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  2. Comparison of open-source mobile phones - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_open-source...

    No kill switch for other sensors. [6] 2015 Allwinner arm64 (Allwinner violates the GPL) [2] Quectel EG25-G. Ships with proprietary firmware isolated from CPU with a USB bus. [2] [5] More secure, better-featured free replacement exists, but can't ship due to regulatory threats. [4] proprietary Wi-Fi/Bluetooth firmware, [5] in /lib/firmware. [6]

  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. Cellular frequencies in the United States - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies_in...

    Carriers can acquire optional non-renewable priority access licenses a size of census tract for three years. All network equipment using the band is managed by Spectrum Access System that assigns channels are regulates power levels of the network devices in order to share the spectrum in the most efficient manner. [ 8 ]

  5. Switching mobile carriers will become much easier this year - AOL

    www.aol.com/news/2016-03-23-ofcom-carrier...

    Today, Ofcom's announced its formal proposals, volunteering a couple of different options it's settled on to the hassle out of moving providers. Switching mobile carriers will become much easier ...

  6. Cellular network - Wikipedia

    en.wikipedia.org/wiki/Cellular_network

    As the phone user moves from one cell area to another cell while a call is in progress, the mobile station will search for a new channel to attach to in order not to drop the call. Once a new channel is found, the network will command the mobile unit to switch to the new channel and at the same time switch the call onto the new channel.

  7. List of wireless network protocols - Wikipedia

    en.wikipedia.org/wiki/List_of_wireless_network...

    Also, low mobility users can aggregate multiple channels to get a download throughput of up to 1 Gbit/s [2] Flash-OFDM: Flash-OFDM: Mobile Internet mobility up to 200 mph (350 km/h) Flash-OFDM: 5.3 10.6 15.9: 1.8 3.6 5.4: Mobile range 30 km (18 miles) Extended range 55 km (34 miles) HIPERMAN: HIPERMAN: Mobile Internet: OFDM: 56.9: Wi-Fi: 802.11 ...