Not really helpful though? My iPhone is fully compatible and the Smarty Sim allows internet connectivity but excludes many telephone calls both receiving and calling out - which is the purpose of having a telephone believe. Once I find a reliable net...
Smarty were good for a few years, now endless problems with connectivity and useless advice that can’t solve the simple issue of making and receiving calls from other networks. I don’t know what they’ve done, but it’s now ridiculously unreliable