Dynamic and configurable response to incoming phone calls

A non-transitory computer-readable storage media to store instructions that, when executed by a processor, cause the processor to:

• receive, in a user device, a phone call from a caller device;
• simultaneously display, on a display screen of the user device, (i) an indication of the phone call, (ii) a first option to decline the phone call, and (iii) a second option to decline the call with a customized audio message that is based on a calendar of appointment;
• subsequent to displaying the indication of the phone call, receive a selection of the second option from a user, wherein the selection of the second option indicates that the phone call is to be declined with a customized audio message based on the calendar of appointment,
• receive one or more parameters from the calendar of appointment of a user account of the user device, the calendar being at least in part stored in the user device;
• based on the one or more parameters, facilitate generation of an audio message, wherein at least a part of the audio message is not stored prior to receiving the one or more parameters;
• facilitate transmission of the audio message to the caller device;
• and
• subsequent to the transmission of the audio message to the caller device, disconnect the phone call based on the selection.