They do this so they are harder to track & block. If they were sending over Wifi then they have to hide the IP, so they have to use VPNs, which are often blocke

They do this so they are harder to track & block. If they were sending over Wifi then they have to hide the IP, so they have to use VPNs, which are often blocked, etc. But with their solution they have a standard SIM on the standard cellular network, so it's nearly indistinquishable from a regular cellphone.