Patent ID: 8032111

Claim:
A method of deactivating a telematics unit with respect to communication service through a wireless communication network, comprising steps of: receiving a request to deactivate the communication service in a wireless communication network in a system of an operator of the wireless communication network from a telematics service provider, the request identifying the telematics unit; in response to the request, generating a deactivation command message for the telematics unit, the deactivation command message containing at least one replacement number; transmitting the deactivation command message from the system of the operator of the wireless communication network, through the wireless communication network to the telematics unit; receiving the deactivation command message in the telematics unit from the wireless communication network; responsive to the received deactivation command message, deleting a destination number used to determine a destination of a communication from the telematics unit through the wireless communication network when the telematics unit is active for wireless service and telematics service from storage in memory of the telematics unit; and storing a replacement destination number from the received deactivation command message, in the memory of the telematics unit in place of the deleted destination number, for use in a future attempt of the telematics unit to determine a destination of a communication from the telematics unit through the wireless communication network when the telematics unit is inactive with respect to communication service through the wireless communication network.