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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.
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 ...
Airtel Gabon has 829,000 customers and its market share stood at 61%. [citation needed] India: airtel India: Airtel is the second largest mobile operator with 348.3 million customers as of May 2021. [86] Kenya: Airtel Kenya: Airtel Kenya is the second largest operator and has 8.6 million subscribers. [87] Madagascar: airtel Madagascar
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.
Airtel also operates 3G services in Maharashtra & Goa, Kolkata, Gujarat and Punjab circles through an agreement with Vodafone. This gives Airtel a 3G presence in all 22 out of 22 circles in India. Airtel is fined by DoT 3.50 billion for not stopping offering 3G Services through Roaming Pacts outside its Licensed Zones in Seven Circles.
The Preferred Roaming List (PRL) is a database residing in a wireless (primarily CDMA) device, such as a cellphone, that contains information used during the system selection and acquisition process. In the case of R-UIM -based CDMA devices, the PRL resides on the R-UIM .
Banglalink uses the following numbering scheme: +88019N 1 N 2 N 3 N 4 N 5 N 6 N 7 N 8 & +88014N 1 N 2 N 3 N 4 N 5 N 6 N 7 N 8. Where '+880' is the ISD code for Bangladesh and is needed only in case of dialing from outside Bangladesh.
A direct-to-mobile gateway is a device that has built-in wireless GSM connectivity. It allows SMS text messages to be sent and/or received by email, from Web pages or from other software applications by acquiring a unique identifier from the mobile phone's Subscriber Identity Module, or "SIM card".