| 摘要 |
The present disclosure provides a method for filtering an incoming call to a communication device. The communication device stores a default ring duration M and a default call frequency N. The communication device may calculate the ring duration of an incoming call, and further determines whether the ring duration reaches the default ring duration M. If the ring duration does not reach the default ring duration M, the communication device determines whether a call frequency of the incoming call reaches the default call frequency N. If the call frequency reaches the default call frequency N, the communication device blocks a phone number of the incoming call.
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