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  2. 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 ... 1167 (rotary phone), #31# (AT&T Wireless) Pakistan *32# PTCL Poland #31 ...

  3. *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 ...

  4. Anonymous call rejection - Wikipedia

    en.wikipedia.org/wiki/Anonymous_call_rejection

    In many voice telephone networks, anonymous call rejection (ACR) is a calling feature implemented in software on the network that automatically screens out calls from callers who have blocked their caller ID information. The caller usually hears a voice message explaining that their call cannot be connected unless they display their number.

  5. Call blocking - Wikipedia

    en.wikipedia.org/wiki/Call_blocking

    These devices rely on caller ID information and thus a phone blocker requires a caller ID service active on the line for blocking to function. Treatment of blocked calls may include: Sending the caller to voicemail; Sending the caller to busy signal; Sending the caller to "Number No Longer in Service" Sending the caller to "Keep Ringing"

  6. One woman tackles robocall scams - AOL

    www.aol.com/one-woman-tackles-robocall-scams...

    Barbara Mohon is my new hero. This Santa Fe lady, a retired dental hygienist, took on the junk callers who pestered her daily and won in court.

  7. Automatic number identification - Wikipedia

    en.wikipedia.org/wiki/Automatic_number...

    ANI is conceptually and technically different from caller ID service. [1] A caller's telephone number and line type are captured by ANI service even if caller ID blocking is activated. The destination telephone company switching office can relay the originating telephone number to ANI delivery services subscribers.

  8. Block all senders except for Contacts - AOL Help

    help.aol.com/articles/block-all-senders-except...

    Block all senders except for Contacts Avoid the frustration of unwanted emails by enabling the option to only receive messages from senders who are in your contact list. If you're expecting messages from a specific sender, be sure to add their email address to Contacts .

  9. Vertical service code - Wikipedia

    en.wikipedia.org/wiki/Vertical_service_code

    As CLASS was an AT&T trademark, the term vertical service code was adopted by the North American Numbering Plan Administration. The use of vertical is a somewhat dated reference to older switching methods and the fact that these services can only be accessed by a telephone subscriber, going up ( vertically ) inside the local central office ...