Methods, devices, and systems related to performing an operation responsive to a voice call are described. In an example, a method can include storing data representing a number of contact lists on a memory of a first computing device, wherein the data representing the number of contact lists includes data representing credentials of a number of contacts on the number of contact lists, receiving data representing a voice call and credentials of a second computing device at the first computing device, comparing the data representing the credentials of the second computing device with the data representing the credentials of the number of contacts on the number of contact lists to determine which contact list the second computing device is included in, and performing an operation at the first computing device at least partially based on which contact list the second computing device is included in.