If PTT/Paging button is customized by the administrator to be Mute/Unmute, users can press the Multi-function button to
Mute/Un-mute the MIC during calls.
Adjusting Speaker and Earpiece Volume
Press volume up and down keys on the left side of your phone while you are on an established call to set the volume of the
earphone / speaker. You can choose between 8 different levels. The default level is 4.
Audio Control
This new feature could let user configures Headset Noise Shield 2.0. When enabling the Noise Shield
feature, it creates a virtual "noise shield" which blocks the sounds outside. When the value is set to "high" power, the shield is
created closer to the user which filters more noise. When the value is set to "low" power, the shield is created further from the
user which filters less noise. Users can find the configuration in Web UI ->Settings-> General Settings > Preferences> Audio
Control.
Ringtones
Setting the Ringer Volume
To configure the desired ringer volume, proceed as follows:
1. Press Menu to bring up operation menu and go to Settings.
2. Navigate to Basic Settings, and then select Sound tab.
3. User can configure the silent and vibrate modes and also the voice ringtones by pressing the left and right arrow keys to
change repeatedly and set the desired volume.
4. Press "Back" (right softkey) to confirm the new configuration settings.
Notes:
8 levels are supported. Level 8 is the highest level. Level 5 is the default.
appears when silent mode is enabled. In this mode no ring will be played for incoming calls.
Figure 27: Audio Control – Noise Shield 2.0