Past work experiences and how it relates to technical support, personal opinions on how to handle personal/business related situations. Why you would be an asset to the company and how you have been to past employers.

Initial interview just took 15 to 20 mins. All about resume, your availability, salary expectation and basic questions. Must be fluent in english. It's online and fast, straight forward. No need to worry much but you have to still practice your communication.