The invention provides a method for establishing communications with a quiescent mobile vehicle. A satellite radio system broadcast channel is monitored for a command signal. The command signal is extracted from the broadcast channel. A cell phone in a telematics unit is powered up based on the command signal.
A method for establishing communication between a communication protocol controller and a main controller including the steps of monitoring a communication bus using a power management device wherein the bus is electrically coupled to the protocol controller, the power management device, and the main controller residing in an initial low power mode, determining when the protocol controller is attempting to communicate with the main controller, generating a wake-up signal in response to the attempted communication, presenting the wake-up signal to the processor of the main controller, wherein the main controller enters a wake-up mode in response to the wake-up signal, reading at least one communication protocol configuration parameter from the data storage device, and initiating communication between the main controller and the protocol controller using the at least one communication protocol configuration parameter such that communication between the protocol controller and a communication protocol enabled device is maintained.
A method to remotely determine a location of a mobile unit without intervention by a user of the mobile unit is provided. The mobile unit may receive a location query, download location data from a GPS, and transmit the location data via a wireless telecommunications network. For example, a call center may initiate a location query using a voice channel call to the mobile unit. In addition, the mobile unit may select a mode of communication from a number of alternative modes of digital wireless communication based upon a determined characteristic of the transmission mode. By way of example, the determined characteristic could be a transmission speed, cost of transmission, or signal strength of the selected communication mode. Furthermore, the unit may be a battery pack or other accessory device attachable to a wireless telephone handset.
The method for the communication device comprising the microphone, the speaker, the input device, the display, and the wireless communicating system. When the method is implemented, the email data is transferred to the predetermined email address at the predetermined time identified by the user.
