911 quickly using VO

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Hi all. This just came to me while i was reading a book. Does the iPhone have anything set in place where if you need to you can call 911 quickly? I mean as I understand it, and happy to be mistaken, you have to unlock, open phone and either dial it, or find itin your contacts. I'm sure using Siri you can say Call 911 but because I'm not getting the five I don't have that option. Just asking for the sake of asking.