SWITCHING SYSTEM AND SWITCHING METHOD DURING COMMUNICATION

PROBLEM TO BE SOLVED: To switch communication to a fixed terminal whose telephone number is not reported. SOLUTION: This system is provided with interface parts 51 and 52 connected to fixed network exchanges 101 and 102 for forming lines to the fixed terminals 103 and 104, the interface part 50 connected to a mobile network exchange 105 for forming the line to a mobile terminal 107, a communication foldover part 2 for foldover-connecting the line, a switch part 10 for forming a speech path among them, a control means 1 for controlling the formation of the speech path and a storage means 3. The control means 1 stores the line information and the telephone number of the mobile terminal in a storage part 3 at the time of making the communication between the fixed terminal 103 and the mobile terminal 107 possible by forming the speech path (1), and when a specified telephone number and the telephone number of the mobile terminal are originated from the fixed terminal 104 during communication, recognizes communication changeover, forms the speech paths (3) and (5) based on the stored line information, makes the communication between the fixed terminals possible and then, releases the speech path (1).