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  2. Vodacom - Wikipedia

    en.wikipedia.org/wiki/Vodacom

    Vodacom South Africa provides 3G, 4G, and UMTS networks in South Africa, and also offers HSPA+ (21.1 Mbit/s), HSUPA (42 Mbit/s, 2100 MHz), Wi-Fi, WiMAX, and LTE services. Vodacom was the first cellular provider to introduce LTE in South Africa. [12] On 21 October 2015, Vodacom launched its fibre product to the home user. [13]

  3. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    The request has been rejected because it was anonymous. [17] 436 Bad Identity-Info The request has an Identity-Info header, and the URI scheme in that header cannot be dereferenced. [14]: p11 437 Unsupported Certificate The server was unable to validate a certificate for the domain that signed the request. [14]: p11 438 Invalid Identity Header

  4. Unstructured Supplementary Service Data - Wikipedia

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

    USSD on a Sony Ericsson mobile phone (2005). Unstructured Supplementary Service Data (USSD), sometimes referred to as "quick codes" or "feature codes", is a communications protocol used by GSM cellular telephones to communicate with the mobile network operator's computers.

  5. Roaming - Wikipedia

    en.wikipedia.org/wiki/Roaming

    The MSC then returns the MSRN to the pool for future use on another call. Afterwards, the MSC sends to the VLR a MAP SI (Send Information) message to request information like the called MS's capabilities, services subscribed to, and so on. If the called MS is authorized and capable of taking the call, the VLR sends a MAP CC (Complete Call ...

  6. South Africa's Vodacom faces protests over call-back service ...

    www.aol.com/news/south-africas-vodacom-faces...

    Vodacom was ordered in 2016 by the country's top court to pay Nkosana Makate for his role in creating the company's call-back messaging service. The Constitutional Court did not set a specific ...

  7. 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 ...

  8. Vodacom Tanzania - Wikipedia

    en.wikipedia.org/wiki/Vodacom_Tanzania

    Vodacom Tanzania Limited is Tanzania's leading cellular network company. As of December 2020, Vodacom Tanzania had over 15.6 million customers and was the largest wireless telecommunications network in Tanzania . [ 4 ]

  9. M-Pesa - Wikipedia

    en.wikipedia.org/wiki/M-Pesa

    The user interface technology of M-PESA differs between Safaricom of Kenya and Vodacom of Tanzania, although the underlying platform is the same. While Safaricom uses SIM toolkit (STK) to provide handset menus for accessing the service, Vodacom relies mostly on USSD to provide users with menus, but also supports STK. [23]