| Standard and Protocol SupportCommunication: ITU-T H.323V4, SIP Video codec: ITU-T H.263/H. 263+/H.263++ (H.264 is ok in January, 2007). Audio codec: ITU-T G.711/G. 729/G.723.1A Network protocols: TCP/IP, DHCP, Telnet, DNS, PPPoE, RTP, NAT, UDP, RTP, RTCP, TFTP Bandwidth Support: 16kpbs--512kpbsNetwork interface: 10/100Base-T，2×RJ-45P S T N：1xRJ11Video input：CVBS PAL/NTSC(RCA) Video output：CVBS PAL/NTSC(RCA) Audio input：Line(RCA)Audio output：Line(RCA)Video Quality Video Resolution ：QCIP（176×144）/ CIF（352×288）Video frame rate：Maximum CIF 30FPSUse of video intensifying technologyUser of pre/post image processing technology Voice Quality Voice Active Detect(VAD) Comfort Noise Generation(CNG) Adptive Jitter Buffer | 
