I applied through an employee referral. I interviewed at Wateen Telecom (Lahore) in Jun 2022
Interview
Total Three Interviews. Two Technical Interviews and One HR Interview. One was conducted in Data Center Thokar Niaz Baig and the second one in Head Office. Good understanding of OSI Model and Basic SIP Call flow is adequate.
Interview questions [1]
Question 1
Subnetting and OSI Model particularly Transport Layer as VOIP works on UDP.