Which protocol is used for communication between Cisco Unity Express and Cisco Unified
Communications Manager Express?
A.
H.323
B.
G.711
C.
MGCP
D.
Q.931
E.
SIP
Explanation:
Link:
http://www.cisco.com/en/US/docs/voice_ip_comm/unity_exp/rel8_5/install/prereq.html#wp1112818