Grandstream Networks GXV3500 User Manual page 80

6. Why does IE indicate to install Grandstream Video Viewer add-on after a firmware
upgrade? The add-on was properly installed before the firmware upgrade process.
New firmware will often upgrade the add-on as well. To watch the live video stream, you must
install the newest version of the add-on.
7. How do you watch secondary video stream?
Login to the home page of the GXV3500 web GUI, click Play to watch the video stream. To
watch a secondary video stream, right click on the video, and select Secondary Stream on the
pop-up menu. Try reinstalling the Grandstream Viewer add-on for IE if you cannot see the
video stream.
8. 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 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 GXV3500 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. Alarm Triggered Events do not work with GSurf_Pro?
Please double check the Alarm Action on your GXV3500. Login to the web GUI of the
GXV3500, go to the Motion Detection or Alarm Events page, and make sure option Upload to
Alarm Center is checked.
11. Recommended to save the video files in different directories when using GSurf_Pro?
It is better to save video files in different directory to prevent accidental deletion of the
recorded files you need.
12. How to use a cell phone to watch the GXV3500 video stream?
You must set the video resolution to QCIF to watch the GXV3500 video stream from a cell
phone. Make sure to set the bit rate to 64kbps to ensure the best video quality.
13. What Smartphone application should I use to view the video?
There are free applications and paid version application for this, you can find them in Google
Play for Android phone and Apple Store for iPhone, like: IP Cam Viewer:
http://hit-mob.com/
Grandstream Networks, Inc. GXV3500 User Manual
Firmware Version 1.0.1.94
and install it.
Page 80 of 82
Last Updated: 05/2016