| 摘要 |
A telephone switchboard apparatus including a communications control unit which exchanges IP audio data with IP telephone terminals, an MG resource which converts the IP audio data to non-IP audio data, and vice versa, and an MG resource managing unit which manages and controls the MG resource, wherein, when a call from any one of the IP telephone terminals is found to be an emergency call, the MG resource managing unit secures and allocates the MG resource to transmission of the emergency call.
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