The Attentive Cellphone uses a low-cost EyeContact sensor and speech analysis to detect whether its user is in a face-to-face conversation. We discuss how this information can be communicated to callers to allow them to employ basic social rules of interruption. We discuss a prototype Attentive Cellphone based on a Compaq iPAQ handheld augmented with a low-cost wearable eye tracker capable of detecting when a user is in a face-to-face conversation.

Presented at ACM CHI 2002. Minneapolis, MN. USA.