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  2. Callback (telecommunications) - Wikipedia

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

    The server then disconnects the call. Based upon the user name and a list of users' phone numbers, the server will then establish a second call back to the client computer. The client computer, expecting this returned call, will then answer and communications between the two computers will proceed normally.

  3. This is why you should never call back an unknown number - AOL

    www.aol.com/article/lifestyle/2019/05/03/this-is...

    The post This Is Why You Should Never Call Back an Unknown Number appeared first on Reader's Digest. Not everything is a scam: Show comments. Advertisement. Advertisement. In Other News.

  4. Unstructured Supplementary Service Data - Wikipedia

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

    The user sends a request to the network via USSD, and the network replies with an acknowledgement of receipt: "Thank you, your message is being processed. A message will be sent to your phone." Subsequently, one or more mobile terminated SMS messages communicate the status and/or results of the initial request. [5]

  5. Last-call return - Wikipedia

    en.wikipedia.org/wiki/Last-call_return

    Call again, a form of automatic ring back, allows a caller, on reaching a busy signal, to hang up, dial a special code, and be called back automatically when the called number is no longer busy, usually with a limit of 30 minutes. Call return allows a customer to dial a code that identifies the last incoming call. On some types of central ...

  6. Telephone numbers in East Timor - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_East...

    Following the violence in the wake of Indonesia's departure from the territory, most of the telecommunications infrastructure was destroyed, and Telkom Indonesia withdrew its services from East Timor. In the interim, the code +672, used by the Australian External Territories, was used to reach numbers in the territory. [3]

  7. Collect call - Wikipedia

    en.wikipedia.org/wiki/Collect_call

    A customer who needed the service had to call customer care and then request for reverse call. If the other person accepted, the call would then be connected and charged on his or her bill. In June 2019, the largest mobile service provider Safaricom started rolling out reverse call services to all its customers. To access the service, a ...

  8. Telekom Networks Malawi - Wikipedia

    en.wikipedia.org/wiki/Telekom_Networks_Malawi

    Telekom Networks Malawi is a leading telecommunications network provider in the country. As of December 2020, the telco had assets worth MWK:120,528,540,000 (US$155.6 million), with shareholders equity worth MWK:43,905,850,000 (US$56.7 million).

  9. Directory assistance - Wikipedia

    en.wikipedia.org/wiki/Directory_assistance

    The service charge may be charged per call, per minute, or a combination of the two. Originally, the per-call part could range from 5p to £16, and applies as soon as the call is answered, and the per-minute part could range from 1p to £8, and may apply either from the start of the call or after the first full minute.