While Apple officially added support for Dual-SIM Standby to its 2018 iPhones with yesterday’s release of iOS 12.1, the number of carriers supporting the feature continues to be extremely limited due to the eSIM requirement. In fact, according to MacRumors, it appears that none of the U.S. carriers are quite ready to provide support for a second phone number out of the gate. AT&T has reportedly been telling customers that eSIM activations…
