摘要:
An exemplary embodiment of the invention is a communications system including a vehicle embedded cellular phone subsystem for receiving and sending communications and a wireless device subsystem including a base station and a wireless device. The base station is coupled to the vehicle embedded cellular phone subsystem for receiving incoming cellular communications at the wireless device and sending communications from the wireless device to the vehicle embedded cellular phone subsystem.
摘要:
A vehicle user can request emergency or roadside assistance from a response center by activating a button in the vehicle. The global positioning system is used to continuously store the vehicle location. A cellular telephone network is used to contact a response center and transfer a data string via modem containing information to assist the response center in acting on the request. If a first attempt to contact the response center at a phone number for receiving a data transfer is unsuccessful, a second call is made to a different number bypassing the data transfer and immediately placing the cellular phone into an unmuted condition. This allows the user to hear and interact with a cellular operator, if necessary, prior to being connected to the response center.
摘要:
A method of wirelessly communicating packetized data between a vehicle and a central facility includes receiving a request at a vehicle telematics unit to transmit packetized data; determining whether the vehicle telematics unit is communicating through a roaming wireless carrier system; and delaying the transmission of packetized data between the vehicle telematics unit and a central facility until the vehicle telematics unit is no longer communicating through the roaming wireless carrier system.
摘要:
A method of wirelessly communicating packetized data between a vehicle and a central facility includes receiving a request at a vehicle telematics unit to transmit packetized data; determining whether the vehicle telematics unit is communicating through a roaming wireless carrier system; and delaying the transmission of packetized data between the vehicle telematics unit and a central facility until the vehicle telematics unit is no longer communicating through the roaming wireless carrier system.