ZyXEL Communications V300 User Manual
Page 152
Chapter 16 Troubleshooting
V300 User’s Guide
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The incoming or outgoing audio is too quiet or too loud.
or
I cannot hear the V300’s ring when a call is incoming.
Use the VOLUME keys to increase or decrease the volume.
• When no audio device (the handset, speakerphone or an external headset) is active, the
VOLUME keys control the ringing volume.
• When an audio device is active, the VOLUME keys control the input and output of that
device.