| 摘要 |
A telephone having a self-screening mode. The self-screening mode made be switched on and off via an enabling circuit. When activated, the self-screening mode informs the caller that the call is inconvenient. However, the caller is allowed the opportunity to choose between a request for a call back, instigate a call some time later, or in urgent cases allowed to be put through to the receiver. The caller chooses the mode by hanging up in one of two distinct time modes or by simply waiting through a third time mode to be put through to the receiver in urgent cases. The caller may be notified of the time-windows by signal sounds and the length of time of each time window may be adjusted by time loops. Messages to support the caller may also be provided during the time-windows. Alternately, the caller may be prompted with a message to depress different keys to choose the different options.
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