Cisco DPQ3925 8x4 DOCSIS 3.0 Residential Gateway Modem with EDVA Voice (NO WIFI) 8x4 DOCSIS 3.0 Cable Modem with Embedded Digital Voice Adapter Wired & Wireless Gateway with advanced VOIP Features Has 2 VOIP/Phone ports, 4 ethernet ports, USB port, and Cable/BNC interface Battery slot for optional backup battery (battery not included) Other features include built-in power, power cord, ethernet cable, and documentation CD