Communication system and its control method, and computer readable memory

A communication system for performing facsimile communication through the Internet, comprising:

• decision means for deciding the connection mode of a call-in-party terminal;
• and
• control means for controlling the facsimile communication with the call-in party in accordance with a decision result by the decision means,
• wherein facsimile communication with the call-in-party terminal is executed in accordance with the session base when the connection mode of the call-in-party terminal uses leased-line connection as a result of the decision by the decision means.

The communication-system control method for performing facsimile communication through the Internet, comprising:

• a decision step, of deciding the connection mode of a call-in-party terminal;
• and
• a control step, of controlling the facsimile communication with the call-in-party in accordance with a decision result made in the decision step,
• wherein the control step includes executing facsimile communication with the call-in-party terminal in accordance with the message base when the connection mode of the call-in-party terminal uses dial-up connection as a result of the decision made in the decision step.

A communication-system control method for performing facsimile communication through the Internet, comprising:

• a decision step, of deciding the connection mode of a call-in-party terminal;
• and
• a control step, of controlling the facsimile communication with the call-in party in accordance with a decision result made in the decision step,
• wherein facsimile communication is executed with the call-in-party terminal in accordance with the session base when the connection mode of the call-in-party terminal uses leased-line connection as a result of the decision by the decision step.

A communication system capable of performing facsimile communication through the Internet, comprising:

• management means for managing at least a communication counterpart, information showing whether the communication to the communication counterpart uses facsimile communication using only a PSTN or facsimile communication through the Internet, and communication information showing any one of the session base, message base, and FAX service provider used by the facsimile communication through the Internet as its communication method;
• and
• control means for controlling the communication to the communication counterpart by referring to the communication information managed by the management means,
• wherein the management means further manages a unique address corresponding to the communication counterpart when the communication to the communication counterpart uses facsimile communication through the Internet using a FAX service provider.

A communication-system control method capable of performing facsimile communication through the Internet, comprising:

• a management step, of managing a communication counterpart, information showing whether the communication to the communication counterpart is facsimile communication using only a PST or facsimile communication through the Internet, and information showing whether the communication method for the facsimile communication through the Internet if used uses the session base, message base, or FAX service provider through at least a storage medium;
• and
• a control step, of controlling the communication to the communication counterpart by referring to the communication information managed by the storage medium in the management step,
• wherein the management control step further includes managing a unique address corresponding to a communication counterpart by storing it in the storage medium when the communication to the communication counterpart uses facsimile communication through the Internet using a FAX service provider.

A computer-readable memory, storing codes for causing performance of a communication method capable of performing facsimile communication through the Internet, comprising:

• deciding the connection mode of a call-in-party terminal;
• and
• controlling the facsimile communication with the call-in party in accordance with a decision result from the decision step,
• wherein the controlling step includes executing facsimile communication with the call-in-party terminal in accordance with the message base when the connection mode of the call-in-party terminal uses dial-up connection as a result of the decision made in the decision step.

A computer-readable memory, storing codes for causing performance of a communication method capable of performing facsimile communication through the Internet, comprising:

• deciding the connection mode of a call-in-party terminal;
• and
• controlling the facsimile communication with the call-in party in accordance with a decision result made in the decision step,
• wherein facsimile communication with the call-in-party terminal is executed in accordance with the session base when the connection mode of the call-in-party terminal uses leased-line connection as a result of the decision made in the decision step.

A computer-readable memory, storing codes for causing performance of a communication method capable of performing facsimile communication through the Internet, comprising:

• managing at least a communication counterpart information showing whether the communication to the communication counterpart uses facsimile communication using only a PSTN or facsimile communication through the Internet, and communication information showing any one of the session base, message base, and FAX service provider used by the facsimile communication through the Internet as its communication method;
• and
• controlling the communication to the communication counterpart by referring to the communication information managed in the management step,
• wherein the management step further includes managing a unique address corresponding to the communication counterpart when the communication to the communication counterpart uses facsimile communication through the Internet using a FAX service provider.