Troubleshooting
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Ensure that the PC is turned on.
Ensure that the VCH50 video conferencing hub is not broken.
Contact your administrator for help.
Video & Audio Issues
Why can’t I hear the audio during a call?
Ensure that the system has selected an available audio output device.
If you select
VCS Phone
as the audio output device, ensure that the CP960 conference
phone is connected to the VC800 codec, and LED indicators on the phone illuminate solid
green.
Ensure the proper volume level on the system.
Ensure that the microphone on the remote system is not muted.
Why can’t I hear a ring tone when receiving a call?
Ensure that the system has selected an available audio output device.
If you select
VCS Phone
as the audio output device, ensure that the CP960 conference
phone is connected to the VC800 codec, and LED indicators on the phone illuminate solid
green.
Ensure that the ring volume is not set to 0. If it is, the icon will appear on the status
bar of the display device, and the icon will appear on the CP960’s touch screen.
Adjust the ring volume when the system is idle via the remote control or CP960 conference
phone. For more information, refer to
on page
Ensure that the microphone of the remote system is not muted.
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.
Adjust the priority order for your audio codec if you have chosen a low-bandwidth audio
codec to be first.
For best results, ensure that the caller is using a Yealink video conferencing system. Audio
quality from your video conferencing system will vary when calling a non-Yealink system.
Dust and debris may cause audio quality. Do not use any kind of liquid or aerosol cleaner
on the phone. A soft, slightly damp cloth should be sufficient to clean the top surface of
the phone if necessary.
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