99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

單項(xiàng)選擇題

Which statement is true about a distributed call control environment and the processing of dialed digits from an IP phone?()

A.The router that is directly connected to the IP phone will look up the called number in its call routing table.
B.The router that is directly connected to the IP phone will inform its call agent when a service request is detected.
C.When the IP phone is picked up,the IP phone initiates the service request.
D.The directly connected router passes the collected digits to its call agent,and the call agent looks up in its call-routing table the called number.

微信掃碼免費(fèi)搜題