Yealink VC400 Administrator's Manual page 40

Administrator's Guide for Yealink Video Conferencing Systems
Item
④
Blue Shortcut Key
⑤
Vol+
⑥
Vol-
⑦
Zoom out Key
⑧
Zoom in Key
⑨
OK Key
⑩
Navigation Key
⑪
Mute Key
⑫
Home Key
⑬
Video Source Key
⑭
Off-hook Key
⑮
Delete key
⑯
On-hook Key
24
Located at the bottom right of the screen. Label automatically
identifies context-sensitive features.
In the idle screen, this is used to save and check the camera
preset position, and corresponds to the Preset soft key.
Increases the system volume.
Decreases the system volume.
Decreases the camera zoom or the captured image

magnifications.
Behaves as page down in a multiple page list.

Increases the camera zoom or the captured image

magnifications.
Behaves as page up in a multiple page list.

Confirms actions or answers incoming calls.
In the menu screen, press

press or to select items.
In the idle screen, pan and tilt the camera to adjust the

viewing angle.
Toggles the mute feature.
Returns to the idle screen when in the menu screen.

Enters the pre-dialing screen during a call.

Switches the input source between Camera, Camera-PC, or
PC.
Enters the pre-dialing screen.

Places a call.

Answers a call.

Deletes one character at a time.

Long press to delete all characters in the input field.

On the idle screen or during a call, long press it for 2

seconds to start capturing packets and long press it for 2
seconds again to stop capturing packets.
Ends a call or exits from a conference call.

Returns to the previous screen when not in a call.

Description
or to switch menus,