Settings/H.323/Call - Grandstream Networks GVC3200 Administration Manual

vocoders will be included in the SDP message with the same order.
H.264 payload It is used to configure the H.264 codec message payload type format. The default
type setting is 99. The valid range is from 96 to 127.
It is used to set the H.264 image size. It can be selected from the dropdown list.
• 1080P
• 720P
• 4CIF
H.264 image size
• 4SIF
• VGA
The default setting is 1080P.
It is used to configure the bit rate of the video device. The default setting is 2048kpbs.
It is recommended to increase bit rate if bandwidth allows. If the bandwidth is not
enough, the video quality will be reduced.
•
Video bit rate
•
H.264 Image Size = 4SIF/4CIF/VGA, the Video Bit Rate can be set to a value from
384 to 1024 Kbps.
It is used to configure the video frame rate. The supported video frame rates are 5 fps,
Video frame rate
15fps, 25 fps, 30 fps and VFR. The default setting is "30 fps".

Settings/H.323/Call

Parameters Descriptions
If set to "Yes", the device will automatically turn on the speaker to answer incoming
Auto-Answer
calls after a short reminder beep. The default setting is "No".
Enable H225
If enabled, the device will only send H255 keep-alive as callee and the interval is 19
Keep-alive seconds. The default setting is "No".
Enable H245
If enabled, the device will send H245 keep-alive packet as caller or callee, and the
Keep-alive interval is 19 seconds. The default setting is "No".
If enabled, the device will send RTDP (roundTripDelayRequest) packet as H245 keep-
alive packet every 10 seconds. The timeout interval is 30 seconds and will hang up
Enable RTDR
the call once timed out. The default setting is "No".
Note: If enabled, it may cause incompatibility issue with certain devices.
H.264 Image Size = 1080p, the Video Bit Rate can be set to a value from
2048kbps to 4096kbps.
H.264 Image Size = 720p, the Video Bit Rate can be set to a value from 1024kbps
to 2048kbps.
GVC3200/3202 Administration Guide
Version 1.0.3.64
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