Settings/H.323/Codec - Grandstream Networks GVC3210 Administration Manual

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Register
Expiration (Min.)
H.323 Local Port
Symmetric RTP

Settings/H.323/Codec

Parameters
DTMF
Preferred
Vocoder
H.264 payload
type
H.264 image size
Video bit rate
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This specifies the frequency (in minutes) in which the device refreshes its registration
with the specified registrar. The default value is 60 minutes (1 hour). The maximum
value is 1440 minutes (1 day). The minimum value is 1 minute.
This defines the local H.323 port used to listen. Default value is 1720.
It is used to enable the symmetric RTP mechanism. If set to "Yes", the GVC3210 will
use the same socket/port for sending and receiving the RTP messages. The default
setting is "No".
Descriptions
This parameter specifies the mechanism to transmit DTMF digits. There are 3
supported mode: In audio, RFC2833 and H245 signal.
PCMA, PCMU, G.722 and G.722.1 are supported on the device for the H.323 account.
Users can select the vocoder from the "Available" list to "Selected" list, and configure
the vocoder priority by adjusting the order in the "Selected" list. The "Selected"
vocoders will be included in the SDP message with the same order.
It is used to configure the H.264 codec message payload type format. The default
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
 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.

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.

H.264 Image Size = 4SIF/4CIF/VGA, the Video Bit Rate can be set to a value from
384 to 1024 Kbps.
GVC3210 Administration Guide
Version 1.0.1.21
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