Siri is great, but there are some things Siri can't do, like take screenshots. Plus, if you have low cell coverage and no Wi-Fi access, then Siri turns off entirely. Turning on voice commands is a great way to navigate your iPhone, open apps, browse the web, and send texts, all without relying on Siri. You can enable your iPhone's Voice Control in the Accessibility menu of your Settings app. Let's dive in with how to turn on Voice Control for the iPhone.