Polycom 400 ユーザーズマニュアル

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Basic Phone Features
Polycom Telephone User Guide
621-00000092
Speakerphone Troubleshooting
Problem
Solution
You can’t hear callers on the 
speaker.
Increase the speaker volume.
Callers can’t hear you when 
you use the speakerphone.
Make sure nothing is blocking the mic., 
which is located on the left side of the 
telephone under the handset cradle.
Move closer to the microphone and face 
the microphone when speaking.
The caller’s voice echoes.
Decrease the speaker volume.