在智能业务的呼叫中,为了向用户放音并收号,SCP向IP下发的操作是:() [" Play Annoucement"," Specialized Resourse Report"," Connect to Resourse"," Prompt and Collect User Information"]
防雷的保护对象有三,三者要统筹兼顾,这三者是()。 ["A、环境、设施和生物","B、环境、装备和植物","C、建筑、设备和大气","D、建筑、设备和人"]
在智能业务呼叫中,当用户挂机后,SSAP向SCP发送()给操作码通知该挂机事件。() [" Collected User Information"," Request Report BCSM Event"," Event Report BCSM"," Initiate DP"]
在智能业务呼叫中,SCP发操作码()给SSP,以动态配置检出点。 [" Request Status Report"," Request Report BCSM Event"," Connect to Resourse"," Event Report BCSM"]
两个交换局利用TUP消息完成一次呼叫接续控制,接续过程顺利,双方通话后被叫挂机结束通话。此次呼叫对主叫计费。下面列出了几个信令过程,请选出最有可能的一个。(信令过程以双方发送的消息顺序排列)() ["IAM、SAO、SAO、ACM、ANC、CLF、RLG","IAM、STB、CLF、RLG","IAM、SAO、SAO、ACM、ANC、CBK、CLF、RLG","IAM、SAO、SAO、ACM、ANN、CLF、RLG"]
为什么要从变压器的高压侧引出分接头?