View All num of num See all Photos Qualcomm This employer has taken extra steps to respond to reviews and provide job seekers with accurate company information, photos, and reviews. Interested for your company?Learn More. www.qualcomm.com Employer Engaged Overview Reviews Salaries Interviews Jobs Photos Benefits 1.9k Reviews 12k Salaries 1.1k Interviews Follow Add Review or Salary Follow Add Review or Salary Interview Question RF Optimization Engineer Interview Qualcomm Unexpected question - Which is the first GSM channel used by the mobile phone? It was a fundamental question. That is why it was unexpected. Tags: See more , See less 8 Answer Add Tags Answer Interview Answer 1 Answer ▲ 0 ▼ I ask all those appying for such positions to be strong in concepts starting up from the basics. Dont ignore the basics. Sometimes, basic questions can seem difficult. Interview Candidate on Feb 16, 2013 Add Answers or Comments To comment on this, Sign In or Sign Up.