When determining how many Cisco Voice Gateways are required for use with the Cisco Unified Customer Voice Portal, in which two of the following call transfer methods do you not consider the length of time that the caller is talking to an agent? (Choose two.)
A.
when all agents are Cisco Unified Contact Center Enterprise agents
B.
when all agents are using third-party ACDs, and calls are connected to those ACDs via TDM ports on an egress Cisco Voice Gateway
C.
when all agents are using third-party ACDs, and calls are connected to those ACDs via SS7 signaling through a Cisco Unified Contact Center Enterprise NIC
D.
when all agents are using third-party ACDs, and calls are connected to those ACDs via carrier “Take Back and Transfer” (also know as “Transfer Connect”)