The Phone app on your iPhone has a convenient “Favorites” section where you can find your most important contacts. Here’s how to choose which contacts appear here.

You can also set Do Not Disturb so that your favorite contacts can always reach you—even if other incoming phone calls won’t ring your iPhone. This can be vital in an emergency.

Favorites have been around since the very early days of the iPhone, but that likely means that you’ve forgotten that they exist. And that’s a real shame because this feature is so useful.

How to Add a Contact to Favorites

To add a contact to favorites, open the Phone app—the one with the green phone icon—and tap the “Favorites” button before tapping the “+” button in the top-left corner.

Next, find the contact that you want to add and tap their name.

You will now be shown all of the types of entries you can create for the contact you selected. Those include “Message,” “Call,” “Video,” and “Mail.” Tap the type of favorite you want to create. When tapped, that is the action that will be performed when the favorite is activated. For this how-to, let’s select “Message.”

All available phone numbers or email addresses will now be displayed. Tap the one that you want to assign as a favorite.

That’s all there is to it, and you now have a new entry in Favorites. Tapping it will start a chat in Messages, start a voice or video call, or compose a new email depending on the options you chose earlier.

How to Remove a Contact from Favorites

Open the Phone app and tap “Favorites before tapping the “Edit” button at the top of the screen.

Next, tap the red “Delete” button to the left of the contact that you wish to remove and then tap the “Delete” button that appears to the right.

How to Allow Favorites to Bypass Do Not Disturb

Open the Settings app and tap “Do Not Disturb.”

Next, tap the “Allow Calls From” option.

Finally, tap “Favorites” to allow calls from those designated as favorites to bypass Do Not Disturb when it is active.