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  • Over-the-air programming

    serch.it?q=Over-the-air-programming

    Over-the-Air programming (OTA) refers to various methods of distributing new software, configuration settings, and even updating encryption keys to devices like cellphones, set-top boxes or secure voice communication equipment (encrypted 2-way radios). One important feature of OTA is that one central location can send an update to all the users, who are unable to refuse, defeat, or alter that update, and that the update applies immediately to everyone on the channel. A user could "refuse" OTA but the "channel manager" could also "kick them off" the channel automatically. In the context of the mobile content world these include over-the-air service provisioning (OTASP), over-the-air provisioning (OTAP) or over-the-air parameter administration (OTAPA), or provisioning handsets with the necessary settings with which to access services such as WAP or MMS. As mobile phones accumulate new applications and become more advanced, OTA configuration has become increasingly important as new updates and services come on stream.

  • TracFone Wireless

    serch.it?q=TracFone-Wireless

    TracFone Wireless, Inc. is a prepaid mobile virtual network operator in the United States, Puerto Rico, and the US Virgin Islands. TracFone Wireless is a subsidiary of Mexico's largest telecommunications company América Móvil, and offers products and services under multiple brands which include TracFone, NET10 Wireless, Total Wireless, Straight Talk, SafeLink Wireless, Telcel América, SIMPLE Mobile, Page Plus Cellular, GoSmart Mobile, and Walmart Family Mobile. TracFone Wireless operates as a mobile virtual network operator (MVNO), holding agreements with the United States' largest wireless network operators to provide service using their networks, including Verizon Wireless, AT&T Mobility, T-Mobile US, Sprint Corporation, and U.S. Cellular. TracFone Wireless had 25.668 million subscribers in 2015.

  • Voice over LTE

    serch.it?q=Voice-over-LTE

    iPhone with active VoLTE CallVoice over Long-Term Evolution (VoLTE) is a standard for high-speed wireless communication for mobile phones and data terminals - including IoT devices and wearables. It is based on the IP Multimedia Subsystem (IMS) network, with specific profiles for control and media planes of voice service on LTE defined by GSMA in PRD IR.92. This approach results in the voice service (control and media planes) being delivered as data flows within the LTE data bearer. This means that there is no dependency on (or ultimately, requirement for) the legacy circuit-switched voice network to be maintained. VoLTE has up to three times more voice and data capacity than 3G UMTS and up to six times more than 2G GSM. Furthermore, it frees up bandwidth because VoLTE’s packets headers are smaller than those of unoptimized VoIP/LTE.

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