| 摘要 |
PROBLEM TO BE SOLVED: To call simultaneously a plurality of receiving terminals for each dial-in number. SOLUTION: A storage device 131 of a telephone exchange stores a plurality of receiving terminal numbers for each dial-in number and in the case of the arrival of a dial-in call, a plurality of receiving terminals are extracted by making the dial-in number received from an analog network 2 or an ISD network 3 correspond to dial-in numbers stored in the storage device 131 and a plurality of the receiving terminal are called at the same time. |
