A billing data extraction and processing system for use in connection with a first billing system and a second billing system is disclosed. The billing data extraction and processing system includes a first input to receive rated billing data from the first billing system, a second input to receive rated billing data from the second billing system, and a data processing module, the data processing module responsive to the first input and to the second input, the data processing module processing the aggregated data extracted from at least one of the first and the second billing system. A first set of aggregated billing data at a first point in a billing period of the first billing system and a second set of aggregated billing data at a second point in the billing period of the first billing system are extracted and received at the first input. A first set of aggregated billing data at a first point in a billing period of the second system and a second set of aggregated billing data at a second point in the billing period of the second billing system are extracted and received at the second input.