O2, a division of Telefonica, a Spanish telecommunications company, is in talks to acquire Jajah, a VoIP startup, for about $200 million, Reuters reported today. The company had raised $35 million from various investors including Deutsche Telekom, Intel Capital and Sequoia Capital . According to some rumors, Microsoft and Cisco Systems were also bidding for Jajah, which has had its shares of ups and downs. The company is over 4 years old and...