Use Contacts from the Phone app on iPhone

In the Phone app on iPhone, you can call contacts and add recent callers to the Contacts app .

Add a Favorite

You can add VIP contacts to your Favorites list for quick dialing.

Select a contact, scroll down, then tap Add to Favorites.

Calls from these contacts bypass Do Not Disturb (see Turn a Focus on or off on iPhone).

Save the number you just dialed

In the Phone app , tap Keypad, enter a number, then tap Add Number.
Tap Create New Contact, or Add to Existing Contact, then select a contact.

Add a recent caller to Contacts

In the Phone app , tap Recents, then tap next to the number.
Tap Create New Contact, or Add to Existing Contact, then select a contact.

Automate dialing an extension or passcode

If the number you’re calling requires dialing an extension, iPhone can enter it for you. When editing a contact’s phone number, tap , then do any of the following:

Tap Pause to enter a two-second pause (a two-second pause is represented as a comma in the phone number).
Tap Wait to stop dialing until you tap Dial again (wait-to-dial is represented as a semicolon in the phone number).

A phone number with a comma, indicating a two-second pause between digits, and a semicolon, indicating that it should stop dialing until you tap Dial again.

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iPhone User Guide

Use Contacts from the Phone app on iPhone

Add a Favorite

Save the number you just dialed

Add a recent caller to Contacts

Automate dialing an extension or passcode