I'm new to the iPhone (coming from a Galaxy S4). Last week FiOS went down in my neighborhood. Quite a shock - that's never happened to me before. Unfortunately, it happened when I was on a critical conference call and sharing my desktop. So, I called into the conference bridge via the iPhone and turned on hot spot to connect my laptop. But, while I was on the call, there was no connectivity via the iPhone/wi-fi. I tried it again this evening, and the laptop lost connectivity when I made a call on the iPhone. Am I doing something wrong? Or, is the iPhone incapable of handling a call & being a hot spot at the same time? If the iPhone can't support call + hot spot, I'll be second guessing the switch. Staying online while running conference calls is key to keeping my teleworking status. (FiOS is stable, but the power occasionally goes out. That's when I rely on my cell.) Never occurred to me to question whether the iPhone had this basic functionality.