Short Message/Messaging Service, commonly abbreviated as SMS, is a text messaging service component of most telephone, Internet and mobile device systems. It uses standardized communication protocols that let mobile devices exchange short text messages. An intermediary service can facilitate a text-to-voice conversion to be sent to landlines.
T-Mobile is the brand name used by some of the mobile communications subsidiaries of the German telecommunications company Deutsche Telekom AG in the Czech Republic, Poland, the United States and by the former subsidiary in the Netherlands.
Meteor Mobile Communications Limited was a GSM and UMTS mobile telecommunications company in the Republic of Ireland. They operated a GSM/GPRS/EDGE/UMTS(HSPA+) and LTE cellular communications network under licence from the Commission for Communications Regulation (ComReg), and were the third entrant in the market, after Vodafone Ireland and Three Ireland. The company was a wholly owned subsidiary of Irish telecoms network Eir, having been purchased for €420m in 2005. Meteor was the only Irish owned mobile operator in Ireland. Meteor once issued new numbers with the prefix code 085. Since the introduction of full mobile number portability in Ireland, access codes have become less relevant as mobile telephone users may now retain their mobile telephone numbers when moving between mobile network operators. As a result, Meteor customers could have numbers starting with the codes 083, 085, 086, 087, or 089.
GSM services are a standard collection of applications and features available over the Global System for Mobile Communications (GSM) to mobile phone subscribers all over the world. The GSM standards are defined by the 3GPP collaboration and implemented in hardware and software by equipment manufacturers and mobile phone operators. The common standard makes it possible to use the same phones with different companies' services, or even roam into different countries. GSM is the world's most dominant mobile phone standard.
Turkcell İletişim Hizmetleri A.Ş. is the leading mobile phone operator of Turkey, based in Istanbul. The company has 39,3 million subscribers as of September 2021. In 2015, the company's number of subscribers climbed to 68.9 million, in nine countries Largest shareholder is Turkey Wealth Fund with 26.2% ownership. It is one of the world's biggest companies list published by Fortune. Turkcell has also developed Yaani, a browser for mobile and desktop. Turkcell's general manager is Murat Erkan.
Türk Telekom is a state-owned Turkish telecommunications company. Türk Telekom was separated from Turkish Post (PTT) in 1995.
TT Mobil İletişim Hizmetleri A.Ş,, currently operating under the Türk Telekom brand, is the sole GSM 1800 mobile operator of Turkey, was founded in 2004, and has reached a nationwide customer base of 17 million as of September 30, 2015.
Dialog Axiata PLC, is one of Sri Lanka's largest telecommunications service providers, and the country's largest mobile network operator with 17.1 million subscribers which amounts to 57% of the Sri Lankan mobile market. Dialog is a subsidiary of Axiata Group Berhad which owns 83.32% controlling stake of the company, while the rest is held by the public.
A1 Bulgaria is a telecommunications company in Bulgaria ownedy by A1 Telekom Austria Group.
Mobitel was a Slovenian GSM/UMTS/LTE mobile operator. The company merged with Telekom Slovenije in 2013.
Robi Axiata Limited, doing business as Robi, is the second largest mobile network operator in Bangladesh currently owned by two major stakeholders being Axiata and Bharti Airtel. In this company, Axiata of Malaysia holds a major controlling stake of 61.82%, Bharti Airtel of India holds 28.18%, and remaining 10% stake is hold by investors in DSE and CSE.
Vodafone GmbH is a mobile telecommunications operator in Germany headquartered in Düsseldorf. It provides mobile phone, LTE, 5G, cable internet, landlines, cable TV, and IPTV services. As of the third quarter of 2021, Vodafone GmbH has more than 31 million mobile customers in Germany, making it the third-largest provider of mobile phone services in Germany. The company's headquarters are in the suburb of Heerdt in Düsseldorf, with regional offices throughout Germany. Vodafone Germany's main competitors are Telekom Deutschland and Telefónica Germany.
Vodacom Tanzania Limited is Tanzania's leading cellular network company. As of December 2020, Vodacom Tanzania had over 15.6 million customers and was the largest wireless telecommunications network in Tanzania. Vodacom Tanzania is the second telecom company in Africa, after Vodacom, to switch on its 3G High-Speed Downlink Packet Access (HSDPA) which was available only in Dar Es Salaam in early 2007.
Emtel Ltd. is a telecommunications company based in Ebene City, Mauritius. Launched on 29 May 1989 – Emtel Ltd became the first mobile telephony operator in the Southern Hemisphere. This took place under the aegis of The Currimjee Jeewanjee Group. Since 27 April 2015, Emtel holds a partnership with Airtel, Indian provider of prepaid & postpaid, wireless internet, broadband, fixed line, digital TV and mobile services.
Fenercell is a virtual mobile network operator in Turkey. It is using the Avea network and is owned by the major multi-sport club Fenerbahçe.
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.
Vodafone Telekomünikasyon Anonim Şirketi or Vodafone Turkey was formed when Telsim, which was founded by the Uzan Group, was incorporated into Vodafone group on 28 December 2005. On 24 May 2006 Telsim brand name was changed into Vodafone Turkey. Incorporated by the Vodafone Group, one of the biggest international mobile communication companies of the world in terms of revenues, Vodafone Turkey is the second biggest mobile communication company of Turkey with 20.6 million users as of 11 November 2014, an increase of 105,000 customers from the fourth quarter of 2011. As the second biggest direct international investment of Turkey, the total investment of Vodafone Turkey, including the acquisitions, since 2006 has exceeded TL 11 billion.
3G mobile telephony was relatively slow to be adopted globally. In some instances, 3G networks do not use the same radio frequencies as 2G so mobile operators must build entirely new networks and license entirely new frequencies, especially so to achieve high data transmission rates. Other delays were due to the expenses of upgrading transmission hardware, especially for UMTS, whose deployment required the replacement of most broadcast towers. Due to these issues and difficulties with deployment, many carriers delayed acquisition of these updated capabilities.
This article covers the telephone services in Turkey.
