Yealink VC400 Administrator's Guide

Configuring System Settings
183
Relog Offtime
The system will log out of the web user interface automatically after being inactive for a period
of time (default: 5 minutes). You need to re-enter the user name and password to login. You can
only configure the relog offtime via web user interface.
The relog offtime parameter is described below:
Parameter
Description
Configuration Method
ReLogOffTime
(1-1000min)
Configures the inactive time (in
minutes) before the system logs out
of the web user interface
automatically.
Default: 5
Web User Interface
To configure the relog offtime via web user interface:
1. Click on Setting->General.
2. Enter the desired time in the ReLogOffTime (1-1000min) field.
3. Click Confirm to accept the change.
Key Tone
You can enable the key tone feature for the system to make a keyboard click sound effect (key
tone) when pressing any key on the remote control. If you disable this feature or system ringer
volume is adjusted to 0, the system will not play a key tone when you press any key on the
remote control.
Key tone is configurable via the remote control or web user interface.
The key tone parameter is described below:

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