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A retailer inputs the number of the mobile phone to be reloaded and selects either the denomination of the airtime balance or a pre-subscribed prepaid offer. These offers may include call and text promos (e.g., Smart AllNet30), mobile internet promos (e.g., Smart Giga Video 50), and prepaid broadband offer top-ups such as FamLoad Video for ...
Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.
Typically, APN settings are configured automatically when SIM is inserted or eSIM is activated. [1] An 'Access Point Name' (APN) is the name of a gateway [ 2 ] between a mobile network ( GSM , GPRS , 3G , 4G and 5G ) and another computer network , frequently the public Internet .
The IMSI is often used as a key in the home location register ("subscriber database") and the MSISDN is the number normally dialed to connect a call to the mobile phone. A SIM has a unique IMSI that does not change, while the MSISDN can change in time, i.e. different MSISDNs can be associated with the SIM.
On October 21, 2020, PLDT announced that Sun's prepaid service was integrated into Smart Prepaid, leaving its postpaid service under "Sun" branding. [3] On April 25, 2022, Sun's postpaid service was merged with Smart Postpaid, resulting to the cessation of all Sun Postpaid plan and add-on offerings.
A prepaid mobile phone provides most of the services offered by a mobile phone operator. The main difference is that with prepaid phones, payment for service is made before use. As calls and texts are made, and as data is used, deductions are made against the prepaid balance amount until no funds remain (at which time services stop functioning).
In telecommunication, a public land mobile network (PLMN) is a combination of wireless communication services offered by a specific operator in a specific country. [1] [2] A PLMN typically consists of several cellular technologies like GSM/2G, UMTS/3G, LTE/4G, NR/5G, offered by a single operator within a given country, often referred to as a cellular network.
The universal integrated circuit card (UICC) is the physical smart card (integrated circuit card) used in mobile terminals in 2G , 3G , 4G , and 5G networks. The UICC ensures the integrity and security of all kinds of personal data, and it typically holds a few hundred kilobytes. [1]