Yealink VC400 User Manual (English)

Other manuals for Yealink VC400

User Guide171 pages

Guide18 pages

Quick Start Guide16 pages

Questions and Answers:

S
Sandra RomanSep 9, 2025
Why does my Yealink Conference System fail to call the far site?
- R
  Richard HowardSep 9, 2025
  If your system fails to call the far site, verify the network availability of both the local and far sites. Also, check if the far site has enabled the DND (Do Not Disturb) feature or has reached its maximum call-in limitation. Ensure the accounts are registered correctly and that the system uses the appropriate account to call the far site, and confirm that the number you're calling is correct. Also, verify that the far site isn't rejecting your call and that the firewall isn't blocking inbound traffic from the other site. If your local site uses encryption, ensure the far site enables encryption, too. Finally, ensure that the far site supports the same call protocol as the local site.
J
Jacob GrantSep 8, 2025
Why is the display device black on my Yealink VC400 Conference System?
- D
  Douglas ArellanoSep 9, 2025
  If the display device is black, check the connection between the display device and the VC400/VC120 Codec. It may also be that the system or the display device is in sleep mode. Press any key on the video conferencing phone or the remote control to resume system operation or press the power button on the remote control or on the display device. Also, verify that you have selected the correct video input source; try switching the video input source.
P
Paul JonesSep 7, 2025
Why does the far-site display a black screen when I start a presentation on my Yealink VC400 Conference System?
- K
  Kathleen HowardSep 8, 2025
  If the far site displays a black screen when you start a presentation, you can disable the network adaptive feature. This will force the system to send packets to the negotiated address rather than the actual address.
C
Charles Howard IISep 7, 2025
Why can't I start a presentation on my Yealink VC400 Conference System?
- S
  Sheena FoxSep 7, 2025
  If you can't start a presentation, check if a PC is connected to the VC400/VC120 codec and whether the PC is sending a signal. Also, check the call statistics to see if the system is already sharing content and ensure that dual-stream is configured correctly.
D
Desiree McbrideSep 6, 2025
Why can't I view the menu on my Yealink VC400 Conference System?
- H
  Heather WatersSep 6, 2025
  Check whether the Display1 port of VC400/VC120 codec is connected to the HDMI port on the display device.
A
Andre HayesSep 5, 2025
Why does my Yealink Conference System fail to call the far site via IP address?
- S
  samantha78Sep 5, 2025
  If the system fails to call the far site via IP address, ensure that at least one call protocol is enabled on both sites and that the network is connected and configured correctly. You can also ping the IP address of the far site to test connectivity; if it fails, contact your system administrator.
D
Dwayne GuzmanSep 4, 2025
Why can't I hear the other site clearly on my Yealink VC400 Conference System during a call?
- L
  Linda BrennanSep 4, 2025
  If you can’t hear the other site clearly, ensure that their speaker volume is not set too low. Muffled audio may be due to highly reverberant rooms. Adjust the priority order for your audio codec, especially if a low-bandwidth codec is first. For best results, ensure the caller uses a Yealink video conferencing system. Dust and debris may also affect audio quality.
J
James RoseSep 3, 2025
Why can't I adjust the remote camera during a call on my Yealink VC400 Conference System?
- J
  Jackson NealSep 3, 2025
  If you can't adjust the remote camera during a call, use the remote control to control the local camera to ensure it functions normally. Confirm that the far site has enabled the Far Control Near Camera feature and that you are attempting to control the remote camera. Also, ensure the far site supports the same call protocol as the near site.
K
Kristen ParkerSep 2, 2025
How to fix incorrect time and date on my Yealink VC400 display?
- M
  Marvin CobbSep 2, 2025
  If the display device doesn't show the correct time and date, and the system is set to obtain them automatically from an NTP server, verify that the SNTP server and time zone are correctly configured and that the connection between the system and the NTP server is working. If the time and date are configured manually, ensure they are set correctly.
W
washingtonrodneySep 1, 2025
How to adjust the camera angle and focus on my Yealink VC400 Conference System?
- V
  Vincent BruceSep 1, 2025
  To adjust the camera angle and focus, ensure you are doing so when the system is idle or during a call. Check the remote control batteries are working, installed correctly, and aim it at the sensor without obstructions. Confirm the camera's LED flashes green when using the remote. Make sure you are controlling the local camera. If issues persist, reboot the system or consider the remote may be broken.

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