I’m reading that AT&T did in fact shut down their 3G network yesterday. Being as AT&T shut down their 2G network years ago, that leaves only 4G and 5G available for the AT&T network. Purism lists AT&T as being the network backbone for its MVNO service. Can you confirm that voice calling with the AweSIM service is still working today? If so, I’m assuming that Purism must have gotten VoLTE working with the BM818-A1 modem on AT&T’s network.