One of my former lab-mates ( from the University) referred me for a position at Cisco; I didn't even know what the position was (he thought it was a perfect fit for me). I got a call out of the blue (on a Saturday) from a person from Cisco, and asked whether I have time for an interview at that time. Unfortunately, I was travelling, and asked him whether we could prearrange a time, so that I could make myself available. He was willing to do that, but, he wanted to have the interview within the next couple of days. So, we scheduled it for the next day. During the interview he first asked me about my PhD research work. That went on for about 15min. He seemed mildly impressed (I think). Then he moved on to few behavioral, and technical questions. The technical questions were from Algorithms and DS, C/C++, OOP and Networking. Apart from couple of questions, I did well in the rest. The most difficulty I had was understanding the thick accent (South East asian, I think) my interviewer had. But, he was really friendly. Finally he went through my resume and asked me several questions about my experience and background. I thought he got more interested in my after that round, since according to him "I have an impressive resume". The whole interview went on for about 1hr, and he concluded by asking to contact him in about couple of weeks, if I didn't hear from him or Cisco. I followed up the interview by sending a thank you email to my interviewer; he once again asked me to contact him if I didn't hear from him soon. But, even after repeated emails (after waiting for 3 weeks), I am yet to hear back from him or Cisco. Overall, I had a positive impression about the interview (even though they called out of the blue, and asked me to interview in a hurry ~ I haven't had that experience with any other company). However, not getting back to me with their decision (don't care what it is), is really unprofessional for a company like Cisco. I don't think I would consider Cisco in the future, even though I am in the Networking field.