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2. iPhone (1st generation) - Wikipedia

   en.wikipedia.org/wiki/IPhone_(1st_generation)

   The iPhone [10] (retroactively referred to as the iPhone 2G, [11] iPhone 1, [12] or original iPhone [11]) is the first iPhone model and the first smartphone designed, developed, and marketed by Apple Inc. After years of rumors and speculation, it was officially announced on January 9, 2007, [13] and was released in the United States on June 29 ...

3. Comparison of mobile phone standards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_mobile_phone...

   Comparison of mobile phone standards. Cellular network standards and generation timeline. This is a comparison of standards of wireless networking technologies for devices such as mobile phones. A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1979 and the early to mid-1980s.

4. Cellular frequencies - Wikipedia

   en.wikipedia.org/wiki/Cellular_frequencies

   Cellular frequencies. Cellular frequencies are the sets of frequency ranges within the ultra high frequency band that have been assigned for cellular-compatible mobile devices, such as mobile phones, to connect to cellular networks. [1] Most mobile networks worldwide use portions of the radio frequency spectrum, allocated to the mobile service ...

5. LTE (telecommunication) - Wikipedia

   en.wikipedia.org/wiki/LTE_(telecommunication)

   v. t. e. In telecommunications, long-term evolution ( LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM / EDGE and UMTS / HSPA standards. It improves on those standards' capacity and speed by using a different radio interface and core network improvements.

6. Access Point Name - Wikipedia

   en.wikipedia.org/wiki/Access_Point_Name

   Access Point Name. An Access Point Name ( APN) is the name of a gateway [1] between a mobile network ( GSM, GPRS, 3G, 4G and 5G) and another computer network, frequently the public Internet. [2] A mobile device making a data connection must be configured with an APN to present to the carrier. The carrier will then examine this identifier to ...

7. FaceTime - Wikipedia

   en.wikipedia.org/wiki/FaceTime

   From iOS 6 onwards, FaceTime for the iPhone and iPad has supported FaceTime calls over cellular networks (3G or LTE) provided the carrier enabled it, which by mid-2013 virtually all carriers worldwide have allowed. FaceTime Audio uses about three megabytes of data for every five minutes of conversation, with FaceTime Video uses significantly more.