| 摘要 |
<p>PURPOSE:To easily realize remote control multiplex and line concentration economically by setting logical channel identifiers differently simultaneously among plural subscribers decided as a subscriber group in advance and not giving the identifiers in duplicate. CONSTITUTION:When a subscriber line exchange 3 receives a setup request from any of subscriber's equipments 1-1 to 1-n in one subscriber group the exchange refers to a subscriber group VCI allocation table 31, selects a logic channel identifier not in use and informs the selected identifier to a caller subscriber's equipment and a called subscriber's equipment. Then any number of the subscriber's equipments 1-1 to 1-n allocated to the selected logic channel identifier is registered in the subscriber group VCI allocation table 31.</p> |
