Use Contacts With Phone
Prioritize your contacts. When you add someone to your Favorites list, their calls bypass Do Not Disturb and are added to your Favorites list in Phone for quick dialing. Choose a contact, then scroll down and tap Add to Favorites.
Save the number you just dialed. In Phone, tap Keypad, enter a number, then tap Add to Contacts. Tap Create New Contact, or tap "Add to Existing Contact" and choose a contact.
Add a recent caller to Contacts. In Phone, tap
Recents, then tap
next
to the number. Then tap Create New Contact, or tap "Add to Existing
Contact" and choose 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
to enter
pauses in the dialing sequence. Tap Pause to enter a two-second
pause, which is represented by a comma. Tap Wait to stop dialing
until you tap Dial again, which is represented by a
semicolon.
