Yealink VC400 - Changes for Release 22, Guide Version 22.5; Changes for Release 21, Guide Version 21.20; Changes for Release 21, Guide Version 21.15

User Guide for the VC400 Video Conferencing System
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Changes for Release 22, Guide Version 22.5
The following sections are new for this version:
 Remote Control via Web User Interface on page 20
 Meeting Blacklist on page 56
 USB Configuration on page 58
 Using Cloud Platform on page 127
Major updates have occurred to the following sections:
 Icon Instructions on page 14
 Setup Wizard on page 29
 Registration on page 33
 Idle Screen Display on page 34
 Call History Management on page 71
 Configuring Camera Presets on page 113
 Video Recording on page 116
 Screenshot on page 120
Changes for Release 21, Guide Version 21.20
The following sections are new for this version:
 Keyboard Input Method on page 37
Major updates have occurred to the following sections:
 Icon Instructions on page 14
 Setup Wizard on page 29
 Directory on page 59
 Bandwidth Settings on page 78
 Placing a Call Using the Remote Control on page 89
Changes for Release 21, Guide Version 21.15
The following sections are new for this version:
 Website Snapshot on page 51
 Hiding Icons in a Call on page 57
 Chairman-Mode Conference on page 91
 Auto Recording on page 119