Lengrad CM7100 User Manual page 30

8. What is DDNS? Is it important for IP camera product to have DDNS support?
DDNS is an acronym for Dynamic Domain Name Service. It is important to choose an IP
network camera that has DDNS support for dynamic IP addresses. Chances are that the
network has a dynamic IP address (which changes with every log on). A DDNS service makes
sure that the camera's IP address always matches up to the current server address. DDNS
also allows a website to be linked to the IP camera that is constantly updated with the correct
information and has a reliable feed.
9. Why is Windows Media Player unable to play the recorded video files?
The CM7xxx uses the H.264 video codec. Windows Media Player may lack the proper
H.264 decoder to play the recorded video. Please download the Microsoft FFDShow H.264
decoder from http://sourceforge.net/projects/ffdshow-tryout/
10. How to use a cell phone to watch the CM7xxx video stream?
You must set the video resolution to QCIF to watch the CM7xxx video stream from a cell
phone. Make sure to set the bit rate to 64kbps to ensure the best video quality.
11. What Smartphone application should I use to view the video?
There are free application and paid version application for this, like: IP Cam Viewer.
12. Port forwarding
Two ports must be forwarded on your router to watch video from a GXV3672HD_FHD that
is located on a private network from a PC in a public network. The web port (HTTP) and
the RTSP port. Please make note that the RTSP port number changes according to the web
port. If the web port is 80, then the RTSP port is 554. If the web port is not 80, then the
RTSP port equals the web port +2000. For example, if the web port is 88, then the RTSP
port will be 2088.
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and install it.
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