Is iPhone 15 pro max compatible with 48? I am a 48.ie customer for a few months now but my experience is that anytime I rely on mobile data, this is failing. Roaming does not work, either. I live close to the NI border and we often cross to Derry or Belfast and my roaming does not work. I am wondering if this is a matter of compatibility. My husband is also a 48 customer with a Google pixel 7 phone and doesn't have a problem.