image thumb99 iSkoot raises $19 million in Series CMobile VoIP solutions provider, iSkoot has added more cash to its treasure chest by raising $19 million in series C. The current round was participated by returning ventures Charles River Ventures, Khosla Ventures, Jesselson Capital Corp and ZG Ventures and led by Vision Opportunity Master Fund. The company had earlier raised more than $15 million and also acquired Social.IM, an instant messaging client.