Robot common platform, web-robot and cloud robotics are becoming active area of research. On the other hand, although voice communication is key to service robots in the life space, existing platforms are insufficient to the problem. In this paper, we propose integration of voice communication and robot control into the robot service platform by extending RSNP (Robot Service Network Protocol). This voice communication realize conversation with a target via a robot. Voice data are continuously transmitted by bidirectional communication. Moreover, since this service is integrated into RSNP, robot operation, image transfer and voice communication are implemented on a single platform. The use of this platform enables to develop the services easily and efficiently, without the expertise of voice communication. Furthermore, system-integrators are able to construct a robot system, without peculiar equipment for voice communication. As a result, such effective robot services as monitoring/watching in the fields of welfare and care easily provided, which can be brought to market inexpensively and quickly. We also report the results of our implementation and verify the effectiveness of our voice communication service on the robot service platform.
