... output.4. Support video,audeo,alarm,voice,serial data via TCP/IP and UDP/IP network transmission.5. SIP Communication Protocol, support ... frame/sec) and bandwidth according to network traffic.ProtocolSIP, TCP, UDP, DNS, DHCP, TELNET, HTTP, RTSP, RTP, UPNPAudio CompressionAMR, PCMU, AAC ... to control PTZ, and RS-232 used for two-way data transfer, supporting data rate up to 57600bps.I / O4 alarm in/1 ...