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  2. HTC Evo 4G LTE - Wikipedia

    en.wikipedia.org/wiki/HTC_Evo_4G_LTE

    The Evo 4G LTE shares features with its GSM counterpart, the HTC One X—such as the same dual-core 1.5 GHz processor used by the One X's LTE variant, a 4.7-inch screen, and Android 4.1 with HTC's Sense 4.0 interface. The Evo 4G LTE was also the first phone built with an all aluminum frame, leaving only a small plastic piece to allow the Sim ...

  3. No. 4 Electronic Switching System - Wikipedia

    en.wikipedia.org/wiki/No._4_Electronic_Switching...

    The No. 4 Electronic Switching System (4ESS) is a class 4 telephone electronic switching system that was the first digital electronic toll switch introduced by Western Electric for long-distance switching. It was introduced in Chicago in January 1976, to replace the 4A crossbar switch. [1]

  4. List of telephone switches - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone_switches

    HS 52 (new developed register system, introduced in 1953, based on a new 120-point selector, which was in fact a 4 x 30-point uniselector with 2 x 4 brushes offset by 180°, no zero position) HS 52 A (new variant of HS 52 from 1973 with an almost full-electronic register evaluation unit called 'Umrechner', not processor based but centralized ...

  5. HTC Evo 4G - Wikipedia

    en.wikipedia.org/wiki/HTC_Evo_4G

    The HTC Evo 4G (trademarked in capitals as EVO 4G, also marketed as HTC EVO WiMAX ISW11HT in Japan) is a smartphone developed by HTC Corporation and marketed as Sprint's flagship Android smartphone, running on its WiMAX network. The smartphone was launched on June 4, 2010. It was the first 4G enabled smartphone released in the United States. [9 ...

  6. HTC Evo Shift 4G - Wikipedia

    en.wikipedia.org/wiki/HTC_Evo_Shift_4G

    The HTC Evo Shift 4G (trademarked in capitals as EVO Shift 4G or The Evo Has an Alter Evo) is a smartphone developed by HTC Corporation and marketed as the concurrent/sequel to Sprint's flagship Android smartphone, running on its 4G WiMAX network. The smartphone launched on January 9, 2011.

  7. HTC Evo Design 4G - Wikipedia

    en.wikipedia.org/wiki/HTC_Evo_Design_4G

    The EVO Design 4G is also Sprint's last 4G phone utilizing its WiMAX network. [ 1 ] On May 30, 2012, Boost Mobile released the EVO Design 4G as a pre-paid phone, shipping with Android 4.0 and Sense 3.6 pre-installed, an update that later became available for the Sprint version.

  8. HTC Evo 4G+ - Wikipedia

    en.wikipedia.org/wiki/HTC_Evo_4G+

    HTC EVO 4G+ (codenamed HTC Rider) is an Android smartphone developed by HTC Corporation, released exclusively in South Korea through Korea Telecom in 2011.A variation of HTC Evo 3D, the device is distinguished by its single 8 MP rear camera, which means all the 3D specificities are gone, and is running on Korea Telecom's WiBro network.

  9. Improved Mobile Telephone Service - Wikipedia

    en.wikipedia.org/wiki/Improved_Mobile_Telephone...

    These whip antennas looked much like those used for CB radios and were about 19 in. long (1/4 wavelength at 155 MHz). These mobile telephone systems required a large amount of power (10 to 15 amperes at 12 volts) and this was supplied by thick power cabling connected directly to the automobile's battery.