User defined locale files can be stored in which two locations?（）

A.1 
B.2 
C.4 
D.5
E.a number equal to the number of languages supported by Cisco Unity Express 
F.a number equal to the number of languages supported by Cisco Unity CallManager Express

A.autodetection of Cisco router components 
B.automatic download of system parameters from central site 
C.standards-based autoconfiguration using SIP and SCCP 
D.support for barcode-scanned input of IP-phone MAC addresses and phone types 
E.automatic identification of phone types and MAC addresses upon booting the Cisco Unified CallManager Express router