How do I get Push notifications to work?

[71walceli]

Greetings! My company is testing your Web service in a self-hosted environments. Server is set up correctly AFAIK. Now we've set up Responder app o two phones. but we can't seem to get Push notificatios working on our phones.

Expected result: When creating a call, gettign messages or doing any action that should trigger notifications, a notification should appear, with sound and vibration, as normal.

Actual behaviour: No matter what, no Push notifications.

We set up the apps with our own API domail and accounts, ensuring all notificaions are enabled. Running Android 12, no no permission needed for notifications.