Call Blocking on:
[Wikipedia]
[Google]
[Amazon]
Call blocking, also known as call block, call screening, or call rejection, allows a telephone subscriber to block incoming calls from specific telephone numbers. This feature may require an additional payment to the subscriber's telephone company or a third-party.
Call blocking is desired by individuals who wish to block unwanted phone calls. These generally include types of unsolicited calls from telemarketers and robocalls.
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.
Call blockers and related services recently received attention in 2016 from publications including Which? and Consumer Reports in the United Kingdom and United States respectively. Such devices and services enable the user to block a call as it is in progress or alternatively block the number after the call is made. 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"
Landlines
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.
Call blockers and related services recently received attention in 2016 from publications including Which? and Consumer Reports in the United Kingdom and United States respectively. Such devices and services enable the user to block a call as it is in progress or alternatively block the number after the call is made. 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"
Smartphones
There are a multitude of third-party call blocking applications available for smartphones while some manufacturers provide built-in call blocking functions as standard.See also
*Caller ID spoofing
Caller ID spoofing is the practice of causing the telephone network to indicate to the receiver of a call that the originator of the call is a station other than the true originating station. This can lead to a caller ID
Caller identificati ...
References
{{Reflist Caller ID Calling features Telephone service enhanced features