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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. Contact AOL customer support

    help.aol.com/articles/account-management...

    The AOL Help site is your starting point for getting support from AOL. Support may come via phone, chat, social media or help articles, depending on the question or issue you have.

  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. 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]

  6. 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 ...

  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. Telkom Indonesia - Wikipedia

    en.wikipedia.org/wiki/Telkom_Indonesia

    Telkom Indonesia is a dominant and largest provider of fixed line services due to owning most of Indonesia's copper network. [5] Telkom also runs telephone exchanges, trunk network and local loop connections for its fixed-line telephones. Currently, Telkom is responsible for approximately 8.3 million telephone lines in Indonesia. [5]

  9. Telkomsel - Wikipedia

    en.wikipedia.org/wiki/Telkomsel

    It is headquartered alongside Telkom in the Telkom Landmark Complex. Telkomsel is the largest cellular telecommunication carrier in the country with 169.5 million customer base as of 2020. [ 2 ] The company operates their GSM network on the 900–1800 MHz frequency range, as well as 3G , 4G , and 5G services on other frequencies.