R28 Door Phone Administrator Guide
Parameter Set-up:
•
Enabled: enable the Mjpeg service.
•
MJPEG Authorization: tick it to access device video or real-time screenshots through
a browser (http address such as: http://device IP:8080/video.cgi (dynamic video),
http://device IP:8080/jpeg.cgi (static screenshot) ).
•
Video Resolution: select video resolutions among seven options: QCIF, QVGA, CIF,
VGA, 4CIF, and 720P. The default video resolution is 4CIF. And the video from the
door phone might not be able to be shown on the indoor monitor if the resolution is
set higher than 4CIF.
•
Video Framerate: 30fps is the video frame rate by default.
•
Video Quality: the video bitrate is from 50 to 90.
16.2.1
NACK
NACK (Negative Acknowledgement) is used to ensure smooth and continued data
transmission for the video call. To enable NACK, navigate to Phone > Call Feature >
Others.
Parameter Set-up:
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