Video Codecs - Yealink VP59 Administrator's Manual

512-512kb/s
640-640kb/s
768-768kb/s
1024-1024kb/s
1280-1280kb/s
1500-1500kb/s
2000-2000kb/s
Default
0
Supported
All phones except CP960
Devices
Web UI Settings > Video > Video Call Rate
Parameter sip.h264.peer_resolution.default
Description It configures the default video resolution if other party doesn't specify the resolution in H264 packet.
0-CIF
1-4CIF
Permitted
Values
2-720P
3-1080P
Default 2
Supported
All phones except CP960
Devices
[1]
If you change this parameter, the phone will reboot to make the change take effect.

Video Codecs

CODEC is an abbreviation of COmTap-DEComTap, capable of coding or decoding a digital data stream or signal
by implementing an algorithm. The object of the algorithm is to represent the high-fidelity video signal with minimum
number of bits while retaining the quality. This can effectively reduce the frame size and the bandwidth required for
video transmission.
The video codec that the phone uses to establish a call should be supported by the SIP server. When placing a call,
the phone will offer the enabled video codec list to the server and then use the video codec negotiated with the
called party according to the priority.
RTPmap
Codecs and priorities of these codecs are configurable on a per-line basis. The attribute "rtpmap" is used to define
a mapping from RTP payload codes to a codec, clock rate and other encoding parameters.
The following table lists the video codecs supported by VP59/T58A phone model:
<y0000000000xx>.cfg
Video Features
390