I think I misspoke. Rather than a true burner phone you'd want to use a prepaid phone with minutes that don't expire, or that you can keep active by using a min

I think I misspoke. Rather than a true burner phone you'd want to use a prepaid phone with minutes that don't expire, or that you can keep active by using a minute every 90 days etc. Definitely a hassle, but for anyone for whom a phone number is insufficiently anonymous I would imagine they're used to it. I admittedly don't know as much about the options for VOIP but I've got to to believe there's a way to get a phone number on the internet where you can receive SMS and keep it active indefinitely.