They schedule you to come in for a 2.5 hour block of interviews, four interviews. The first and last interviews aren't technical, rather with managers, the first giving you a really good description of the job. The middle two interviews are more technical in nature, but more along the lines of "describe some projects you've done" rather than "write code on this whiteboard". The last interview is with a manager, more of a "get to know you" kind of talk. All told, the process is relatively painless.

Applied through campus website. Three round interviews, HR, technical person and manager. HR just asked available date, desired salary and some company culture like catching up deadlines. Technical interview asks something on my resume and a few question about wireless communication. I also got some question from manager but didn't answer well. Like the "violate" keyword in c/c++. Did not get offer. Informed me about two weeks later.