9 COMPUTER SOFTWARE FOR USE IN THIRD PARTY BILLING APPLICATIONS IN THE TELECOMMUNICATIONS AND UTILITIES INDUSTRIES, NAMELY, COMPUTER CONVERGENT BILLING SOFTWARE FOR USE IN INTEGRATING CUSTOMER BILLING INFORMATION FROM MULTIPLE SOURCES AND IN GENERATING ONE OR MORE CONVERGENT CUSTOMER BILLS, AND COMPUTER CONVERGENT REVENUE ASSURANCE SOFTWARE FOR USE IN IDENTIFYING CUSTOMER UNDERBILLINGS AND OVERBILLINGS FROM SINGLE OR MULTIPLE SOURCES AND GENERATING CONVERGENT UNDERBILLING AND OVERBILLING REPORTS