与网络类型和运营商无关地并且甚至在终端特定时，处理(例如显示)预定数据，例如预付呼叫存款余额。
The predetermined data, for example a pre-paid call credit balance, is processed, e. g. displayed, regardless of the network type and operator and even when the terminal is specific.
在一实施例中，以多播呼叫诸如组呼叫，可能根据预定的准则通过单播信道或多播信道而被发送到活动用户，诸如多个活动用户。
In one embodiment, a multi-cast call, such as a group call, may be transmitted to active users via unicast channel (s) based on a predetermined criteria, such as number of active users.
当预定数量的参与者存在和可用时，会议服务器发起会议呼叫。
When the predefined number of participants are present and available, the conference server initiates the conference call.
对讲机允许用户进行呼叫到一个预定义的的目标。
Intercom allows a user to place a call to a predefined target.
对讲机允许用户进行呼叫到一个预定义的的目标。
Intercom allows a user to place a call to a predefined target.
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