A communication station has a circuit that receives an incoming voice call from a calling party, and an acknowledgement mechanism that produces an acknowledgement message sent to the calling party in response to the incoming call if a user of the communication station does not answer the call. In the examples, the communication station sends short message service (SMS) or multimedia message service (MMS) acknowledgement message to the calling party. Also, a scheduling mechanism may be provided for adding a calendar entry to a calendar implemented in the communication station so as to remind the user about the acknowledged incoming call.