Online video conferencing tech firm Vidyo has picked up $15 million in a third round of funding. Menlo Ventures led the round; previous investors Rho Ventures, Sevin Rosen Funds and Star Ventures also participated. New Jersey-based Vidyo has raised $38 million in funding since it was founded in 2005; it will use the new financing for product development, sales and marketing. The company also announced that it hired Ezra Sofer as its first CFO. Softer joins Vidyo from Finjan, where he held the same role; prior to that he served as group VP, finance at Amdocs.