| 摘要 |
PROBLEM TO BE SOLVED: To provide a satellite communication method, a slave station, a master station, and a management station by which when communication is performed by an IP telephone connected to the slave station through a DMA type satellite communication line, address registration processing, incoming/outgoing call processing, etc. of the IP telephone can be performed. SOLUTION: An invite control signal is generated on the basis of an Invite message sent from the IP telephone connected to the salve station 2, and transmitted from the slave station 2 to the master station 1 through a CSC line. The master station 1 retrieves address information on an opposite-side IP telephone by a SIP server device, and transmits a reply signal based upon the retrieval result to the slave station 2 through the CSC line. The slave station 2 generates an acknowledge message to acknowledge the IP telephone. COPYRIGHT: (C)2009,JPO&INPIT |
