| 摘要 |
PURPOSE:To avoid such a case where a subscriber forgets to call at an appointed time point or kept waiting uselessly, by using a time memory means which can store both a time point designated by a calling subscriber and the number of a calling means of a called subscriber by means of the input given from a calling means of the calling subscriber. CONSTITUTION:For an extension A, a special access code is dialed by a hooking operation and then a designated incoming time point is dialed. A central processor 4 receives an access code and the designated incoming time point from a register circuit 3 and starts a memory 5 to write an extension B and the designated time point to a time memory circuit 6 set opposite to the extension A. Then the extension A hears a service set tone through the circuit 3 at a set time point and a handset is set down. The processor 4 supplies a call signal to an extension circuit 1 from a signal device 8 at the designated time point and starts the memory 5 after receiving the answer information of the extension A. Then an answer is received from the extension B, this answer information is transmitted to the processor 4. The memory 5 is started for restoration of the designated time point corresponding to the extension A and stored in the circuit 6 as well as the number of the extension B. |
