Emergent requires the use of TestGorilla before any conversation takes place. This "online assessment" tool is not only invasive (it installs an audio and video recorder on your system), it's part of the new "lazy check" process so many companies are improperly embracing.
Go online and see what people are saying about this process. Developers hate it and most everyone says it's a complete waste of time.
I admit to being a bit old school, but the last thing I'm going to do is install some 3rd party program on my computer to record my audio and video while completing a collection of IQ, Dev, and personality questions... all just to be considered for an interview.