| 摘要 |
PROBLEM TO BE SOLVED: To provide an ISDN terminal by which a caller side can designate a transfer destination using a dial number, and a called side can realize a transfer function at a low channel contract cost. SOLUTION: The ISDN terminal is characterized, in that it is provided with a port number acquisition means that analyzes facility information attached to a cal setup message received at the reception of an incoming call and acquires a port number reported, on the basis of a ringer classification function provided by an ISDN and with a received document transfer means, that transfers a received document with the received communication to a transfer destination unit identified by the port number acquired by the port number acquiring means.
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