Once the function returns a value outside that range, either the value is passed to a different handler or the state machine exits after calling a do-nothing end-state handler.
一旦函数返回了超出范围的值，那么该值将传送到另一个处理程序，或者状态机在调用了一个什么也不做的终态处理程序后就退出。
The only way it can update the status or trigger actions to a state machine is by calling the SIP servlet routines via the handle.
它更新状态或触发对一个状态机的动作的唯一方法是通过此句柄调用 SIP servlet 例程。
I have 3-way calling on our phone, so I clicked over and called my brother-in-law's house, leaving a message on the answering machine for Arlo to call my dad when he could.
我家的电话是三路电话，所以我将父亲的电话待机，然后拨通了小叔子家的电话，在答录机上给阿洛留言让他有空时给父亲回个电话。
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