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GXV3662 IP Camera
9. What is DDNS? Is it important for IP surveillance 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 for a website to be linked to the IP camera that is
constantly updated with the correct information and has a reliable feed.
10. Why is Windows Media Player unable to play the recorded videos files?
The GXV-3662 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/
and install it.
11. Alarm Triggered Events do not work in GSurf.
Please double check the Alarm Action on your GXV-3662. Login to the web GUI of the
GXV3662, go to the Motion Detection or Alarm Events page, and make sure option Upload to
Alarm Center is checked.
12. It is recommended that you save your video files in different directories when
using GSurf and GS_NVR.
GSurf and GS_NVR are different programs that have the ability to delete recorded video files.
It is better to save video files in different directories when using GSurf and GS_NVR in the
event that they automatically delete files that you might want to keep.
13. How can I use a cell phone to watch the GXV3662 video stream?
You must set the video resolution to QCIF to watch the GXV3662 video stream from a cell
phone. Make sure to set the bit rate to 64kbps to ensure the best video quality.
14. Why doesn't the IP address of the device reset when I click the "Restore" button on
the Maintenance page?
The GXV3662 could be installed in areas that are not easy to access. For example, it could
be installed on the roof of a building or the ceiling of an office. This makes it difficult to
reinstall the device, therefore the ―Restore‖ function will not clear the IP address. Press the
RESET button on the device for at least 6 seconds until you hear a beep to perform a factory
reset of all parameters (including the IP address).
15. Why can't the live video stream be viewed using a mobile phone or GSurf after
changing the HTTP Port of the device?
Make sure that the RTSP port of the device is set to 2000 plus the HTTP Port number. For
example, if the HTTP port is 88, then the RTSP port of the device that you configured on
GSurf / mobile phone should be 2088.
Firmware 1.0.1.22
Page 34 of 36
Grandstream Networks, Inc. 03/2011
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