| 摘要 |
PURPOSE:To minimize the quantity of data to be set, by providing previously storing data of standard keys and then changing only desired areas. CONSTITUTION:Multifunction telephones STA A and STA B are controlled by a microprocessor MPC which performs connection control of a telephone switchboard SW. The processor MPC is connected to an ROM, C-RAM provided with battery backup and an N-RAM having no battery backup, respectively. Then a process is executed by a program of the ROM. The switchboard SW is connected to a call repeating trunk TRK. Both clear key K06 and display key K13 are fixed keys among the keys K00-K15 of the telephone, and a change of functions is impossible for these two keys. Therefore these keys are combined with other keys and used, and a state display and deletion are carried out for each key. Thus the quantity of data to be set can be minimized by setting the standard data only for the key to which a change is desired. |
