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Oh. The omission was my mistake... one I made because I was assuming that offering voice calls isn't particularly credible with the isolation technique used in

• pengaru 6y ago
  > Oh. The omission was my mistake... one I made because I was assuming that offering voice calls isn't particularly credible with the isolation technique used in the device. The isolation technique AIUI is not really any different from what purism does with the librem; hang it off the USB bus, expose power control to the user. But that still provides convenient first-class software integration as a cellular modem when that's functionality the user wishes to access. A wifi hotspot your device uses over wifi which just happens to be reaching the internet via a cellular network has absolutely no software-level integration as a cellular modem providing voice/SMS/MMS services. > For SMS/MMS do none of the wifi hotspots offer a similar interface to serial cellular modems? Not AFAIK, my experience is limited to a ZTE mobile hotspot on at&t prepay, but it's a bog standard wifi hotspot. Sure I can do the sms-over-email dance through the data link, but i could also use voip or skype or whatever over data, that's besides the point. To be useful as a hardened even basic feature phone substitute, it needs to be able to make/receive calls and sms/mms, at most requiring the flick of a switch toggling the cellular modem.