NFON is a company providing cloud-based telephone systems and services via Cloud PBX (private branch exchange) to business customers. It offers Cloudya, a product based on a homogenous tariff model that covers the core functions associated with a telephone system, such as telephone conference facilities, and automatic call forwarding (ACF). The company also sells end devices (telephones, soft clients for PCs and smartphones) and the corresponding software and provides internet access on a reselling basis.