Yealink VC400 Administrator's Guide

Administrator’s Guide for Yealink Video Conferencing Systems
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Account Polling
When you dial account numbers of other system, account polling feature enables your system
to use different call types according to this priority: Cloud platform>H.323 account>SIP account.
If you cannot call other systems using all your registered accounts, then this call fails.
Account polling is disabled by default. When you register multiple accounts (2 or more) for your
system, you can enable account polling feature. You can configure account polling feature via
web user interface only.
Account polling parameter on the system is described below:
Parameter
Description
Configuration Method
Account Polling
Enables or disables the account
polling on the system.
 Disabled—the system can only
call other system’s account
using the call type with the
highest priority (Cloud
platform>H.323 account>SIP
account).
 Enabled—the system will
attempt to call other system’s
account using different call
types according the priority
(Cloud platform>H.323
account>SIP account).
Default: Disabled
Remote Control
Web User Interface
To configure account polling via web user interface:
1. Click on Setting->Call Features.

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