Yealink VC400 Administrator's Guide

Administrator’s Guide for Yealink Video Conferencing Systems
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Dual-Stream Protocol
To enhance the process of communicating with others over video, the dual-stream protocol
provides the ability to share content from a computer, such as video clips or documentation.
Both the video and the documentation can be transmitted to the far site simultaneously, thus
meeting the requirements of different conference scenarios, such as training or medical
consultation.
The Yealink video conferencing system supports the standard H.239 protocol and BFCP (Binary
Floor Control Protocol). H.239 protocol is used when sharing content with the far site in H.323
calls. BFCP protocol is used when sharing content with the far site in SIP calls. Before enabling
the desired protocol, ensure that the protocol is supported and enabled by the far site you wish
to call. If the far site does not support the protocol for sharing content, MCU will automatically
mix the content and camera video, and send them in one channel. For more information on mix
sending, refer to Mix Sending on page 200.
Dual-stream protocol parameters on the system are described below.
Parameter
Description
Configuration Method
H.239
Enables or disables the H.239 protocol for
sharing content. You can configure it for the
StarLeaf Cloud platform or H.323 call
separately.
Default: Enabled
Web User Interface
BFCP
Enables or disables the BFCP protocol for
sharing content. You can configure it for
Zoom/Pexip/BlueJeans/Mind/Custom platform,
SIP account or SIP IP call separately.
Default:
For Zoom/Pexip/BlueJeans/Mind/Custom
platform and SIP IP call, the default value is
Enabled.
For SIP account, the default value is Disabled.
Note: You cannot configure it for the
Yealink/StarLeaf Cloud platform.
Web User Interface
To configure H.239 dual-stream protocol for StarLeaf Cloud platform via web user
interface:
1. Click on Account->VC Platform.
2. Select StarLeaf from the pull-down list of Platform Type.

Yealink VC400 Specifications

General

Optical zoom	18 x
White balance	Auto, Indoor, Outdoor
Focus adjustment	Auto
Video codecs	H.264, H.264, H.263
Supported video modes	1080p
Supported graphics resolutions	352 x 288, 704 x 576, 1280 x 720 (HD 720), 1920 x 1080 (HD 1080)
Voice codecs	G.711, G.711a, G.722
Line-in	Yes
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
ITU-supported standards	H.323
Ethernet LAN data rates	10, 100, 1000 Mbit/s
AC input voltage	100-240 V
Power consumption (max)	30 W

Weight and Dimensions

Depth	183 mm
Width	330 mm
Height	40 mm