Grandstream Networks GXV3140 Application Manual page 36

Enable Motion
Detection
Video frame rate
Video bit rate
Video Packet Size
Video Rate Control
Video Frame Skipping
I-Frame Reference
Only
Packetization-Mode
Redundant P-frame
Adaptive MB Intra
Refresh
Video Packet Loss
Rate
Grandstream Networks, Inc.
The phone will exit idle/screensaver mode if motion is detected. The default
setting is Yes.
The Default value is 15 frames/second. The video frame rate is adjustable based
on network conditions.
Increasing the frame rate will increase the amount of transferred data
significantly therefore consuming more bandwidth. Lack of bandwidth will impair
the video due to packet loss.
The Default value is 128 kbps. The video bit rate is adjustable based on network
conditions.
Increasing the video bit rate may improve video quality if the bandwidth permits.
Otherwise the video quality will be impaired due to packet loss
The Default value is 1400, range from 100 to 1400.
It is recommended to use 600~800 if you have an Outbound Proxy or Media
Gateway.
Frame, TMN8 or GOP . The Default setting is Frame.
TMN8 is good for bandwidths larger than 384kbps
Skips bad video frames as they are received
The Default setting is No.
When enabled, all P frames will only have reference to previous I frames. This
method may improve video quality when the network has heavy packet loss. It
will have modest increase in bandwidth usage. The Default setting is No.
The packetization mode (0 or 1) for the H.264 video packets. The default setting
is 0.
This setting allows the phone to send redundant P-frames of I frames. When an I
frame is delayed or has packet loss, the redundant P-frames will be used
instead. It may make video phone call less prone to errors and thus make the
video stream more robust towards error propagation, but may increase
bandwidth usage. The default setting is set to No.
This parameter specifies whether Adaptive MB Intra Refresh is used or not. It
may protect most important MBs (macro blocks) subjected to packet loss and to
avoid error propagation. The intra-refresh rate is adapted according to the video
packet loss rate. It may increase bandwidth usage. The default setting is set to
No.
Specifies the phone video packet loss rate for the Adaptive MB Intra Refresh.
Users can choose from: Less than 5%, Less than 10%, Less than 15%, Less
than 20%, Less than 25%. The default setting is set to Less than 10%.
GXV3140 USER MANUAL
FIRMWARE VERSION 1.0.3.10
Page 36 of 117
Updated : 12/2009