| 摘要 |
PURPOSE:To omit the unnecessary channel switching operations by adding the information on an additional switching goal to the destination information to give them to a return request means and making this request means set a channel changing request to be given to the added destination and the information on the channel return state to the destination information and give these set request and information to a channel changing means. CONSTITUTION:When a request is received to switch one a communication channel to change it to another channel before the former channel is reset and to connect a terminal equipment 30 to another on-line program means 10, a destination information adding means 13 adds the information on an added switching goal to the stored destination information and gives these information to a return request means 12. The means 12 sets a channel changing request to an address shown by the added destination information and the information showing destination of a channel return state to the added destination informa tion to give these information a channel changing means 21. Thus it is possible to omit the unnecessary channel switching operations at addition of channel switching operations and also to prevent a terminal operator from performing the control of the decision and the order of channel switching operations. |
