Multi-service Access Node, AC or DC power input with two slide-in slots for various DSL & Vo IP line modules. 12-port ADSL/ADSL2/ADSL2+ line module with a splitter built-in for MTU application. 8-port G.SHDSL or 16-port G.SHDSL.bis line modules with M-pair bonding feature for business applications 24-port Vo IP line module with SIP signaling protocol & MLT function support Line module cascading with fast ethernet uplinks 802.1p Qo S, priority queuing, 802.1q VLAN tagging & multicasting support 802.1x authentication, MAC/ Packet filtering & ACL