Which three of the following options should always be selected when configuring a SIP trunk for
Cisco Unity Connection integration to Cisco Unified Communications Manager? (Choose three.)

A.
Accept Unsolicited Notification

B.
Enable Digest Authentication

C.
Accept Out-of-Dialog REFER

D.
Enable Application Level Authentication

E.
Accept Replaces Header

F.
Accept Presence Subscription

G.
X.509 Subject Name