Which item correctly describes the relationships between the feature and the category it belongs?
1 Supports analog faxes and modems on a VoIP network
2 Performs call setup and teardown between VoIP networks and the PSTN
3 Interconnects segments of the same or different VoIP networks using different media types
4 Interconnects segments of the same or different VoIP network using different signaling types
A.
Gateway � 1 and 2
CUBE � 3 and 4
B.
Gateway � 1 and 3
CUBE � 2 and 4
C.
Gateway � 2 and 3
CUBE � 1 and 4
D.
Gateway � 2 and 4
CUBE � 1 and 3