To answer or not to answer: that is the question for cell phone users

People are constantly making decisions to answer or ignore cell phone calls based on inferences derived from partial information about the incoming call. To gain an understanding of this information deficit we conducted a survey study of cell phone call handling practices. The results highlight the type and extent of information desired about incoming cell phone calls. It also shows that desired information is largely unknown and often misattributed by the receiver. Our findings can be used by designers to prioritize the presentation of additional types of call related information on cell phone displays, and in so doing, empower users to make informed call handling decisions.