iPhone XR's screen triggers other devices Recently I bought a brand new iPhone XR. When its screen is activated by some application (not necessarily a GSM call or a Wi-Fi thing), it affects other speakers or headphones around it. All of them sounds exact same 4 &quot;buff&quot; like sounds consecutively.  It reminds me of the way old mobile phones affected the speakers around them. Is there anyone knows why it happens and how to prevent it? It annoys me and I really need a solution.
Typically, this kind of speaker interference happens when there is a large amount of cellular data transfer. If you keep your phone on WiFi and enable WiFi calling, you may experience it less since WiFi is a lower strength signal than cellular?
I don't know if there is another way to avoid this...