You need to configure Cisco Unified Communications Manager Express with a dial peer that points to the Cisco Unity Express IP address. Which three conditions must be fulfilled? (Choose three.)
A. Session Initiation Protocol version 1 must be used.
B. Session Initiation Protocol version 2 must be used.
C. Voice on demand must be enabled.
D. The dual tone multifrequency relay option must be set to match Cisco Unity Express.
E. G.911 codec must be used.
F. Voice activity detection must be disabled.
