A Customer Has Avaya Communications Systems Located in Detroit, Chicago

A customer has Avaya Communications systems located in Detroit, Chicago and Denver. All three systems are connected via ISDN Tie trunks. The customer is implementing multi-site Best Services Routing (BSR) to intelligently compare resources, and to find the best call center to service their calls. Status polls from the Denver location to Detroit consistently fail. Which two reasons would cause this feature? (Choose two.)

A) The expected queue time for the skill in Detroit is being suppressed.
B) There is no BSR application for the active Vector Directory Number (VDN) .
C) The trunks that tie Denver to Detroit are not Distributed Communication Systems (DCS+) or QSIG.
D) The agents in Detroit are all in auxiliary work mode.