3 rounds - tech, 2tech and HR. be good with communication and Linux and ITSM to get into this position. Also learn new technologies and basics of telecom and salary discussion with HR.

HR call, tech round, manager round, HR discussion, final round. Most of the questions will be based on your prior experience, discussing about your short and long-term goal, you need to be very clear and genuine, show them how much you want that job