... DDNS, 802.1p, TFTP, TelnetConfiguration/ManagementWEB GUIConfiguration, firmware upgrade, status monitoring, log downloadingEMSTR069/TR104/TR106,SNMPv2,Telnet,TFTP,HTTPAuto ProvisioningAuto configure ... chassis, 2U, 2 10/100M Base-T, 1 RS232 console, 4 line card slots, AC. With 24 concurrent lines ... control chassis, 2U, 2 10/100M Base-T, 1 RS232 console, 4 line card slots, AC. With 72 concurrent lines ...