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  2. Call blocking - Wikipedia

    en.wikipedia.org/wiki/Call_blocking

    Landline call blocker in use. Unwanted calls to landlines may be blocked through a number of methods. Some landline phones have built-in call blocking facilities. External call blockers are sold as telephone accessories which plug into existing phones.

  3. Anonymous call rejection - Wikipedia

    en.wikipedia.org/wiki/Anonymous_call_rejection

    On more modern landline services, particularly those using VoIP, ACR is sometimes activated and deactivated using a Web interface, rather than by dialling codes. On traditional landlines in the North American Numbering Plan , the feature is enabled with the vertical service code *77 , and disabled with *87 .

  4. Need to Make a Private Call? Here's How to Block Your Number

    www.aol.com/private-call-heres-block-number...

    There are multiple ways to block your phone number when calling someone.

  5. 5 ways to block or hide your number when making calls - AOL

    www.aol.com/news/5-ways-block-hide-number...

    Blocking your number can go a long way in stopping annoying robocalls. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 ...

  6. Caller ID - Wikipedia

    en.wikipedia.org/wiki/Caller_ID

    Caller ID blocking is the common term for a service by which a caller can prevent the display of the calling number on the recipient's telephone. Blocking the number is formally referred to as calling line identification restriction (CLIR). This customer option was part of the legal authorization for New York State's 1992 authorization of ...

  7. How to block a number or contact on any Android device - AOL

    www.aol.com/news/block-number-android-phone-stop...

    For premium support please call: 800-290-4726 more ways to reach us

  8. *82 - Wikipedia

    en.wikipedia.org/wiki/*82

    If Caller ID is subscribed to or enabled on the line receiving the call, the unblocked phone number and registered name is displayed – unable to determine that the caller subscribes to outgoing callerID blocking or that *82 has been dialed to temporarily override that subscription. *82 can be dialed from U.S. land-line house phones and ...

  9. Last-call return - Wikipedia

    en.wikipedia.org/wiki/Last-call_return

    In the UK, after dialing 1471, the caller can press "3" to automatically return the call. Previously free, since August 2004 the return call service incurs a charge. The service provider may also offer a facility by which the calling party can prevent their number being revealed to the called party, either permanently or on a per-call basis.