Hiring Manager from RGB Networks called me on telephone for initial screen. He looked at whether I am comfortable with the skill set for the requirement. Then he called me for 1:1 interview with his team . Mostly his team asked me questions on my recent project , architecture, skill set used in the project. One guy asked me to write the code for string reverse and other than that everything is form your resume. But hiring manager asked me mostly on embedded, SNMP, networking and unix basics.