Using two iOS 17 features in tandem gives you a great way to stop unknown callers on iPhone. The Live Voicemail feature pairs very well with Silence Unknown Callers. With both of these turned on, unwanted calls will be far less intrusive, but you will still be able to pick up the important calls as they come in.

Here’s how to use Live Voicemail and Silence Unknown Callers to avoid phone spam and other annoyances without missing crucial calls.

How to use Live Voicemail and Silence Unknown Callers on iPhone

With Live Voicemail, a new feature in iOS 17, you don’t need to pick up your iPhone midcall to see who’s calling or what they want. You can see a transcription of their voicemail message as it’s being recorded — and you can pick up at any point, if the call turns out to be important. This feature proves transformative for introverts who only want to answer a phone call if strictly necessary.

Note: Live Voicemail is a feature of iOS 17. If you bought a new iPhone 15, you’ve got it already. Otherwise, head to Settings > General > Software Update to get the latest version of iOS. Upgrading should take about 20 minutes after downloading, so make sure you don’t start it at a bad time.

It’s also currently exclusive to the United States and Canada, though I expect the feature to roll out to other countries over time.

Table of contents: How to use Live Voicemail and Silence Unknown Callers

Turn on Live Voicemail in Settings > Phone
Send a call to Live Voicemail
Send unknown callers straight to voicemail
Find voicemails in the Phone app

1. Turn on Live Voicemail in Settings > Phone
Want to know how to stop unknown calls on iPhone? Turn on both of these features for maximum effect.Screenshot: D. Griffin Jones/Cult of Mac

Live Voicemail should be turned on by default in iOS 17. You can make sure it’s turned on by going to Settings > Phone > Live Voicemail.

2. Send an iPhone call to Live Voicemail to help stop unknown callers
Figure out whether an incoming call is important enough to pick up or not.Screenshot: D. Griffin Jones/Cult of Mac

When a call comes in, you can tap the Voicemail button to send the caller straight to voicemail. You’ll see “Waiting…” as the caller decides whether to leave a message. Now that you’ve got Live Voicemail turned on, if they leave a message, you’ll see a live transcription as they speak. At any point, you can tap Accept to pick up the call. (If your phone is locked, slide to answer the call.) You also can tap Message to send a text to the caller.

3. Send unknown callers straight to voicemail

Enabling Live Voicemail lets me confidently reenable Silence Unknown Callers (find it in Settings > Phone). This iPhone feature automatically declines calls from people outside your contacts and recent call history. It’s a great way to stop unknown calls from barging into your quiet time. But I was never comfortable enabling this feature before, since there was always that slim chance that I would miss an important call.

With both Live Voicemail and Silence Unknown Callers enabled, spam calls won’t be so intrusive, and you’ll easily be able to pick up the calls you actually don’t want to miss.

4. Find your voicemails in Phone

If you want to listen to the voicemail again or ring the caller back, go to Phone > Voicemail. Tap on any voicemail in the list. You can see a full transcript, play the message, delete it or tap the phone button to give them a callback.

Once you set up and use Live Voicemail, you’ll want to use it all the time. You can see which calls are worth the intrusion before you even pick up. It’s the best way to stop unknown callers from ruining your day.

More iOS 17 tips

Now that you’ve learned how to stop unknown calls on iPhone, do you want even more pro tips? Read about more new features in iMessage, FaceTime and Phone or check out our master list of iOS 17 features.

We originally published this post on how to stop unknown calls on iPhone using Live Voicemail and Silence Unknown Callers on November 14, 2024. We updated the content.