Comment by kornhole

This is what I have done for years: Cellular is always off anywhere near my house. I only turn on cellular when needed. I use Graphene which allows WIFI to be used without cellular for my VOIP calls on voip.ms or jmp.chat. I have been using prepaid cash purchased SIMs but might switch to silent.link. The only way for the carrier to know where I am is if they do something funny on the proprietary baseband modem.