Data communicating apparatus which selects analog or digital communication in accordance with the destination number

A data communicating apparatus comprising:

• first communicating means for performing a communication of data through a first communication network that is a digital communication network;
• second communicating means for performing a communication of data through a second communication network that is an analog communication network;
• input means for inputting a destination number;
• and
• control means for discriminating the destination number,
• wherein at least one first network number is associated with the first communication network and at least one second network number is associated with the second communication network,
• wherein said control means selects said first communicating means when the destination number corresponds to the first network number,
• wherein said control means selects said second communicating means when the destination number corresponds to the second network number,
• wherein said control means, when calling a destination identified by the destination number through said first communicating means, discriminates a response signal from the first communication network, and
• wherein said control means switches said first communicating means to said second communicating means to call the destination when the response signal is discriminated to indicate that there is no subscriber corresponding to the destination number in the first communication network.

A facsimile apparatus comprising:

• telephone network communicating means for performing a facsimile communication with a telephone network;
• digital network communicating means for performing a facsimile communication through a digital network;
• input means for inputting a destination number;
• and
• control means adapted to, when calling the destination number through said digital network, discriminate a response signal from said digital network and adapted to switch said digital network communication means to said telephone network communication means in accordance with the discrimination result, wherein
• said control means switches to said telephone network communication means when the response signal indicates that the destination number is not equivalent to any subscriber in the digital network;
• and
• selecting means for selecting either said digital network communicating means or said telephone network communicating means in response to said control means.

A data communicating apparatus connectable to a digital communication line of a digital network and an analog communication line of an analog network, said apparatus comprising:

• a digital communication unit adapted for performing a calling access to the digital communication line and for performing a data communication through the digital network;
• an analog communication unit adapted for performing a calling access to the analog communication line and for performing a data communication through the analog network;
• a console unit including a key for inputting a destination number;
• a control circuit for discriminating whether the destination number input by said console unit comprises a predetermined number;
• and
• a selecting circuit for selecting either said digital communication unit or said analog communication unit in response to an output from said control circuit, wherein said digital communication unit and said analog communication unit perform the data communication in different communication modes, respectively.

A data communication apparatus connectable to a digital communication line of a digital network and an analog communication line of an analog network, comprising:

• a digital communication unit adapted for performing a calling access to a digital communication line and for performing a data communication through the digital network;
• an analog communication unit adapted for performing a calling access to the analog communication line and for performing a data communication through the analog network;
• a console unit including a key for inputting a destination number;
• a control circuit for discriminating whether the destination number input by said console unit comprises a predetermined number;
• and
• a selecting circuit for selecting either said digital communication unit or said analog communication unit in response to said control circuit,
• wherein said control circuit selects said analog communication unit when a first digital of the destination number is discriminated as zero.

A data communication apparatus connectable to a digital network and an analog network, comprising:

• a digital communication unit adapted for performing a calling access to the digital network and for performing a data communication through the digital network;
• an analog communication unit adapted for performing a calling access to the analog network and for performing a data communication through the analog network;
• a console unit including a key for inputting a destination number;
• a control circuit adapted to when calling the destination number by said digital communication unit, switch said digital communication unit to said analog communication unit in response to a signal indicating that the destination number is not equivalent to any subscriber on the digital network;
• and
• a selecting circuit for selecting either said digital communication unit or said analog communication unit in response to said control circuit.