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  2. Last-call return - Wikipedia

    en.wikipedia.org/wiki/Last-call_return

    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. This is achieved by prefixing the dialed number with: Australia: 1831 on landlines and mobile phones, or #31# from a mobile [5]

  3. Callback (telecommunications) - Wikipedia

    en.wikipedia.org/wiki/Callback_(telecommunications)

    For example, if a customer from Spain is calling a phone number in Australia, and it costs 8 cents per minute to phone Spain from the US (the callback, which is an incoming call) and 20 cents per minute to phone Australia from the US (the destination call, which is an outgoing call), then the caller will pay a total of 28 US cents a minute ...

  4. Ringback number - Wikipedia

    en.wikipedia.org/wiki/Ringback_number

    A ringback number is a telephone number for a telephone line that automatically calls the line that the call was placed from, after the caller has hung up. The ...

  5. You can now add a callback number to your lost (and locked ...

    www.aol.com/news/2014-08-08-android-device...

    One way to do that is through Android Device Manager, which now has the capability to add a callback number on the phone's lock screen that the finder can contact. You can now even write a message ...

  6. How to tell if someone blocked your number - AOL

    www.aol.com/2019-08-16-how-to-tell-if-someone...

    When you look at your messages with the person you think blocked you, look for that confirmation. “The last message that you know was received and responded to…should have a ‘delivered ...

  7. Automatic callback - Wikipedia

    en.wikipedia.org/wiki/Automatic_callback

    In telecommunications, an automatic callback is a computer telephony calling feature that permits a user, when encountering a busy condition or other condition where the called individual is unavailable, to instruct the system to retain the called number and to establish the call when there is an available line or when the called number is no longer busy.

  8. Automatic ring back - Wikipedia

    en.wikipedia.org/wiki/Automatic_ring_back

    Automatic ring back is a service offered by phone companies.. On making a telephone call to a number that is engaged, automatic ring back is a service provided by the telephone company whereby, when the called number becomes available, the caller is rung back, usually with a distinctive "ring back" ring.

  9. Unstructured Supplementary Service Data - Wikipedia

    en.wikipedia.org/wiki/Unstructured_Supplementary...

    USSD messages are up to 182 alphanumeric characters long. Unlike short message service (SMS) messages, USSD messages create a real-time connection during a USSD session. The connection remains open, allowing a two-way exchange of a sequence of data.