An administrator needs to help a remote employee make a free call to an international destination. The administrator calls the employee, then conferences in the international party. The administrator drops the call, and the employee and the international party continue their conversation. Which action prevents this type of toll fraud in the Cisco UCM?
A. Set service parameter “Advanced Ad Hoc Conference” to 2.
B. Set service parameter “Drop Ad Hoc Conference” to “Do not allow outside parties.”
C. Set service parameter “Advanced Ad Hoc Conference” to FALSE.
D. Set service parameter “Drop Ad Hoc Conference” to “When Conference Controller leaves.”
