3 ms·For real, they're using old iPhones??? How does that even work?? Jailbroken but then?by medion 5y agoFor real, they're using old iPhones??? How does that even work?? Jailbroken but then?saagarjha 5y agoHook into iMessage and just send and receive messages using its "API" rather than having to work out authentication.medion 5y agoWouldn't you then need an old iPhone for each user?saagarjha 5y agoIndeed.