Which two configuration snippets resolve this issue?

After integrating Cisco Unity Express with Cisco Unified Communications Manager Express, users report that the system does not respond to their digit presses .

Which two configuration snippets resolve this issue? (Choose two.)
A . dial-peer voice 6800 voip
destination-pattern 5…
session protocol sipv2
session target ipv4:10.3.6.127
dtmf-relay sip-kpml
codec g729r8
B . dial-peer voice 6800 voip
destination-pattern 5…
session protocol sipv2
session target ipv4:10.3.6.127
dtmf-relay sip-notify
codec g711ulaw
C . dial-peer voice 6800 voip
destination-pattern 5…
session protocol sipv2
session target ipv4:10.3.6.127
dtmf-relay rtp-nte
codec g711ulaw
D . dial-peer voice 6800 voip
destination-pattern 5…
session protocol sipv2
session target ipv4:10.3.6.127
dtmf-relay sip-kpml
codec g711ulaw
E . dial-peer voice 6800 voip
destination-pattern 5…
session protocol sipv2
session target ipv4:10.3.6.127
dtmf-relay sip-notify
codec g729r8