... /IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS (A record and SRV), DHCP, PPPoE, TFTP, NTP. 2)Dual 10 ... H.263 and H.264 (baseline) real-time video codec with video band-width from 32kbps – 1Mbps. 5)5.6in TFT ... conferencing, headset enabled, intercom, AES encryption. 300 degree voip video phone with USB port