Yealink SIP-T58V/A User Manual

Configuring Video Features
663
2. Select the desired value from the pull-down list of Video Active.
3. Click Confirm to accept the change.
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 IP 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 SIP-T58V/A phone model:
Name
MIME Type
Bit Rate
Frame Rate
Frame Size
H.264 BP
H264/90000
90 kbps to
2048 kbps
5 fps to
30 fps
Tx: CIF, 360P, W448P,
720P
Rx: Conventional Size
Below 720P
H.264 HP
H264/90000
VP8
VP8/90000
128kbps to
2048 kbps

Yealink SIP-T58V/A Specifications

General

Brand	Yealink
Model	SIP-T58V/A
Category	IP Phone
Language	English