IPAM-4800/4824 IP DSLAM has 48/24 ports subscriber line interface with POTS splitter built-in achieved 1U height space saving design. IPAM-4800 came with unique bandwidth management, flow prioritization and data flow security control key feature. IPAM-4800 provided QoS (quality of service) capability to meet triple play (voice, data, video) requirement, support ADSL/ADSL2/ADSL2+ interface, stackable up to 8 IPAM-4800 can be cascaded. No matters in features, performance, and cost wise, IPAM-4800 is the best choice for NSP (network service provider).