JPS6474893A - Key telephone system - Google Patents
Key telephone systemInfo
- Publication number
- JPS6474893A JPS6474893A JP23115187A JP23115187A JPS6474893A JP S6474893 A JPS6474893 A JP S6474893A JP 23115187 A JP23115187 A JP 23115187A JP 23115187 A JP23115187 A JP 23115187A JP S6474893 A JPS6474893 A JP S6474893A
- Authority
- JP
- Japan
- Prior art keywords
- line
- ncc
- circuit
- charge
- memory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To give freedom from care concerning a charge to a calling person by displaying the using of a secondary NTT (NCC) line with using a character or another identifying means to a display when a selected line is the NCC line in a key telephone system having function to automatically select the line of a minimum charge. CONSTITUTION:An LCR memory is provided in a control circuit 3 to constitute a main device A and necessary data are registered to this memory in advance. when data are sent from a data transmitting and receiving circuit 10, which constitutes a telephone set B, to a transmitting and receiving circuit 4 of the main device A, the line of the minimum call charge is selected by the LCR memory. After that, when the calling person operates a dial, it is informed a control circuit 11 of the telephone set B that the NCC line is selected and the circuit 13 is driven by the circuit 11. Then, the character of NCC is displayed. At such a time, when the NTT line is the minimum charge, a telephone number is sent to a trunk line 1 as it is and only a dial number is displayed without displaying an identifying signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23115187A JPS6474893A (en) | 1987-09-17 | 1987-09-17 | Key telephone system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23115187A JPS6474893A (en) | 1987-09-17 | 1987-09-17 | Key telephone system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6474893A true JPS6474893A (en) | 1989-03-20 |
Family
ID=16919093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23115187A Pending JPS6474893A (en) | 1987-09-17 | 1987-09-17 | Key telephone system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6474893A (en) |
-
1987
- 1987-09-17 JP JP23115187A patent/JPS6474893A/en active Pending
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