For over two decades, telephone banking has steadily become a useful feature and all banks have tried to provide this feature as part of their services. In this paper, we present an empirical investigation to study the role of personal and social characteristics on acceptance of new telephone banking services. The proposed study designs two questionnaires and distributes them among 384 randomly selected people who use telephone banking in city of Tehran, Iran. Using structural equation modeling, the study examines various hypotheses and the results of our survey indicate that there were some positive and meaningful relationships between perception usefulness and users’ attitude, perception and ease of use, perception and intention to use as well as perception and intention to use. In addition, the study has detected a negative and meaningful relationship between personal risk and intention to use and perception of personal time and intention to use among mobile users.