ISDN telephone operation method

摘要

The method involves writing free facilities into a storage unit (16,17) using a special key (20). Data for a distant end are written into the storage unit after the use of the special key using a keyboard. The writing is ended using the special key or another special key (21). An appropriate distant end is dialled using a normal dialing procedure. The contents of the storage unit is transmitted to the distant end according to the used ISDN facility. The data received by the used ISDN facility are stored in a memory (9) and transmitted to a display storage area (11). The data are then displayed (2).