R20 series supports H264 standard, which provides better
video quality at substantially lower bit rates than previous
standards.
Codec Resolution: R20 series 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.
To configure RTP audio video profile for DTMF and its payload
type.
Type: Support Inband, Info, RFC2833 or their combination.
How To Notify DTMF: Only available when DTMF Type is
Info.