In a multi-call scenario, a UE can receive an incoming call while an active call is already established on the UE. In response to receiving the incoming call, a process for handling the incoming call in a user-customizable manner can include accessing a history of user input received by the UE in context of handling multiple contemporaneous calls on the UE, and handling the incoming call based at least in part on the history of the user input. By the UE considering past user input received by the UE in context of handling multiple contemporaneous calls, the UE is configured to learn from past user behavior during multi-call scenarios, and adjust its call handling approach for the incoming call based on the past user behavior.