Why does my iPhone say SOS? What it means – and how to set up Wi-Fi calling

If you’re an iPhone owner currently living in a major American city, you may see the words “SOS only” on your status bar. You’re probably not the only one, because at the time of this writing, the US is recovering from a major cellphone outage leaving tens of thousands without service.This outage hit one of the US’ largest wireless providers: AT&T (it’s unclear if any other service was offline or simply getting reports because T-Mobile, for instance, customers could not contact anyone on ATT). Cellular companies are working to restore service, but it may be …

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