How to Activate Wi-Fi Calling on Your iPhoneOne of the best calling features on the iPhone, assuming it’s enabled by your carrier of choice, is Wi-Fi callingCopyFacebookXTruthGettrLinkedInTelegramEmailSaveSmartphones are alleged to fetch around $3,500 in California’s prisons, an iPhone 5 shown here on Nov. 15, 2012. Jean-Sebastien Evrard/AFP/Getty ImagesBy Chris Smith4/14/2015Updated: 4/14/2015Print