Yealink VC800 Administrator's Manual

Also see for MeetingSpace VC500: Administrator's guide Administrator's guide Administrator's guide Administrator's guide Quick configuration guide

Troubleshooting255Why can’t adjust the remote camera during an active call? Use the remote control to control the local camera to check whether the remote controlcan be used normally. Ensure that the far site has enabled the far-end camera control feature. For moreinformation, refer to Far-end Camera Control on page 181. Ensure that you are controlling the remote camera. Press , and then selectOther->Near/Far Camera during an active call and then select the remote video image. Ensure that the far site supports the same call protocol as the near site. For moreinformation, refer to Camera Control Protocol on page 182.Why is the video quality bad? Ensure that the display device has suitable resolution. Check whether the packet has been lost. For more information on packet loss, refer toViewing Call Statistics on page 250. Ensure that camera settings are configured correctly, such as brightness and white balance. Avoid high-intensity indoor light or direct sunlight on the camera.Video & Audio IssuesWhy can’t I hear the audio during a call? Ensure that the local audio output device is connected correctly. Use audio diagnose to check whether the audio device is working normally. Ensure that the ringer volume is not set to the minimum. Check whether the far site is muted.Why can’t the far site hear the local audio? Ensure that the local audio input device is connected correctly. Ensure that speakers are not obscured or damaged. Do not stack items on top of theCP960 conference phone. Check whether the near site is muted. Check whether the system has enabled the auto answer mute feature. Check whether the system has enabled the auto dialout mute feature.Why can’t I hear the other site clearly during a call? Ensure that the speaker volume of the far site is not set too low. Muffled audio reception from the far side may be caused by highly reverberant rooms.Speak in close proximity to the phone.