Yealink VC110, Administrator'S Manual

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Administrator‘s Guide for Yealink VC110 Video Conferencing Endpoint
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Ensure that the local audio output device is connected correctly.
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Use audio diagnose to check whether the audio device is working normally.
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Ensure that the ringer volume is not set to the minimum.
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Check whether the far site is muted.
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Ensure that the local audio input device is connected correctly.
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Check whether the near site is muted.
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Check whether the endpoint has enabled the auto answer mute feature.
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Ensure that the speaker volume of the far site is not set too low.
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Muffled audio reception from the far side may be caused by highly reverberant
rooms. Speak in close proximity to the phone.
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Adjust the priority order for your audio codec if you have chosen a low-bandwidth
audio codec to be first. For more information, refer to
Audio Codecs on page 124 .
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For best results, ensure that the caller is using a Yealink VC110 video conferencing
endpoint. Audio quality from your VC110 video conferencing endpoint will vary
when calling a non-Yealink endpoint. For more information, refer to
Video Size
Mode on page 136 .
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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.
Users may receive poor voice quality during a call, such as intermittent voice, low
volume, echo or other noise. It is difficulty to diagnosis the root causes of the voice
anomalies. The possible reasons are:
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Users sit too far from or near to the microphone.
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The audio pickup device is moved frequently.
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Intermittent voice is probably caused by voice packet loss or jitter. Voice packet