THE CHALLENGE University of Utah Health has more than 1,300 physicians across four hospitals and 10 clinics. Around 2010, University of Utah Health was overwhelmed with requests from some of these physicians who needed a way to communicate with one another via their smartphones. In response, University of Utah Health implemented a basic SMS-based communication system. Not long after, University of Utah Health’s IT and telecommunications teams realized this system was not meeting the physicians’ communication needs. They had issues with reliability—carrier delays and a lack of cellular coverage in some areas of the hospital—as well as security concerns. “We heard of doctors receiving critical pages hours after they were sent, or missing pages entirely because of no-signal areas, ” s

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