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2. SIM swap scam - Wikipedia

   en.wikipedia.org/wiki/SIM_swap_scam

   A SIM swap scam (also known as port-out scam, SIM splitting, [1] simjacking, and SIM swapping) [2] is a type of account takeover fraud that generally targets a weakness in two-factor authentication and two-step verification in which the second factor or step is a text message (SMS) or call placed to a mobile telephone.

3. Jazz (mobile network operator) - Wikipedia

   en.wikipedia.org/wiki/Jazz_(mobile_network_operator)

   Jazz has over 14,000 active cell sites in the country, [10] with over 25,000 kilometers of fiber-optic cables laid. Huawei, Nokia-Siemens, and ZTE are the primary vendors for networking equipment at Jazz, including Radio Base Stations, microwave equipment and network switches.

4. Facebook for SIM - Wikipedia

   en.wikipedia.org/wiki/Facebook_for_SIM

   Facebook for SIM, also called LinqUs Facebook for SIM, is a client/server SIM application developed by international digital security company Gemalto that enabled people to access Facebook using the SMS protocol on their mobile phones, without needing a data plan. [1] [2] Facebook cooperated closely with Gemalto in the development of the ...

5. 4G - Wikipedia

   en.wikipedia.org/wiki/4G

   The fastest 3G-based standard in the UMTS family is the HSPA+ standard, which has been commercially available since 2009 and offers 21 Mbit/s downstream (11 Mbit/s upstream) without MIMO, i.e. with only one antenna, and in 2011 accelerated up to 42 Mbit/s peak bit rate downstream using either DC-HSPA+ (simultaneous use of two 5 MHz UMTS ...

6. Citycell - Wikipedia

   en.wikipedia.org/wiki/Citycell

   Citycell previously offered nine different prepaid plans. Citycell started offering prepaid plans from 2003. It was the first to offer a prepaid plan with BTTB connectivity in the same year. In 2005, it launched the Aalap Call Me plan - the first phone plan with negative tariff in the country.

7. Grameenphone - Wikipedia

   en.wikipedia.org/wiki/Grameenphone

   Grameenphone introduced pre-paid mobile phone service in Bangladesh in September 1999 via an EDGE/GPRS/3G/4G enabled network. Grameenphone was the first mobile operator in Bangladesh to offer internet via EDGE and 3G 4G services to its subscribers. [17] In March 2022, Grameenphone released embedded-SIM . [18] [19]