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| industry= Telecommunications | products= Fixed Telephony Mobile Telephony Internet Access Cable Television Leased Lines Data Transmission | revenue= A$8.93 billion (March 2013) | net_income= A$764 million (March 2013)〔 | num_employees= more than 8,700 (March 2013) | homepage= (optus.com.au ) }} Singtel Optus Pty Limited is the second largest telecommunications company in Australia. It is a wholly owned subsidiary of Singtel since 2001. The company primarily trades under the Optus brand, while maintaining several wholly owned subsidiary brands, such as Virgin Mobile Australia in the mobile telephony market, Uecomm in the network services market and Alphawest in the ICT services sector. To provide services, Optus mostly owns and operates its own network infrastructure, and also uses the wholesale services of the National Broadband Network. Optus no longer uses the wholesale services of Telstra. It provides services both directly to end users and also acts as a wholesaler to other service providers. Through its Optus 'Yes' brand, it provides broadband, and wireless internet services. Other wholesale services include Satellite and 4G Mobile, in fact Optus is the only 4G wholesaler and the largest satellite wholesaler in Australia. The company was originally known as Aussat Pty Limited prior to privatisation, when it became Optus Communications Pty Limited. It was later renamed to Cable & Wireless Optus Pty Limited before changing again to its present name. The word "Optus" is Latin for "to choose" or "to decide". ==Overview== Key Optus products and services include: * Fixed Telephony * * Residential and Commercial POTS for local and long distance telephony * * Commercial VoIP and VoDSL * * Intelligent Network applications, such as free call, 1300 and Interactive voice response services * Mobile Telephony * * GSM/GPRS utilising 900 MHz/1800 MHz covering 98.5% of the population * * 3G/HSPA provided by 2100 MHz for large regional centres and metropolitan and 900 MHz for regional as well as metropolitan coverage. The dual frequencies covers 98.5% (98.8% with the use of an external antenna) of the population〔 * * 4G/LTE provided by 700 / 1800 / 2100 / 2300 / 2600 MHz Covering 'nearly' 90% of the Australian population (As of July 2015). * * Satellite Telephony covering all of Australia. * Internet Access * * NBN * * Residential Dial-Up Internet in all states * * Residential Broadband Internet (via cable and DSL) in all states (except the Northern Territory). * * Satellite Internet * * Commercial and Wholesale internet access * * Secure Gateway services for Federal Government departments * Cable Television * * Optus Television service provided in Sydney, Melbourne & Brisbane, including Foxtel Digital * Leased Lines * Data Transmission Retail services are sold to customers via phone, internet or through retail outlets, especially franchise chains such as Optus World, Network Communications, Strathfield, Telechoice, and Allphones. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Optus」の詳細全文を読む スポンサード リンク
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