@projectmoon FNF
Thanks for your help.
No, I hadn’t disabled the suspension in UT Tweak Tools (I’ve done that now).
And I’m connecting via Bluetooth for the time being (whenever I try to switch to Wi-Fi, I can’t seem to reconnect to the board at the moment).
I'll test and let you know.
Your best options are enabling Wi-Fi Calling + SMS over Wi-Fi