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2. Wi-Fi calling - Wikipedia

   en.wikipedia.org/wiki/Wi-fi_calling

   Wi-Fi calling, also called VoWiFi, [1] refers to mobile phone voice calls and data that are made over IP networks using Wi-Fi, instead of the cell towers provided by cellular networks. [2] Using this feature, compatible handsets are able to route regular cellular calls through a wireless LAN (Wi-Fi) network with broadband Internet , while ...

3. List of mobile virtual network operators in the United States

   en.wikipedia.org/wiki/List_of_mobile_virtual...

   Yes, int'l calling and texting, but on AT&T network only [66]? AT&T network available to business customers only. [66] [67] Build Wireless T-Mobile, AT&T: Personal, Business Yes Yes Yes It is pay as you go, customers pay per GB of data as it is used. Rollover data is available. Yes, only for SMS Yes, with compatible device. Yes Yes, for an ...

4. Voice over NR - Wikipedia

   en.wikipedia.org/wiki/Voice_over_NR

   Voice over New Radio or Voice over 5G (acronym VoNR or Vo5G) is a high-speed wireless communication standard for voice services over 5G networks, utilizing mobile phones, data terminals, IoT devices, and wearables. [1] Like 4G networks, 5G does not natively support voice calls traditionally carried over circuit-switched technology. [2]

5. AT&T Mobility - Wikipedia

   en.wikipedia.org/wiki/AT&T_Mobility

   However, the second Android phone AT&T released was the HTC Aria [80] [81] [82] which was announced on June 14, 2010 and released on June 20, 2010. The Samsung Captivate, which is part of the Galaxy S family, was released on AT&T's network on July 18, 2010. In addition to devices released on AT&T were a line of handsets manufactured by Motorola.

6. List of mobile network operators in the United States

   en.wikipedia.org/wiki/List_of_mobile_network...

   Acquired by Verizon Wireless and AT&T Mobility. [39] AT&T Wireless Services: GSM: EDGE: 22: October 2004: Acquired by Cingular Wireless, which later rebranded to AT&T Mobility. [40] Big Sky Mobile: GSM: EDGE: Unknown: 2017: Sold spectrum licenses to AT&T and T-Mobile and exited the business. [41] Blaze Wireless: GSM, UMTS: EDGE, HSPA+, LTE ...

7. AT&T apologizes for massive system failure but rules out ...

   www.aol.com/t-outage-latest-phone-network...

   AT&T has around 250 million customers, making it the US’s biggest phone network by some distance. The company said all its entire network had been restored around 3pm ET. Follow for all the ...