| 摘要 |
A foldable cellular telephone has a microphone, a speaker, a foldable telephone main body, a control unit for transmitting/receiving a connection control signal, and an external interface connector connected to an external interface plug, and includes a detecting and notifying section for detecting an open/closed state of the foldable structure and for notifying the control unit of this state, another detecting and notifying section for detecting that the external interface connector is connected to the external interface plug and for notifying the control unit whether the external interface connector is connected, and a setting section, arranged in the control unit, for setting a response holding state when an incoming call is received in a state wherein said external interface plug is connected and the foldable structure is open.
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