... port registration •By device registration(share account) •Support IP trunk and IP trunk group •Two 183 mode •Response code switch •All ... Console RFC2833 •Static IP, PPPoE, DHCP •Network Protocol Support: •IP,TCP, UDP,TFTP, FTP, RTP, RTCP, ARP,RARP,ICMP Ping, NTP, SNTP, ... modify •Factory reset •Output CDR/Tracking newsby syslog •Ping and Tracer test on web •Traffic statistics: TCP,UDP,RTP •VoIP ...