Yealink VC Series Administrator's Guide

Troubleshooting
161
 Check whether the network is available and the LED indicator on the left of the
Internet port illuminates green.
 Try to use the low speed connection to check whether packets are lost. Deficient
bandwidth is an important reason for packet loss.
 Check the configuration of the network speed and duplex mode on the system,
switch and router.
 You can adjust the camera when the system is idle or during a call. The he camera
cannot be adjusted when the system is in the menu screen.
 Ensure that the batteries in the remote control are in good working condition, and
installed correctly.
 Aim the remote control at the sensor when operating the unit.
 Ensure that no objects are obstructing the sensor on the front of the camera.
 Ensure that the LED on the front of the camera flashes red when you use the remote
control to operate the unit.
 Ensure that what you are controlling is the local camera.
 Reboot the system.
 If the above suggestions cannot solve your problem, perhaps the remote control is
broken. You can contact your system administrator for help.
 Use the remote control to control the local camera to check whether the remote
control can be used normally.
 Ensure that the far site has enabled the Far Control of Near Camera feature. For
more information, refer to Far Control of Near Camera on page 107.
 Ensure that what you are controlling is the remote camera. Select More->Near/Far
Camera during an active call and then select the remote video image.
 Ensure the far site supports the same call protocol as the near site. For more
information, refer to Camera Control Protocol on page 109.

Yealink VC Series Specifications

General

Brand	Yealink
Model	VC Series
Category	Conference System
Language	English