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HMD Global. Develops Nokia-branded feature phones and smartphones since 2016. Bittium. France. Archos. Alcatel Mobile. Owned by Nokia and used under license by TCL Technology. Crosscall [ fr] Groupe Bull.
GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM . Time-division multiple access (TDMA) provides multiuser access by chopping up the channel into sequential time slices. Each user of the channel takes turns to transmit and receive signals.
This is a list of 3D-enabled mobile phones. The devices on this list typically use autostereoscopic displays. Some devices may use other kinds of display technology, like holographic displays or multiscopic displays. Some devices employ eye tracking in aiming the 3D effect to the viewer's eye. Opic Technologies, Inc. offers a 3D smartphone with ...
RFinder ("repeater finder") is a subscription-based website and mobile app. RFinder's main service is the World Wide Repeater Directory ( WWRD ), which is a directory of amateur radio repeaters. RFinder is the official repeater directory of several amateur radio associations. RFinder has listings for several amateur radio modes, including FM, D ...
For a more comprehensive list of mobile phone operators, see Mobile country codes. Terrestrial [ edit ] This is a list of the world's thirty largest terrestrial mobile phone network operators measured by number of subscriptions.
The best-selling touchscreen phones are the Apple iPhone 6 and 6 Plus, both released in 2014. Together, they have sold over 222 million units. The best selling flip phone is the Motorola RAZR V3, released in 2004. It sold over 130 million units. The best-selling slider phone is the Samsung E250, released in 2006.
This is a list of Guinness World Records that have been discontinued for various reasons. This may include that the record poses a threat to health or the environment. Record. Reason to discontinue. Last appearance in the records book. References. "The largest ever mass balloon release". Environmental concerns (see Balloonfest '86 )
A satellite phone is a type of mobile phone that connects to other phones or the telephone network by radio link through satellites orbiting the Earth instead of terrestrial cell sites, as cellphones do. Therefore, they can work in most geographic locations on the Earth's surface, as long as open sky and the line-of-sight between the phone and ...