The purpose of this study is to investigate factors related to dysfunctional aspects of cellular phone communication (1) passive interpersonal relationships, (2) restraints, (3) anxiety towards information, (4) escape, (5) lower abilities in verbal expression, and (6) annoyance. In this study I focused on the following factors: Bantsu sentaku (that is, selective answering to telephone calls by using the number display service), affinity to cellular phones, and uncertainty avoidance. A survey was conducted to clarify the relationship between the factors by a questionnaire method during January and February 2004. The subjects were 517 Japanese university students from Ibaraki prefecture. The total of valid responses was 502. Through multiple regression analysis, the following relationships were found. Bantsu sentaku was linked positively to (3) anxiety towards information and (2) restraints. Affinity to cellular phones was linked positively to (2) restraints, 5) lower abilities in verbal expression, (4) escape and (6) annoyance . Uncertainty avoidance was linked positively to (6) annoyance, (1) passive interpersonal relationships, and negatively to (2) restraints. This study concludes that further research on cellular phone communication literacy education is necessary.