Analog Voice – 16 FXS Ports via 50-pin Amphenol w/Lifeline FXO. Digital Voice - PRI, T1 CAS Support, Signaling Methods: E&M Wink, E&M Immediate; Feature Group D, RJ-48C. Ethernet Connectivity - Three Ethernet Interfaces (WAN/LAN Support): One Gigabit, Two Fast; Full Duplex, RJ-45, Supports 802.1q VLAN Trunking. Warranty - Five Years (North America). Power Supply - Dual AC/DC power supply (Optional battery backup). QoS - Low Latency and WFQ, Hierarchical QoS, DiffServ packet marking and recognition, Frame Relay Fragmentation, Traffic Monitoring (NetFlow 9). T1 - Quad T1/FT1, RJ-48C. USB - One Interface.
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