> ...constantly swapping SIMs and changing the phone number There are a lot of cloud telephony companies that'd vend you a number and gladly connect your calls

> ...constantly swapping SIMs and changing the phone number There are a lot of cloud telephony companies that'd vend you a number and gladly connect your calls over the Internet so that you avoid roaming fees [0]. And data-plans are easy and super cheap to come-by given the advent of esims [1]. [0] https://play.google.com/store/apps/details?id=com.esim.numero https://play.google.com/store/apps/details?id=com.esim.numer... [1] https://play.google.com/store/apps/details?id=com.mobillium.airalo https://play.google.com/store/apps/details?id=com.mobillium....