ZyXEL Communications V300 - Manual (Page 152)

Chapter 16 Troubleshooting
V300 User’s Guide
152
V
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.