使用这项功能可以盯着呼叫者拨打的数字，判断是否应当完成该呼叫。

A PBX feature that looks at the digits dialed by the caller to figure whether the call should be completed.

youdao

使用这项功能可以盯着呼叫者拨打的数字，判断是否应当完成该呼叫。

A PBX feature that looks at the digits dialed by the caller to figure whether the call should be completed.

youdao