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__NOTOC__ Jaxtr is a social communications company that melds together global calling, SMS, and social networking. Founded by Phillip Mobin and Touraj Parang in October 2005,〔“Jaxtr - Free MySpace Phone Calls,” Mashable. 14 December 2006. http://mashable.com/2006/12/14/jaxtr-free-myspace-phone-calls/comment-page-2/〕 jaxtr uses Voice over Internet Protocol to offer competitive rates as well as free international and long distance calling. Some key differentiators for jaxtr in its market include allowing phone-to-phone calls to and from any mobile and landline phones, offering social networking focused on voice (café jaxtr), requiring no software downloads or access pins, and giving users local Direct Inward Dialing (DID) phone numbers. Offered in 56 countries,〔See http://jaxtr.com/user/freeconnect.jsp〕 these numbers allow users in those countries to dial a local phone number which would ring a long distance or international destination phone. Jaxtr also offers users a set number of global SMS messages each month. Jaxtr reports having over 10 million users in 220 countries in 2008. In June 2008, they raised $10 million in a Series B round of venture capital funding from Lehman Brothers Venture Partners. In the same month, they also launched their paid services.〔“Jaxtr Raises 10 million to expand Cheap International Calls,” VentureBeat. 23 June 2008. http://venturebeat.com/2008/06/23/jaxtr-raises-10-million-to-expand-cheap-international-calls/〕 In October, Jaxtr laid off thirty percent of its employees, and its CEO, Konstantin Guericke, was fired. Currently, the company is located in Menlo Park, CA. On 14 June 2009, Hotmail Founder Sabeer Bhatia's Sabsebolo acquired Jaxtr for an unknown amount. Jaxtr shall function with the same brand name and help Sabsebolo with its large userbase. == Technology == While Skype popularized the concept to make calls through personal computers for consumers, jaxtr builds on that concept by allowing calls to be routed through VoIP to and from both mobile and landline phones. As a hybrid of telephony and Web technologies, jaxtr is built with Java components and MySQL database servers, which run a protocol-independent calls engine that combines users' voice and text conversations. Jaxtr uses open source software throughout the system--memcached, Asterisk, and OpenSER SIP server among others. Jaxtr provides local phone numbers in numerous countries around the world by contracting with wholesale Direct Inward Dialing (DID) service providers such as DIDX . Providing users with these DIDs allows them to dial a local number, which is routed through jaxtr’s VoIP system, and connects with the person .they are calling internationally. As a result, the caller pays their service provider only the standard charge for local calling, instead of international toll. 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「jaxtr」の詳細全文を読む スポンサード リンク
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