Telecom billing is the group of functions of communications providers that are responsible to get consumption data, calculate charging and accounts receivable information, produce costs to customers, process their expenses and manage commercial collection agency. Telecom billing is a significant component regarding any commercial communications service agency regardless specialization: phone, mobile wireless transmission, VoIP companies, cell virtual network providers, internet service suppliers, transit traffic organizations, cable and satellite tv companies could definitely not operate without accounts receivable, because it makes an economic value of their business.