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Upptalk (formerly known as Yuilop〔(Upptalk FAQs ),.〕) is a proprietary voice-over-IP service and software application that provides mobile phone numbers in the cloud and allows users to call or text any phone for free whether or not the device receiving the calls and texts has the Yuilop application. Yuilop provided phone numbers can be accessed across any device on the internet (IP) and are reachable via regular phone calls (PSTN) from any landline or mobile phone, and SMS. Calls and chats to other users within the yuilop network service are free of charge. Unlike most other VoIP services, yuilop does not charge for off network communication. Calls and SMS to landline telephones and mobile phones use virtual credits that are earned for free through participating in promotional activities and using the app. Yuilop does not require credit for national calls and SMS in the U.S. Yuilop has additional features, including instant messaging, group chat, and location, and photo sharing. Competitors include Skype, Viber and Google Voice. == Overview == Yuilop was created by former simyo CEO, Jochen Doppelhammer in November 2010.〔 Yuilop's headquarters are located in Barcelona, Spain and the app is available in over 200 countries including the United States, United Kingdom, Germany, Italy, Spain, Israel, and Mexico. The app currently has approximately 5 million users and is available on Android, iOS, Windows Phone, BlackBerry OS.〔(【引用サイトリンク】url=http://yuilop.com/about-us/ )〕 As of July 2013, Yuilop has raised approximately $9 million in funding from investors such as Nauta Capital,〔(【引用サイトリンク】url=http://www.crunchbase.com/financial-organization/nauta-capital )〕 Shortcut Ventures GmbH,〔(【引用サイトリンク】url=http://www.crunchbase.com/company/shortcut-ventures-gmbh )〕 Bright Capital, and the Spanish government.〔〔(【引用サイトリンク】url=http://www.crunchbase.com/financial-organization/bright-capital#src12 )〕 Yuilop's services are split into two main categories: *Calls and texts made to other Yuilop users using VoIP. *Calls and SMS made to mobile phones and landlines and virtual numbers like Skype and Google Voice by connecting to the Public Switched Telephone Network (PSTN). 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「Upptalk」の詳細全文を読む スポンサード リンク
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