Features 1 optical ports 10/100M-FX4 ports 10/100M-TX – LAN/IPTV2 ports FXS – VoIP2 ports USB for application development High-speed Internet. IPTV: TV resolution. VoIP: IP phone technology …* Provides 4 port 10/100Mbps TP LAN firewall can be connected to PC and make IPTV Set Top Box, VOD, E-Learning, 3-D gamingInternet and traditional Internet applications such as web browsing, e-mail and download files. Two FXS ports for SIP or H323 protocolscan tell us VoIP services with cost effective and future specification. * VRG-21412-WF is fully compatible with IEEE 802.3 and 802.3u standards. The process of installation and operation is simple andsmooth. Standard SNMP management and Web-based management to VRG-21412-WF is the best choice for network managers