Method for switching a telematics communication

A method for providing telematics communications is provided comprising: sending an ignition-on message to a switching server by a telematics device, when an ignition is turned on; sending a switching phone list to the telematics device by the switching server; sending to the switching server, by the telematics device, information about a mobile terminal that a driver or passenger selects from the switching phone list and an authentication number that the driver or passenger inputs; and sending a switching setting result to the mobile terminal by the switching server after performing user authentication by using the authentication number and performing switching setting to allow a telephone number assigned to the selected mobile terminal to be switched to that of the telematics device.