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2. Doro (company) - Wikipedia

   en.wikipedia.org/wiki/Doro_(company)

   Doro AB, known as Doro, is a Swedish consumer electronics and assistive technology company focused on the elderly and improving the lives of seniors. Founded in 1974 in Sweden as a challenger to the state-run telecommuncations monopoly, the company develops communications products and services designed primarily for the elderly, such as mobile phones and telecare systems.

3. Martin Cooper (inventor) - Wikipedia

   en.wikipedia.org/wiki/Martin_Cooper_(inventor)

   In 1986 Cooper co-founded Cellular Payphone Inc. (CPPI), the parent company of GreatCall, Inc., Innovator of the Jitterbug cell phone (in partnership with Samsung). GreatCall is the first complete end-to-end value-added service provider in the cellular industry to focus on simplicity with its primary emphasis on senior citizens. Arraycomm

4. Arlene Harris (inventor) - Wikipedia

   en.wikipedia.org/wiki/Arlene_Harris_(inventor)

   The advent of prepaid cellular service generated rapid cellular adoption in developing countries where consumer credit was scarce. Harris’ team used some of the same realtime techniques employed in prepaid cellular service for the development of systems created to prevent the fraudulent use of cellular phones – a problem that caused revenue ...

5. Tethering - Wikipedia

   en.wikipedia.org/wiki/Tethering

   Tethering or phone-as-modem ( PAM) is the sharing of a mobile device's Internet connection with other connected computers. Connection of a mobile device with other devices can be done over wireless LAN ( Wi-Fi ), over Bluetooth or by physical connection using a cable, for example through USB . If tethering is done over WLAN, the feature may be ...

6. History of mobile phones - Wikipedia

   en.wikipedia.org/wiki/History_of_mobile_phones

   Consumer demand was strong despite the battery life, weight, and low talk time, and waiting lists were in the thousands. Many of the iconic early commercial cell phones such as the Motorola DynaTAC Analog AMPS were eventually superseded by Digital AMPS (D-AMPS) in 1990, and AMPS service was shut down by most North American carriers by 2008.

7. 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 three major cellular carriers in the country, AT&T Mobility, T-Mobile US, and Verizon. [1] [2] In 2016, MVNOs across the nation such as Metro PCS, Boost Mobile, Cricket Wireless, and Tracfone brands served about 36 million subscribers.