Cisco CallManager Express is being implemented in a standalone environment with PSTN interfaces. Which two of these represent valid options for fax support? (Choose two.)

A.
Make the fax machine appear to be an SIP device by connecting it to an ATA.

B.
Make the fax machine appear to be an H.323 device by connecting it to an ATA.

C.
Make the fax machine appear to be an SCCP device by connecting it to an ATA.

D.
Connect the fax to an FXO port of the Cisco CallManager Express router.

E.
Connect the fax to an FXS port of the Cisco CallManager Express router.