What are three Cisco Unified CallManager features？ （）
- A、 programming interface to external applications
- B、 FXS and FXO port negotiation
- C、 AutoQos VoIP trust boundaries
- D、 signaling and device control
- E、 LLQ for voice and video traffic
- F、 directory and XML services
正确答案:A,D,F
答案解析:有
微信扫一扫手机做题