I had a telephonic round. There was an issue with telephone at Quantium interviewer's(two in a round) conference room, informed once about it in in the started. They didn't care about it. Even informed multiple times while interview was going. Suddenly call was disconnected, they didn't call me back. Worst experience with these guys. Wasted my time. I attended another two interviews with other MNC companies on the same week, got selected in those two. Looks Quantium interviewers were less experience than me. They don't know how to talk/ give respect to the experience people like me. According to me they interviewed with foolish questions, their mindset is like fresher's mindset. In my career I attended very less interviews, in that Quantium is worst experience. My suggestion: don't go for telephonic round at Quantium. If you are working in MNC, ask them to schedule a face to face round.