| 摘要 |
PURPOSE:To prevent a wasteful main wire outgoing beforehand with a simple constitution by storing main wire outgoing rule information and charging code input information for respective telephone sets to a data memory of a central processing device which controls a call circuit and giving an obligation to inputting a charging code beforehand when a main wire outgoing from the telephone set, which will not receive a main wire outgoing regulation, is executed. CONSTITUTION:When telephone sets 1-1...1-l are off-hooked and a main wire outgoing code (For example, 0) is dialed, a central processing device 7 first, refers to main wire outgoing regulation information of the above-mentioned telephone set 1-1...1-l stored at a data memory and decides whether or not a main wire outgoing is possible. When it is registered that a main wire outgoing regulation is not performed, charging code input information is referred to and it is decided whether or not an input of a charging code is necessary. when it is registered that the input of the charging code is necessary, if a charging code stipulated beforehand is not inputted, the command 'Connect an extension and a main wire mutually.' will not be generated to a channel circuit 12. |
