Two Cisco Unified Communications Manager clusters have recently been installed. One is in
Tokyo and the other in Chicago connected by a WAN link. You have started the configuration of a
SIP trunk and you are integrating the dial plans. All phones in Tokyo can call all phones in
Chicago, but no phones in Chicago can call Tokyo phones.
Which two statements are possible causes? (Choose two.)

A.
The SIP trunk is configured from Tokyo to Chicago, but not from Tokyo to Chicago.

B.
The CSS of the Chicago phones does not include the partition of the route pattern to point to
Tokyo.

C.
Tokyo phones are in a CSS that is not in the partition of the route pattern to call from Tokyo to
Chicago.

D.
The Tokyo SIP trunk inbound CSS does not contain the partition of the Tokyo phones.

E.
The SIP trunk in Chicago is in a CSS that is not in the partition of the Chicago phones.