Grandstream Wave - Manual (Page 58)

Firmware Version 1.0.1.21 Grandstream Wave User Guide Page 57 of 64
Note:

When Grandstream Wave is in an active call, turning on/off DND will not affect the current active call.
It will take effect on the next incoming call.

When the DND is on, users could view all the incoming calls in missed call history.
AUDIO SETTINGS
Table 10: Advanced Settings—Audio Settings Parameters
Noise
Reduction
Level
Grandstream Wave provides users with multiple
noise reduction levels, as shown in figure 46. Choose
the level according to the specific environment.
Output Gain It is used to adjust the output volume of Grandstream
Wave.
Figure 46: Reducing Noise Settings Screen