Wipro Software Engineer interview questions

I had cleared the first round of wipro NQT and i got a mail from wipro regarding the technical interview. I was asked to get ready for the interview and i got surprised as it was a telephonic round. I got surprised because everyone was having a face to face round except few unlucky guys like me. The guy that interviewed me on the phone judged me based on my voice. I had answered everything that he questioned me and i had a feeling that i would definitely crack the round. But instead they kept me waiting for 2 hours and later i got to know that i hadn't been shortlisted for the round. I was really sad it happened that way.