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Integrated Digital Enhanced Network (iDEN) is a mobile telecommunications technology, developed by Motorola, which provides its users the benefits of a trunked radio and a cellular telephone. It was called the first mobile social network by many technology industry analysts. iDEN places more users in a given spectral space, compared to analog cellular and two-way radio systems, by using speech compression and time-division multiple access (TDMA).
A SIM card is an integrated circuit (IC) intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices. Technically the actual physical card is known as a universal integrated circuit card (UICC); this smart card is usually made of PVC with embedded contacts and semiconductors, with the SIM as its primary component. In practise the term "SIM card" refers to the entire unit and not simply the IC.
A SIM lock, simlock, network lock, carrier lock or (master) subsidy lock is a technical restriction built into GSM and CDMA mobile phones by mobile phone manufacturers for use by service providers to restrict the use of these phones to specific countries and/or networks. This is in contrast to a phone that does not impose any SIM restrictions.
A prepaid mobile device, also known as a, pay-as-you-go (PAYG), pay-as-you-talk, pay and go, go-phone, prepay or burner phone, is a mobile device such as a phone for which credit is purchased in advance of service use. The purchased credit is used to pay for telecommunications services at the point the service is accessed or consumed. If there is no credit, then access is denied by the cellular network or Intelligent Network. Users can top up their credit at any time using a variety of payment mechanisms.
Prepaid telephone calls are a popular way of making telephone calls which allow the caller to control spending without making a commitment with the telephone company.
Virgin Mobile USA was a no-contract Mobile Virtual Network Operator. It used Sprint's network for coverage. It licensed the Virgin Mobile brand from United Kingdom-based Virgin Group. Virgin Mobile USA was headquartered in Kansas City, Missouri, and provided service to approximately 6 million customers.
TracFone Wireless, Inc. (TFWI) is an American prepaid, no-contract mobile phone provider. TFWI is a subsidiary of Verizon Communications, and offers products and services under several brands. It operates as a mobile virtual network operator (MVNO), holding agreements with the three largest United States wireless network operators to provide service: AT&T Mobility, T-Mobile US, and Verizon.
7-Eleven SpeakOut Wireless is a mobile virtual network operator brand for prepaid wireless service. The brand was launched in April 2003 by the 7-Eleven convenience store chain in the United States, and expanded to Canada in November 2005. 7-Eleven SpeakOut ceased operating in the United States in 2010.
The Motorola StarTAC, first released on January 3, 1996, is often assumed to be the first ever clamshell (flip) mobile phone. Technically, however, NEC had been releasing flip phones on NTT Docomo's PDC Mova network long before 1996, namely the TZ-804 and TZ-1501, both respectively launched in 1991 and late 1994. Another early precursor of this form factor was the Grillo, which was designed in Italy by Richard Sapper and Marco Zanuso in 1965. The StarTAC is the successor of the MicroTAC, a semi-clamshell design first launched in 1989. Whereas the MicroTAC's flip folded down from below the keypad, the StarTAC folded up from above the display. In 2005, PC World named the StarTAC as the 6th Greatest Gadget of the Past 50 Years. The StarTAC was among the first mobile phones to gain widespread consumer adoption; approximately 60 million StarTACs were sold.
Truphone is a GSMA accredited global mobile network that operates its service internationally. The company is headquartered in London and has offices in ten other countries, being spread across four continents.
BT Mobile is a mobile virtual network operator (MVNO) provided by BT Consumer; a division of BT Group in the United Kingdom that was launched in March 2015. It uses the EE network via an MVNO agreement signed in March 2014 as well as using the spectrum BT won in the 2013 4G auction. EE is now owned by BT following a successful acquisition that was officially completed on 29 January 2016. BT Mobile operates alongside BT Business Mobile which is provided by the BT Business and Public Sector division. BT Mobile launched as a SIM-only service and had more than 400,000 customers as of 5 May 2016.
Virgin Mobile is a mobile phone service provider operating in the United Kingdom. It is owned by Virgin Media which is part of Virgin Media O2. The company was launched by Virgin Group in 1999 as the world's first mobile virtual network operator (MVNO). As a virtual operator, Virgin Mobile does not maintain its own network but uses the O2 network.
Transatel is a telecom corporation headquartered in Paris, La Défense, and led by the founders Jacques Bonifay (CEO) and Bertrand Salomon. NTT Communications took a majority stake in the company on 28 February 2019, transferred to NTT Ltd. on 1 July 2019.
2degrees is a New Zealand telecommunications provider. Its mobile network launched on 4 August 2009 after nine years of planning. 2degrees offers prepaid and pay-monthly mobile services as well as fixed-line phone and broadband services. 2degrees is the third-largest wireless carrier in New Zealand, with 1.3 million subscribers as of July 2015.
Lycamobile is a British mobile virtual network operator (MVNO) operating in 60 countries. The brand is active in Australia, Austria, Belgium, Denmark, France, Germany, Ireland, Italy, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, Russia, South Africa, Spain, Sweden, Switzerland, Tunisia, Uganda, Ukraine, the United Kingdom and the United States. The bulk of Lycamobile revenue is claimed to be generated from its SIM products. Lycatel, also a part of Lyca Group, targets customers within expatriate and ethnic markets that want to make international calls.
Globalcell Mobile was a mobile virtual network operator (MVNO) was based in the UK and was established in late 2008.
FreedomPop is a wireless Internet and mobile virtual network operator based in Los Angeles, California. The company provides "free" IP mobile services including free data, text and VoIP and sells mobile phones, tablets and broadband devices for use with their service. It was founded by CEO Stephen Stokols and Steven Sesar, and owned and operated by STS Media Inc until June 2019 when it was successfully sold. FreedomPop uses networks of T-Mobile and AT&T in the United States, Three in the UK, Yoigo in Spain, and Telcel in Mexico.
Mobile by Sainsbury's was a mobile virtual network operator (MVNO) in the UK, operated by Sainsbury's between July 2013 and January 2016, using the Vodafone UK network.
References
- ↑ "Ikea launches ready-made mobile phone service". the Guardian. 2008-08-03. Retrieved 2022-11-15.
- ↑ "T-Mobile – the network behind IKEA Family Mobile, the UK's newest mobile service". Archived from the original on 2010-01-29. Retrieved 2009-08-12.
- ↑ T-Mobile signs Ikea MVNO – Ikea claims its prepay service is 25 per cent cheaper than any rival offering Archived 2008-08-08 at the Wayback Machine , Mobile News, 4 August 08
- ↑ "Mobile Network Comparison – Compare mobile networks".
- ↑ "Family Mobile to close, but unused credit will be refunded". MoneySavingExpert.com. Retrieved 2017-12-19.
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