User`s manual
10. View Size: selects the size of the image 
Select the size of the image from 0.5 to 4 times. 
Select an image size 
11. Streaming: sets the video stream protocol (HTTP is recommended) 
The product provides three different video streaming protocols: UDP, TCP, and 
HTTP. HTTP is the most recommended because it allows the video stream to go 
through the firewall. (Refer to Setting/Basic Setting/Network/Streaming for more 
information). 
UDP:  It provides the fastest but unreliable transmission service. Video steams are 
transmitted thought UDP Port (50000~60000 by default) to ensure the 
fastest image transmission. However, video fragment or mosaics may occur 
due to poor transmission quality.   
TCP:  It provides reliable data transmission. Video steams are transmitted through 
RTSP Port (554 by default) to avoid video fragment or mosaics due to poor 
transmission quality. 
HTTP: Video streams are transmitted through HTTP Port (80 by default) to ensure 
going through firewalls. 
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