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To stop repeated calls, choose the control that matches the number: an unsaved number is not necessarily private, and suspected spam is a separate category. On iPhone, call screening and silence options can handle numbers not saved in Contacts. In Google’s Phone app on Android, the Unknown switch blocks only private or unidentified numbers—not every number missing from your contacts. For one persistent caller, block that number from your call history.
Know which kind of caller you want to stop
- Unsaved number: The caller’s number is visible, but it is not in your contacts. It could be a legitimate new caller, such as a school, clinic, or delivery driver.
- Private or unidentified number: The caller’s number is withheld or unavailable to the phone app. This is the category Google Phone’s Unknown setting blocks.
- Suspected spam: A carrier or caller-identification service flags the call as potential spam or fraud. Spam filtering relies on those identification signals; it is not the same as blocking every unsaved number.
- One repeat caller: If the number is visible, block that number directly rather than silencing all callers outside your contacts.
Silencing or filtering a call does not always reject it. Depending on the setting, the phone may send it to voicemail or place it in a separate list. The precise outcome and record location differ by platform.
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Choose the right option
| Caller type | iPhone | Google Phone app on Android |
|---|---|---|
| Numbers not saved in contacts | Call screening can ask why the caller is calling; Silence sends the call to voicemail. An Unknown Callers filter can move calls to a separate list. Apple’s available controls and labels depend on iOS version. Apple’s guide to screening and blocking calls and unknown caller options. | The Unknown setting does not block numbers merely because they are absent from contacts. Google’s explanation of Unknown. |
| Private or unidentified numbers | Use the available screening or silence controls for unknown callers; the cited Apple guide describes these options for unsaved callers rather than defining a separate private-number block. | Turn on Unknown under Blocked numbers. Blocked calls do not appear in call history. Google’s blocked-number instructions. |
| One identified repeat caller | Block the number in the Phone app. Apple’s blocking instructions. | Open the call in call history and choose Block / report spam. Google’s instructions. |
| Suspected spam | The Spam filter silences calls the carrier identifies as potential spam or fraud and moves them to a Spam list. Apple’s options. | Caller ID and spam settings can identify or filter suspected spam. Filtered calls remain in call history, but do not generate missed-call or voicemail notifications. Google’s spam-filter instructions. |
Block or screen calls on iPhone
Choose how unsaved callers are handled
- Open Settings > Apps > Phone.
- Select the available call screening option. Apple lists Never, Ask Reason for Calling, and Silence: Never leaves calls from unsaved numbers ringing normally; Ask Reason for Calling screens callers before the phone rings; Silence sends calls to voicemail and shows them in Recents. Options and labels depend on iOS version. See Apple’s screening and blocking guide.
Use separate lists for unknown calls or spam
In Settings > Apps > Phone, check for an Unknown Callers filter and a Spam filter. The Unknown Callers filter moves calls from unknown numbers to an Unknown Callers list. The Spam filter silences calls that the carrier identifies as potential spam or fraud and moves them to a Spam list. These filters do not have the same meaning: one is based on unknown callers, while the other depends on carrier identification. Availability and labels can vary by iOS version. See Apple’s unknown caller options.
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Block an identified caller
Open the Phone app, find the caller in Recents, open the call’s details, and choose the option to block the caller. Blocking a particular number is the more targeted choice when one visible number keeps calling. Apple’s blocking guide covers the call-blocking control.
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- COMPATIBILITY: For traditional analog landline phones and services from providers such as AT&T, Verizon, Frontier Communications, CenturyLink, and Brightspeed. Not compatible with internet-based or digital phone services (VoIP), including Vonage, Ooma, Xfinity Voice, and Quantum Fiber.
- IMPORTANT: The V5000 CPR Call Blocker requires Caller ID service and an analog telephone line. Without Caller ID, incoming numbers cannot be identified or blocked. No mains power required - just plug it into your phone line and use.
- Powerful Blocking, Made Simple: Preloaded with 5,000 verified scam and nuisance numbers, the V5000 starts protecting you right out of the box. And if a new or spoofed number gets through, the large “BLOCK NOW” button makes it easy to instantly block it - up to 1,500 additional numbers at your command.
- Realistic & Reliable Protection: While no device can stop 100% of spam (scammers constantly change numbers), the V5000 gives you the power to shut down repeat offenders quickly and effectively - offering more control than passive filters alone.
- Hassle-Free Design: NO POWER supply needed, NO APP, and NO SUBSCRIPTIONS. The V5000 is easy to install, with a clear screen and loud button click for extra confidence. Designed with seniors in mind, it’s ready to use and simple to maintain. For even stronger protection, you can pair it with your phone provider’s spam filtering service.
Keep legitimate calls accessible
Add important numbers to Contacts so they are easier to recognize and less likely to be treated as unknown. Apple notes that call screening is turned off for 24 hours after you call emergency services. On versions earlier than iOS 17, Live Voicemail also needs to be enabled for call screening; calls are not screened while roaming. Those caveats matter if you rely on screening while traveling or use an older iOS version. Apple documents these conditions.
Block calls in Google’s Phone app on Android
Block private or unidentified numbers
- Open the Phone app.
- Tap More > Settings > Blocked numbers.
- Turn on Unknown.
This setting blocks private or unidentified numbers, not all numbers missing from contacts. Google Phone app Help puts the distinction plainly: “This will block calls from private or unidentified numbers. You will still receive calls from phone numbers that are not stored in your contacts.” Google Phone app Help.
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- This is the latest version Telephone Call Blocker with hidden or unavailable call numbers can be blocked. And there is no fees to use it; Please keep the manual for future use.
- Block up to 4000 individual phone numbers, including incoming and outgoing calls , prefixes and up to 10 digit area codes.
- One-touch to Block: Locate a number and then press Block to add it to the blacklist.Better set the call blocker in series ( one end of it connected to your phone and another end to the PSTN telephone line); Though it can also be set up parallel, but not compatible with some phone systems.
- Permanent storage of the numbers in the blacklist even power is off or telephone line is plugged out.
- Battery free: It is line powered, no need battery. And it works with almost all single line telephones. If you find some numbers are blocked but you never mean to, then press Block and check your blacklist, then delete those numbers which like area codes or prefix numbers.
Block one identified repeat caller
Open the Phone app’s call history, select the call, and choose Block / report spam. Google says blocked calls will not show in call history; when visual voicemail is on, blocked callers cannot leave voicemail. This differs from spam filtering, whose filtered calls remain in call history. See Google’s blocked-number instructions.
Filter suspected spam
- Open the Phone app and tap More > Settings > Caller ID and spam.
- Enable the caller ID or spam options you want, including Filter spam calls if available.
Google says filtered calls do not trigger missed-call or voicemail notifications, but remain in call history so you can check voicemail. Caller ID and spam protection may send call information to Google to identify businesses or determine whether a call is spam; Google says numbers in your Contacts list are not sent. Review Google’s spam-filter guidance and its privacy explanation before enabling the feature.
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- How it Works: SPAM identified calls are instantly blocked automatically. Preferred Calls Ring through like normal with Caller ID displayed. Your phones connected to the TEL port Won't Ring on Blocked Calls. Create your own Invited or Allowed Family (White List) and block All other callers. Use the Dual Block Buttons to Block a NAME or NUMBER Displayed. Remote Block a Call when Dialing * 2 # through your telephone handset.
- The Patented ProSeries 3 Call Blocker from Digitone is an Easy Installation and is Simple to Use. No need to rush over and tap a red button when the ProSeries has already blocked a known unwanted SPAM, Out of Area, Private, Anonymous, 800 Service, ROBO?, Dashes, "Quotes" or V123+ call. Use Call History to select Any Caller to Block by (Double Tap) Name or Number. Block any NAME like: Unavailable, Unknown, SCAM RISK, City + State, Potential Scam, Wireless Caller. Block ANY call without answering, as they call in with either RED button.
- Feel confident that the ProSeries already Blocks Millions of Known Unwanted Numbers and Fake Names. No need to change your existing phones or service. Works with Any Analog Corded, Cordless Phone or Fax System on any telephone service. Large Back-Lighted Display. Got questions? Call the number on the front screen of the ProSeries 3.
- Works with all USA phone companies: AT&T, Cox, Spectrum, CenturyLink, Cable Modems, DSL, FIOS, or Digital Services from VoIP Telcos like [V] from Verizon, Ooma Telo, Ooma Basic, Vonage, Magic Jack etc. Also, works in Mexico, Canada, Brazil, European Union (ETSI), Australia, Singapore and others with North American standardized phone lines.
- Allow any blocked caller to ring through like normal with the Green Invite Button. Double Tap the Green Button to add VIP callers shown in Call History. Note: Caller ID Name and Number Service from your phone company is required for this model to work automatically.
What changes on other Android phones?
The steps above apply to Google’s Phone app. Android menus and call controls vary by manufacturer and installed phone app, and a carrier may provide its own spam controls. Do not assume that a setting called Unknown on another phone has the same definition as Google Phone’s setting.
On supported Pixel phones, Google Call Screen can ask certain unknown callers who they are and why they are calling before the phone rings. Google documents automatic Call Screen in English in the United States on Pixel phones running Android 10 or later. It declines calls identified as spam without alerting you; callers it does not identify as spam can ring after responding. Availability is not established for every Android device or region. See Google’s Pixel Call Screen guidance.
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- [ IMPORTANT NOTE 1 ] This product is a call blocker only and does not have a telephone or answering machine function. No phone or answering machine is included in the package. Before purchasing, please make sure that your telephone line has Caller ID service and that it is an ANALOG line. the ENF860 requires Caller ID service from your telephone line provider to work and is for analog lines only ! No mains power required, just plug in the phone line to use
- [ IMPORTANT NOTE 2 ] In BLOCK mode, there will STILL BE some new variant numbers bypassing the database making the phone ring, you NEED to manually set up to block them OR switch to FAMILY mode to let only the numbers in FAMILY LIST through. Please refer to the manual for the CORRECT SETTINGS.
- Dual mode;In BLOCK mode you can block callers by Numbers and Names; In FAMILY mode all callers outside the FAMILY LIST are blocked;The two modes can be switched at any time as needed and NO data will be lost after switching modes.
- Preloaded with a large number of spam numbers that have been the subject of repeated complaints ; Users can also manually add 4000+ numbers to the NUMBER LIST to build their own database ; Add 256 NAMES to block calls by name.
- Blocks INTERNATIONAL, PRIVATE/WITHHELD, and Out of Area numbers by default; users can SET to block the entire area code or changing numbers starting with a fixed number, such as 00, 800, 855, 999, 7324, 33626, 134567, etc.
Do Not Disturb does not block repeat callers
Some Android Do Not Disturb settings or modes include Allow repeat callers. Android Help describes this as allowing a second call from the same person within 15 minutes. That exception is intended to let an urgent repeat call through; it is not a way to block that caller. The setting varies by device. Android Help explains repeat callers.
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