We at JeraSoft have been developing billing solutions for communications operators for 12 years already, and more than a dozen of implementations have taken place over this period. An efficient and accurate billing system is necessary for most businesses that offer subscription-based services: Internet service providers, telecom providers (wholesale VoIP, SMS, OTT, MVNO, Retail VoIP, Mobile VoIP) and IoT providers, data centers, content service providers, cloud services and others.