Which Cisco Unified Communications Manager default global conference setting should be changed to ensure fraud prevention?

Which Cisco Unified Communications Manager default global conference setting should be changed to ensure fraud prevention?
A . Advanced Ad Hoc Conference Enabled
B . Enable Click-to-Conference for Third-Party Applications
C . Drop Ad Hoc Conference
D . Block OffNet to OnNet Transfer
E . MCU Conference Bridge Custom Layout Index

View Answer

Answer: C

Explanation:

Cisco Unified Communications Manager Administration provides the clusterwide service parameter, Drop Ad Hoc Conference, to allow the prevention of toll fraud (where an internal conference controller disconnects from the conference while outside callers remain connected). The service parameter settings specify conditions under which an ad hoc conference gets dropped. Reference: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/8_6_1/ccmsys/accm-861­cm/a05confb.html