Phone, Messages, and FaceTime

Calls from numbers not in your contacts, recent outgoing calls or Siri suggestions are silenced and sent to voicemail.

Settings > Apps > Phone > Silence Unknown Callers

iMessage sends over the internet between Apple devices and shows blue, while SMS uses the carrier and shows green, with Send as SMS deciding what happens when iMessage cannot get...

Settings > Apps > Messages

A blocked number cannot call, message or FaceTime you, and the same list applies across Phone, Messages and FaceTime.

Settings > Apps > Phone > Blocked Contacts

Read receipts tell the sender when you opened their iMessage, and they can be turned off globally or for individual conversations.

Settings > Apps > Messages > Send Read Receipts

iMessage settings control which addresses receive messages, which one new conversations start from, and whether the service is on at all.

Settings > Apps > Messages > Send & Receive

Calls and texts travel over Wi-Fi instead of the cellular network, which fixes poor indoor reception.

Settings > Apps > Phone > Wi-Fi Calling

Messages from numbers not in your contacts are moved to a separate list and do not generate a notification.

Settings > Apps > Messages > Unknown & Spam

Messages can be kept forever, for one year, or for 30 days, after which they are deleted automatically.

Settings > Apps > Messages > Keep Messages

When someone leaves a voicemail you see a live transcript as they speak, and you can pick up mid message if it matters.

Settings > Apps > Phone > Live Voicemail

Calls to your iPhone can also ring on your iPad, Mac and other devices signed into the same Apple Account.

Settings > Apps > Phone > Calls on Other Devices