Yealink VC400 - Changes for Release 23, Guide Version 23.6; Changes for Release 22, Guide Version 22.15; Changes for Release 22, Guide Version 22.5

Administrator’s Guide for Yealink Video Conferencing Systems
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 Appendix B: Trusted Certificates on page 298
Changes for Release 23, Guide Version 23.6
The following section is new for this version:
 Registering a YMS Account on page 104
 Logging out of the Cloud Platform on page 122
 Sharing Content on page 157
 Using the API with a LAN Connection on page 244
 Using the API with a Serial Connection on page 245
Major updates have occurred to the following sections:
 Intelligent Firewall Traversal on page 90
 Default Layout on page 161
Changes for Release 22, Guide Version 22.15
The following section is new for this version:
 Logging into the StarLeaf Cloud Platform on page 106
Major updates have occurred to the following sections:
 H.323 Tunneling on page 73
 Enabling H.460 Support for H.323 Calls on page 135
 Methods of Transmitting DTMF Digit on page 138
 Dual-Stream Protocol on page 196
 Camera Control Protocol on page 212
 H.235 on page 263
Changes for Release 22, Guide Version 22.5
The following sections are new for this version:
 Virtual Remote Control on page 165
 Auto Dialout Mute on page 152
 Meeting Blacklist on page 187
 USB Configuration on page 218
 Upgrading VCC20 Camera Firmware on page 270