In a typical mobile call, for example, the system must locate and identify the subscriber, what type of plan the subscriber uses, how much time or money is in the account, and other information. 例如,在典型的移动呼叫过程中,系统必须定位和识别用户,确定用户使用的套餐类型,账户剩余时间或金额,以及其他信息。
When a subscriber initiates a call, authentication may occur to confirm the subscriber's identity. 当用户发起一个呼叫,鉴权中心将会对用户进行鉴权。
A signal sent in the backward direction to indicate that the call has been placed in a waiting queue because the called subscriber is busy but has the camp on facility. 有被叫用户指示器的电话局反向发送的一种信号,表示呼叫已排入等待队列(因为被叫用户忙,但装有预占设备)。
One agreement, on network interconnection, defines how the two will share revenue when a subscriber of one places a call to a subscriber of the other. 一份关于互联的协议确定了一家公司的用户打电话给另外一家公司的用户时,这两家公司如何分享收入的问题。
IMS includes several modules, such as call session control, Home Subscriber Server ( HSS), Media Gateway Control Function ( MGCF), Media Gateway ( MGW), Multimedia Resource Function Controller ( MRFC) and so on. IMS包括呼叫会话控制、归属用户服务器(HSS)、媒体网关控制(MGCF)、媒体网关(MGW)以及媒体资源控制(MRFC)等功能模块。