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RingCentral Completes $12 Million Funding Round with Sequoia Capital and Khosla Ventures

Innovative Company Revolutionizing Small Business Telecommunications With "Software as a Service" Model

Redwood City, CA, September 24, 2007 – RingCentral, Inc., which allows small businesses to unify and intelligently manage all their phone, mobile, fax and email communications, today announced that Sequoia Capital and Khosla Ventures have completed a financing round of $12 million.

With the only phone management service developed specifically to meet the needs of small businesses and mobile professionals, RingCentral to date has attracted 40,000 customers, and is signing up thousands more each month.

“Using RingCentral, even the smallest businesses get more functionality than most large business phone systems, at a small fraction of the cost," said Doug Leone, partner, Sequoia Capital. "With 40,000 paying customers, it's clear this company has a winning service.”

“This is the next wave of software as a service," said David Weiden, partner, Khosla Ventures. "While Internet, broadband and mobile communications have become pervasive in the past several years, the basic business phone system has not advanced, and that presents a fundamental .”

To further strengthen its executive team, RingCentral recently hired an experienced chief financial officer. Dinesh Lathi brings nearly 15 years of financial and operating experience to the RingCentral executive team. Prior to joining RingCentral as CFO, Lathi was a vice president at eBay (NASDAQ:EBAY) where he worked on both the Finance and Trust & Safety teams. Lathi holds a BS from the Massachusetts Institute of Technology and an MBA from the Harvard.

About RingCentral, Inc.
RingCentral puts businesses and professionals In Touch and In Control™ by unifying and intelligently managing all their phone, mobile, fax and email communications with a single phone number and an easy-to-use online control center. The company is leveling the playing field for small businesses by offering voice communications capabilities available only to large corporations until recently. RingCentral combines a toll-free or local number with advanced call management, PBX, voicemail and Internet fax, enabling customers to set up multiple extensions with voicemail, automatically screen, forward and place calls, take voicemail, send and receive faxes, and receive message alerts. With RingCentral, businesses never miss an important call, or waste time on unwanted calls. RingCentral is headquartered in Redwood City, Calif. For more information visit www.ringcentral.com.

About Sequoia Capital
Since 1972, Sequoia Capital has provided early stage and growth stage venture capital for very smart founders and executives who have turned great ideas into sustainable companies of enduring value. As the "Entrepreneurs Behind the Entrepreneurs," Sequoia Capital's Partners have worked with accomplished innovators and operators who built great franchises such as Agile Software, Apple Computer, Aruba Wireless Networks, Cisco Systems, Flextronics, Google, Informix, Isilon Systems, Linear Technology, LSI Logic, Microchip, NetScaler, NetScreen, Network Appliance, nVidia, Oracle, PayPal, Pixelworks, Yahoo!, YouTube, Aruba Networks and Netezza. To learn more about Sequoia Capital visit www.sequoiacap.com.

About Khosla Ventures
Khosla Ventures offers venture assistance, strategic advice and capital to entrepreneurs. The firm helps entrepreneurs extend the potential of their ideas in both traditional venture areas like the Internet, computing, mobile, and silicon technology arenas but also supports breakthrough scientific work in clean technology areas such as bio-refineries for energy and bioplastics, solar, battery and other environmentally friendly technologies. Vinod Khosla was formerly a General Partner at Kleiner Perkins and founder of Sun Microsystems. Vinod has been labeled the #1 VC by Forbes and Fortune recently labeled him as one the nation's most influential ethanol advocates, noting "there are venture capitalists, and there's Vinod Khosla." Vinod Khosla founded the firm in 2004 and was joined by partners David Weiden and Samir Kaul, as well as chief scientific officer Doug Cameron in 2006. Khosla Ventures is based in Menlo Park, California. www.khoslaventures.com.