You can change the standard settings of the handset if you are not happy with them.
Handset volume
When selecting the menu, the tone sounds at the current setting in speakerphone mode. You can choose between five volume levels in handset mode and three volume levels in speakerphone mode.
or
Open the main menu of the mobile phone.
Select and confirm the menu item.
Select and confirm the menu item.
Fix the setting.
Move the cursor down one line.
...
Save the settings.
HiPath 3000 - Operating instructions - Gigaset active M