Snom C300 Quick Start Manual page 10

C300 Quick Start Guide
End all calls
Press .
Volume
• Press briefly to increase listening volume by one step.
• Long-press to increase listening volume continuously.
• Press briefly to decrease listening volume by one step.
• Long-press to decrease listening volume continuously.
The respective circle LEDs turn blue for two seconds to indicate the volume level. The more LEDs
turn blue, the higher the volume level.
The C300 will synchronize playback volume with a USB-connected Windows PC, or a Bluetooth-
connected iPhone or Android phone.
The C300 will synchronize phone call audio volume with a Bluetooth-connected iPhone or Android
phone.
Mute
• Press to mute all six microphones. The circle LEDs turn red.
• Press again to unmute the microphones.
• Press while the speakerphone is ringing to temporarily mute the ringing tone.
Connecting a headset
To ensure privacy during a phone call, you can connect a headset to the 3.5mm jack of the C300.
The audio will be played through the headset.
Charging
Charging the battery of the C300
1. Plug the USB cable into the USB type-C port on the speakerphone.
2. Plug the other end of the USB cable into the USB type-A port of a power source (for example, a
PC). While the C300 is charging, its power LED indicator flashes white. If the power LED is red,
the battery is charging but the battery level is too low for the device to power up.
10