26
R20A
Admin Guide
Audio Codec:
R20A supports four audio codecs
:
PCMA, PCMU,
G729, G722. Different audio codecs require different bandwidth,
users can enable/disable them according to different network
environment.
Note: Bandwidth consumption and sample rates are as below:
Codec
Bandwidth
Sample Rates
PCMA
64kbit/s
8kHz
PCMU
64kbit/s
8kHz
G729
8kbit/s
8kHz
G722
64kbit/s
16kHz
Video Codec:
R20A supports H.264 standard, which provides
better video quality at substantially lower bit rates than previous
standards.
Codec Resolution:
R20A supports four resolutions
:
QCIF, CIF,
VGA, 4CIF and 720P.
Codec Bitrate:
To configure bit rates of video stream.
Codec Payload:
To configure RTP audio video profile.
Figure 4.2.4-1 SIP call related codec
Figure 4.2.4-2 Multicast related codec
Figure 4.2.4-2 Video codec setting
