Which call processing feature overrides the Do Not Disturb settings on a Cisco IP phone?

A.
park reversion for remotely parked calls by a shared line

B.
hold reversion

C.
remotely placed pickup request by a shared line

D.
pickup notification

E.
terminating side of a call back

Explanation:
Hold Reversion and Intercom
Hold reversion and intercom override DND (both options), and the call gets presented normally.

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/7_1_2/ccmfeat/fsgd-712-
cm/fsdnd.html#wp1072487