What two are features of the Cisco Unified CallManager Express QCT? (Choose two.)

A.
Support for barcode-scanned input of IP-phone MAC addresses and phone types

B.
Standards-based autoconfiguration using SIP and SCCP

C.
Automatic identification of phone types and MAC addresses upon booting Cisco Unified CallManager Express Router

D.
Automatic download of System parameters from Central Site

E.
Autodetection of Cisco Router components