Which three statements are true about virtual routing? (Choose three.)

Which three statements are true about virtual routing? (Choose three.)
A . CTI is a required component for multi-site configuration
B . Virtual routing allows the call centers to be transparent, and act as a virtual call center that is transparent to the user
C . Virtual routing involves only contacts that are non-voice related such as email and chat
D . Virtual routing can be implemented in single-site or multi-site configuration
E . Virtual routing determines where to route the call according to the criteria: Look-ahead interflow or Advanced look-ahead interflow

Answer: B,C,E