TL;DR: support for controlling Sonos system through mobile app, without local Wi-Fi connection
Context:
I have a Sonos systems in both my home and the production facility I work out of.
All of our Sonos devices are hardwired to the local networks, as are most of our internet-connected devices since we have a gigabit network & they need an optical connection to take advantage of that.
Because of this, I prefer to keep my mobile devices off Wi-Fi since my 5G cell coverage on my phone is actually more reliable.
Since the Sonos devices are connected to the internet anyway, why am I unable to control them from anywhere? Why do I have to be on the local network?