Not just locally on the device! There must be an error when calling or texting the number.
Data must work for internet for Signal, VoIP, etc.
This is for a UK PAYG SIM.
There should be no way for anyone to demand my number, or for me to leak it, or doing so should be irrelevant as it does not work.
I already have everyone on Signal.
I am trying not to leak my data plan number to others, by for example accidentially tapping call back with the wrong SIM.
In America, there is nothing that allows you to make that call/text to share that number for tablets. So I don’t see why this isn’t already a thing