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In iOS 27, use Settings > Apps > Phone to choose how your iPhone handles calls from unknown numbers. Select Ask Reason for Calling to have the iPhone ask an unknown caller for their name and reason before your phone rings. When you are already on a call and put on hold, tap More > Hold Assist to be notified when an agent is available.
How do you screen unknown calls on iPhone?
- Open Settings.
- Tap Apps, then Phone.
- Under call screening, choose Ask Reason for Calling.
With this option, the iPhone automatically answers calls from unknown numbers and asks the caller to share their name and reason for calling. It then rings your phone and presents the caller’s response, so you can decide whether to answer. Siri speaks in the iPhone’s default language. Apple’s iOS 27 guide to screening and blocking calls describes the available modes.
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Choose what happens to unknown numbers
| Setting | What happens | Choose it when |
|---|---|---|
| Never | Call Screening is off; calls from unsaved numbers ring normally. | You want unknown callers to ring without screening. |
| Ask Reason for Calling | The iPhone asks unknown callers for their name and reason before ringing you. | You want context before deciding whether to answer. |
| Silence | Calls from unsaved numbers are silenced, sent to voicemail, and shown in Recents. | You do not want those calls to ring. |
Ask Reason for Calling is screening, not blocking. It gives callers a chance to identify themselves before you decide. Silence instead prevents the phone from ringing for unsaved callers and sends them to voicemail.
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How Call Screening differs from other call filters
In Phone settings, Unknown Callers moves calls from unknown numbers out of Recents and into an Unknown Callers list. Spam silences calls your carrier identifies as potential spam or fraud, sends them to voicemail, and places them in a Spam list. These filters are separate from asking callers to state their name and reason.
#1 Best Overall
- Caller ID/Call Waiting
- 80-name/number Caller ID history
- 13-number memory
- Display dial
- Mute/flash.Last number redial.Ringer volume control.Desk/wall mountable.White
How do you use Hold Assist on iPhone?
- While on a call, wait until the other party puts you on hold.
- Open the call controls and tap More.
- Tap Hold Assist.
- When notified that an agent is available, tap the answer or rejoin control to return to the conversation.
Hold Assist can notify you when a live agent is available and provide a transcript of the portion you missed. Apple says the call is not recorded. Its real-time transcription is processed entirely on device, discarded when the call connects, and not stored by Apple. See Apple’s Use Hold Assist on iPhone instructions for details.
Check your settings before stepping away
Your iPhone needs to be able to alert you when the agent returns. Apple warns that Silent mode or Do Not Disturb can prevent you from hearing the incoming call. Check that your phone can ring before leaving it unattended.
Rank #2
- Built-in Digital Answering System: Record up to 25 minutes of messages, outgoing announcements, and memos with easy playback and remote access — no need for a separate answering machine
- Large Tilt Display for Easy Viewing: Adjustable backlit LCD screen clearly shows Caller ID, call history, and menu options from any angle
- Reliable Corded Performance: Works during power outages for basic calling (line-powered); Caller ID and answering system require 4 AA batteries (not included)
- Caller ID: View incoming caller names and numbers with a 50-name/number call log for convenient call screening
- Convenient Features: Speakerphone, volume control, last number redial, and wall-mountable design — For everyday home or small office use.
iOS 27 says Phone can detect hold music and prompt you to start Hold Assist. The guide points to Settings > Apps > Phone for Hold Assist Detection, while Apple’s dedicated support article says detection is on by default. Check the setting on your own iPhone rather than assuming it has a particular state.
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- You want unknown callers to identify themselves: choose Ask Reason for Calling.
- You want unsaved numbers sent to voicemail without ringing: choose Silence.
- You want unsaved numbers to ring normally: choose Never.
- You are already on a call and waiting for a live agent: use Hold Assist from the call controls.
Call Screening changes how incoming calls from unknown numbers reach you. Hold Assist addresses a different situation: waiting for an agent during a call already in progress.
Rank #3
- 25-Minute Digital Answering System — Never miss a message again. Record up to 25 minutes of incoming calls, outgoing announcements, and memos with easy instant playback, selective save/delete, and the ability to skip or repeat messages right from the handset or base
- Extra-Large Tiltable Backlit Display — See Caller ID names, numbers, time, and date at a glance — even Call Waiting. The oversized LCD tilts for the perfect viewing angle, reducing strain for seniors and anyone with vision needs
- Oversized Big Buttons — Large, high-contrast keys are easy to read and press — ideal for elderly users, arthritis, or low vision. Simple, frustration-free dialing every time
- Hands-Free Speakerphone — Talk and listen comfortably without holding the handset. Perfect for multitasking, note-taking, or including the whole family in the conversation
- Reliable Corded Design with Audio Assist — Works even during power outages. Audio Assist temporarily boosts volume and clarity for better hearing, plus an extra-loud ringer with visual flashing indicator
Which iPhones support Hold Assist?
Apple lists Hold Assist for iPhone 12, iPhone SE (3rd generation), or later. Availability also varies by country or region. Check Apple’s Hold Assist support page and iOS and iPadOS feature availability for your location; Apple’s availability page is the place to confirm regional support.
Quick Recap
Best Value
- UNSURPASSED RANGE: Experience the best in long-range coverage and clarity, provided by a unique antenna design and advances in noise-filtering technology
- ANSWERING SYSTEM: This reliable cordless system includes a digital answering machine that can record up to 22 minutes of incoming messages, outgoing announcements and memos, and a voice-guide for easier set up
- SMART CALL BLOCKER & CALLER ID ANNOUNCE: Say goodbye to unwanted calls. Robocalls on your landline are automatically blocked from ever ringing through - even the first time. You can also permanently blacklist any number you want with one touch on the dedicated key on the handset. The call block directory can store up to 1,000 name and number entries. Plus, the handset announces the name of the caller, so you can decide to answer the call or block it - screening calls has never been easier
- LARGE 2-INCH SCREEN, BIG TEXT, LIGHTED KEY PAD: High-contrast text on the extra-large 2 inch screen makes it easy to read incoming caller ID or call history records. Plus, the enlarged font and extra-large and lighted handset keypad allows for easy dialing in low-light conditions. This feature is helpful for those who are visually impaired
- HANDSET SPEAKERPHONE, AUDIO ASSIST, INTERCOM: This cordless system has built-in full-duplex speakerphone on handset allowing both ends to speak - and be heard - at the same time for conversations that are more true to life. Also designed with useful features like Audio Assist and handset intercom to help make your daily communications enjoyable
Rank #4
- [13 Speed Dial Keys] - With 3 dedicated memory keys to do one touch dialing to your 3 favorite numbers. Additionally 10 more numbers for two touch dialing using the number keys on keypad.
- [Display dialing & Last Number Redial] - The redial button help to dial the last number swiftly. Telephone numbers in the Caller ID log can be dialed with the touch of a button.
- [Caller ID / Call Waiting] - See who is calling with caller ID / call waiting. The handset displays the name, number, time and date of incoming calls. Stores 80 call record entries. For the Caller ID to function, three Alkaline AA batteries (not included) are necessary.
- [No AC Power Required] The Line-power mode enables you to connect to the world without any dependency on power at your premises. Standby time over one year & talk time over 6 months. Handset will indicate low battery when required.
- [[Easy Wall Mountable] This phone was designed to easily hang on the wall of your home and office so that you can keep on doing your activities and be able to take the call when required.
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