Yealink VC400 Administrator's Guide

Administrator’s Guide for Yealink Video Conferencing Systems
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Ringback Timeout
Ringback timeout defines a specific period of time within which the video conferencing system
will cancel the dialing if the call is not answered.
The ringback timeout parameter on the system is described below:
Parameter
Description
Configuration Method
Ringback Timeout
(30-240)
Configures the duration time (in
seconds) in the ringback state.
Default: 200
If it is set to 200, the system will
cancel the dialing if the call is not
answered within 200s.
Web User Interface
To configure ringback timeout via web user interface:
1. Click on Setting->Call Features.
2. Select the desired value from the pull-down list of Ringback Timeout(30-240).
3. Click Confirm to accept the change.

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