| 摘要 |
PURPOSE: A device of controlling a switch connection for a P-T-MP(Point To Multipoint) call of a fixed connection line in an open switching system is provided to perform PVC P-T-MP call connection setup/cancellation for a call control part of an upper controller and a control part of a lower switch, thereby using an interface for controlling the lower switch without any correction. CONSTITUTION: GSMP(General Switch Management Protocol) controllers(111,121) generate connection management messages for a P-T-MP call of a fixed connection line. A GSMP slave protocol processing module(131) decides types of the connection management messages. A switch connection control module(133) confirms a connected state of a switch according to the decided types of the messages, and creates/cancels routing tags for connecting the switch. Device controllers(141,143) connect the switch according to the routing tags. The GMSP controllers(111,121) generate messages showing connection setup, cancellation, verification, and changes for the P-T-MP call of the fixed connection line.
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