RingCentral Dials Up Khosla & Sequoia

RingCentral Inc., a San Mateo, Calif.-based provider of enterprise telecom services, has secured $6.25 million of a $12.89 million Series A round, according to a regulatory filing. Backers include Khosla Ventures and Sequoia Capital. The company was founded in 1991, and was owned by Motorola between 1998 and 1999. www.ringcentral.com