| 摘要 |
PROBLEM TO BE SOLVED: To attain a proper operation by informing a terminal equipment that new containment of terminal equipments is not available in the case that the contained terminal equipment number exceeds a containing available terminal equipment number to prevent mis-connection of terminal equipments of a number in excess of the exchange capability. SOLUTION: The system is provided with a master set 1 making exchange and one or a plurality of terminal equipments and the master set 1 and each terminal equipment are provided with a means sending/receiving control information. Furthermore, the master set 1 is provided with a means managing number of containment available terminal equipments and a means reporting management information to terminal equipments as part of the control information. When the contained terminal equipment number exceeds the containment available terminal equipment number, it is reported to the terminal equipments that new containment is not available and each terminal equipment receiving the notice informs the users of it. |
