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Deltathree Inc. is an American company engaged in the business of voice over IP telephony services. Users can either use the free softdialer product and make calls through their PC, or sign up for the broadband phone service and receive an Analog Telephony Adapter (ATA)or the linksys PAP2 device. Both devices allows users to plug a standard phone into their internet connection and make calls independent of the PC. ==History== Deltathree was founded in 1996 by Dmitry Goroshevsky, Sophia Babkove and Damian Kudriavtsev, which later brought Elie Wurtman and Jacob Davidson as investors and developed an Internet-based international low cost calling service using VoIP technology as a "PC to Phone" solution. RSL Communications, an investment firm owned by Ronald Lauder, acquired a majority stake in Deltathree the following year, before the company listed on the NASDAQ stock exchange in November 1999.〔 In 2001 RSL Communications sold its stake in the company to billionaire entrepreneur Yitzhak Tshuva who later sold his shares at a profit. The company's shares were delisted by NASDAQ in March 2008 after falling below $1, forcing Deltathree stock to trade through the OTC Bulletin Board. As of December 2009, Deltathree announced that it has sold a majority stake (54.3%) to Australian company D4 Holdings for $1.17 million in cash. Under the agreement D4 also has the right to pick up an additional 30 million shares at 4 cents a share for the next ten years. In July 2010, deltathree Launched joip Mobile Phone Application for Consumers on Leading Cellular Operating Systems. joip voip Mobile dialer services Offers Savings on Mobile Phone Bills for Smartphone customers. Joip voip Mobile (mobile.joip.com) is a new cellular phone application providing low cost mobile calls over GSM as well as WiFi networks. It currently offers calling packages to the United States, Canada, United Kingdom and over 150 countries worldwide. Cellular operating systems supported by joip Mobile currently include the iPhone, Google Android and Nokia Symbian, with support for the Windows Mobile operating system and Blackberry expected soon. http://mobile.joip.com 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「Deltathree」の詳細全文を読む スポンサード リンク
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