I applied through a recruiter. The process took 1 week. I interviewed at Core BTS (Liberty, NY) in Nov 2014
Interview
The initial Core BTS interview was mostly informal hosted at an informal restaurant, but all parties were well dressed and professional. It was very stress free and we just had a conversation. If you are confident of your skills then you will do fine.
The next step was the formal interview hosted at the employers location. This was mostly a conversation with random parties talking to each other and throwing questions at me. I felt very relaxed and confident.
A week later I was re-asked my salary requirements and processed by HR.
Interview questions [1]
Question 1
The most difficult question I had was VoIP related. I am weak on VoIP so I was honest.