In this study, we developed a robot teleoperation function using a robot service network protocol (RSNP) unit and common operation interface, and experimented using 12 robots. From the teleoperation screen on the web page, the robot can be remotely controlled by buttons while checking the camera image on the robot side. We have confirmed that RSNP communication can be introduced by connecting the developed RSNP unit to the robots in various ways. This allowed us to remotely control not only mobile robots but also communication robots, robot arms, and various other robots from a common communication method and operation screen. In addition, the experiment confirmed the teleoperation of 12 robots and 17 operators. However, the operation method was not sufficient because there was no feedback of the operation amount on the operation screen. We will continue to improve the remote-control system to make it easier for an operator to control robot systems.