Refer to the exhibit.

A voice engineer is investigating call routing to an office with phone number 5551000 because
callers hear dial tone as soon as calls into the office connect. An H.323 gateway forwards calls to
a Cisco Unified Communications Manager at IP 192.168.17.15. The running configuration shown
in the exhibit is seen upon investigation into the dial peers. Which command resolves the issue?

A.
direct-inward-dial in dial-peer voice 1 pots configuration

B.
incoming called-number in dial-peer voice 1 voip configuration

C.
direct-inward-dial in dial-peer voice 1 voip configuration

D.
session-target ipv4: 192.168.17.15 in dial-peer 1 voice pots configuration