Refer to the exhibit.
A collaboration engineer has integrated Cisco Unity Express with Cisco Unified
Communications Manager Express and is experimenting with the MWI feature. With the current configuration, no MWI change occurs when leaving new messages or after playing new messages.
Which two changes are needed to correct the configuration? (Choose two.)
A . ccn subsystem sip
mwi sip outcall
B . ccn subsystem sip
mwi envelop-info
C . sip-ua
no mwi-server
mwi-server ipv4:172.16.1.254 expires 3600 port 5060 transport udp
D . ccn subsystem sip
mwi sub-notify
E . sip-ua
no mwi-server
mwi-server ipv4:172.16.1.253 expires 3600 port 5060 transport tcp notify
F . sip-ua
no mwi-server
mwi-server ipv4:172.16.1.253 expires 3600 port 5060 transport udp unsolicited
Answer: B,C