A system for allocating communications resources for telematics communications includes a service provider, a gateway, a currently paired mobile device having at least first and second communications channels through which communication occurs to the service provider, sensing speed or acceleration of the mobile device based on internal data, detecting changes in speed or acceleration based upon the internal data, and determining that an event notification is to be sent to the service provider based upon the detected change in the speed or acceleration. A telematics device has at least a third communications channel through which communication occurs to the service provider. The telematics device and/or the mobile device determines which of the first, second, and third communications channels is to be used to communicate to the service provider and the respective one of the telematics device and the mobile device sends the event notification to the service provider.