (4) and request location updating for the wireless device (10) from the wireless network (4). The wireless device (10) subsequently attempts an emergency call to the wireless network (4) regardless of whether or not the wireless device (10) receives a response to the request.