Patent ID: 8442555

Claim:
A method comprising: receiving communicated call records from a plurality of vehicles, wherein each of the call records includes at least a geographic location of the respective vehicle when transmission of the call record was attempted; aggregating indications of successful and unsuccessful call record communication attempts by geographic area as determined from the geographic location of the vehicles indicated in the respective call records; determining a call success rate level for each of the geographic areas based on the aggregated indications of successful and unsuccessful call record communication attempts; and presenting a geographic map inclusive of a plurality of the geographic areas, and distinguishing the relative call success rate levels of the plurality of the geographic areas; wherein receiving the call records comprises: receiving the call records associated with the successful call record communication attempts in substantially real time in response to the respective vehicles having moved into an operable network area from a defective network area that caused the unsuccessful call record communication attempts; and receiving the call records associated with the unsuccessful call record communication attempts by way of their inclusion in successful call record communication attempts.