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  2. SMS hubbing - Wikipedia

    en.wikipedia.org/wiki/SMS_hubbing

    SMS Hubbing allows operators to manage a single legal, technical and billing relationship rather than hundreds of additional roaming agreements for SMS messaging only. Mobile operators have been gradually outsourcing non-core functions to invest on areas that need a closer management of the operator, as well as focusing on areas that have a ...

  3. Mobile network codes in ITU region 6xx (Africa) - Wikipedia

    en.wikipedia.org/wiki/Mobile_network_codes_in...

    Airtel: Bharti Airtel: Operational: GSM 900 / GSM 1800 / UMTS 900 / UMTS 2100 / LTE 800 / 5G 2500: Former Celtel, then Zain [12] 639: 04: Mobile Pay Kenya Limited: Unknown: Unknown [38] 639: 05: Airtel: Bharti Airtel: Unknown: Unknown: Former Econet Wireless, Essar Telecom; network sold to Safaricom in 2014, subscribers moved to Airtel [39] [40 ...

  4. List of mobile virtual network operators in the United States

    en.wikipedia.org/wiki/List_of_mobile_virtual...

    Yes, unlimited int'l talk and text from U.S. to >35 countries; unlimited talk, text, and data (1 GB 4G LTE, then unlimited 2G unless additional data packs purchased) while roaming in >35 countries [335] Yes [338] [339] CDMA not supported, only LTE (thus non-WiFi voice is VoLTE). Reportedly uses Sprint as primary network and only roams to AT&T ...

  5. Customized Applications for Mobile networks Enhanced Logic

    en.wikipedia.org/wiki/Customized_Applications...

    Capabilities to handle mobility events, such as (Not-)reachability and roaming; Control of GPRS sessions and PDP contexts; Control of Mobile Originated SMS through both circuit-switched and packet-switched serving network entities; Interworking with SoLSA (Support of Localised Service Area). Support for this interworking is optional;

  6. Roaming - Wikipedia

    en.wikipedia.org/wiki/Roaming

    An SMS welcome to Proximus customers who have roamed onto T-Mobile (now EE) in the UK. Roaming is a wireless telecommunication term typically used with mobile devices, such as mobile phones. It refers to a mobile phone being used outside the range of its native network and connecting to another available cell network.

  7. Closed user group - Wikipedia

    en.wikipedia.org/wiki/Closed_User_Group

    Closed User group (CUG) is a supplementary service provided by the mobile operators to mobile subscribers who can make and receive calls from any member associated within the group.

  8. Mobile network codes in ITU region 3xx (North America)

    en.wikipedia.org/wiki/Mobile_network_codes_in...

    This list contains the mobile country codes and mobile network codes for networks with country codes between 300 and 399, inclusively – a region that covers North America and the Caribbean. Guam and the Northern Mariana Islands are included in this region as parts of the United States.

  9. Unstructured Supplementary Service Data - Wikipedia

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

    The user submits a code corresponding to the service available. USSD can be used to provide independent calling services such as a callback service (to reduce phone charges while roaming), enhance mobile marketing capabilities or interactive data services. USSD is commonly used by prepaid GSM cellular phones to query the available balance.