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2. eSIM - Wikipedia

   en.wikipedia.org/wiki/ESIM

   If the phone is stolen, it can be tracked by "find my phone" services, while a physical SIM can be removed. [34] The risk of damaging a SIM socket's delicate contacts inserting and removing a SIM is eliminated. Phones with eSIM only do not need to be built with hardware SIM holders or means to insert them.

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

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

   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.

4. Google Fi Wireless - Wikipedia

   en.wikipedia.org/wiki/Google_Fi_Wireless

   A data-only SIM card can be used on tablets and other compatible devices, including the 2013 Nexus 7, Nexus 9, and iPad Air 2. The devices must be compatible with the T-Mobile network, and users can add up to 4 data-only SIM cards in one account (before July 2019 the limit was 9 data-only SIM cards in one account). [40] [41] [42]

5. Advanced Mobile Location - Wikipedia

   en.wikipedia.org/wiki/Advanced_Mobile_Location

   Advanced Mobile Location (AML) is a free-of-charge emergency location-based service (LBS) available on smartphones that, when a caller dials the local (in country) short dial emergency telephone number, sends the best available geolocation of the caller to a dedicated end-point, usually a Public Safety Answering Point, making the location of the caller available to emergency call takers in ...

6. Enhanced 911 - Wikipedia

   en.wikipedia.org/wiki/Enhanced_911

   Many phones manufactured after 2005 have GPS receivers built in. [9] When the cellular phone detects that the user is placing an emergency call, it begins to transmit its location to a secure server, from which the PSAP can retrieve it. Cellphone manufacturers may program the phone to enable GPS function automatically (in case it has been ...

7. Wireless Emergency Alerts - Wikipedia

   en.wikipedia.org/wiki/Wireless_Emergency_Alerts

   An example of a Wireless Emergency Alert on an Android smartphone, indicating a Tornado Warning in the covered area. Wireless Emergency Alerts (WEA), formerly known as the Commercial Mobile Alert System (CMAS) and, prior to that, as the Personal Localized Alerting Network (PLAN), [1] is an alerting network in the United States designed to disseminate emergency alerts to cell phones using Cell ...

8. 3 Top Tech Stocks That Could Make You a Millionaire - AOL

   www.aol.com/3-top-tech-stocks-could-125900325.html

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9. Fixed Dialing Number - Wikipedia

   en.wikipedia.org/wiki/Fixed_dialing_number

   Fixed Dialing Number (FDN) is a service mode of a GSM mobile phone's SIM card. [1] Numbers are added to the FDN list, and when activated, FDN restricts outgoing calls to only those numbers listed, or to numbers with certain prefixes. [1] A notable exception is that emergency calls to 000, 112, 911, 999 and the like are exempt. [2]