AVer FD1020 user manual - Manual (Page 43)

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RTSP Port: setup port for RTSP transmitting (Default: 554)
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RTP Start and End Port: in RTSP mode, you may use TCP and UDP for connecting. TCP
connection uses RTSP Port (554). UDP connection uses RTP Start and End Port.
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Security: Yes is required account and password to connect with this IP camera through ONVIF
protocol. No is not required account and password to connect.
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RTSP Keepalive: To keep connection until remote site disconnects it.