@eskimo First of all thank you for your answer. I read your article, but is it the same for XMPP? I mean ... According to the Apple Developer Enterprise Program, are the background restrictions only valid for applications used within the company? The scenario is that the XMPP connection should never break in the app and the app will wake up with a message from the server at a certain interval and send a message to the server. is this possible?

The purpose is to send messages to XMPP at regular intervals. That's why the connection must always be live. Is it possible to do this on iOS?

with XMPP