| 摘要 |
According to one embodiment, a main apparatus includes a first memory which stores a first management table in which an emergency ID specifying a first phone terminal to be an emergency notice destination among the plurality of phone terminals on the packet communication network and positional information indicating a connection position of the first phone terminal onto the packet communication network are associated with each other, a second memory which stores a second management table in which a terminal of a second phone terminal differing from the first phone terminal and positional information indicating a connection position of the second phone terminal onto the packet communication network are associated with each other, and a controller which refers to the first and the second management tables to execute a communication connection between the first and the second phone terminals based on the reference result.
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