If the sound on your DoorBird outdoor unit is too low, you can adjust it through the DoorBird app or web interface. Go to Settings, select the relevant DoorBird station, open Speaker Volume, and increase the volume level as needed.
To change it:
After making the change, DoorBird recommends testing the audio to confirm the improvement.
Additional Clarification from DoorBird
DoorBird also confirmed that these settings are configured per user and per device. This means:
Reason for This Design
According to DoorBird, this setup allows each user to personalize the app behavior based on: