What two are features of the Cisco Unified CallManager Express QCT?（）
- 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
正确答案:A,D
答案解析:有
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