If you cannot hear messages, start with a few simple checks. The cause may be the audio output, your connection or a channel that is not currently broadcasting.
Check playback and volume
Open Air alert radio and check whether playback is active. Raise your iPhone's media volume to a comfortable level.
Check the audio output
Look for connected Bluetooth headphones, a speaker or a car audio system. If needed, select the intended output using the system audio controls.
Check the connection and channel
Confirm that other websites or apps can access the internet. Then review your selected regions and channel in Air alert radio.
Some channels broadcast only during an air alert in the selected region. Silence does not necessarily indicate a fault.
If the problem continues
Try pausing and restarting playback. If the issue returns, note the channel name, time, app version and connection type. These details will help you describe the problem when asking for assistance.
Do not infer safety from the presence or absence of sound. Check current messages from official sources.