單項選擇題

What best describes an FXO interface？（）

A.analog trunks that provide the Survivable Remote Site Telephony (SRST) feature
B.analog trunks that provide VoIP gateway functionality
C.analog trunks that connect a gateway to plain old telephone service (POTS) device such as analog phones, fax machines, and legacy voice-mail systems
D.analog trunks that connect a gateway to a central office (CO) or private branch exchange (PBX)

你可能感興趣的試題

多項選擇題

What are two steps that are taken when a router converts a voice signal from analog to digital form？（）

A.sampling
B.packetization
C.quantization
D.serialization

單項選擇題

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.

日韩欧美亚洲 _ 欧美亚洲一区 _ 日本亚洲欧美 _ 亚洲精品欧美 国产白袜脚足J棉袜在线观看_亚洲熟妇av一区二区三区_久久天天躁狠狠躁夜_精品众筹模特私拍在线

What best describes an FXO interface？（）

你可能感興趣的試題

What are two steps that are taken when a router converts a voice signal from analog to digital form？（）

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

日韩欧美亚洲 _ 欧美亚洲一区 _ 日本亚洲欧美 _ 亚洲精品欧美国产白袜脚足J棉袜在线观看_亚洲熟妇av一区二区三区_久久天天躁狠狠躁夜_精品众筹模特私拍在线

What best describes an FXO interface？（）

What are two steps that are taken when a router converts a voice signal from analog to digital form？（）

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