The KNTD-100 IP PBX appliance is designed to bring leading edge voice, video, data, and ability features to enterprises, small and medium businesses, retail and residential environments in an easy-to-manage fashion. This enterprise-grade on premise IP PBX supports E1, T1 and J1 networks and offers scalability by supporting up to 100 users. This secure and reliable IP PBX delivers unifed communication features at an unprecedented price point it hout any licensing fees, costs-per-feature, or recurring fees.Select ippbx telephone system, you do not need to deploy the phone line, can quickly multicast, system high security attack, intelligent office communication.