JPS6454893A - Key telephone system - Google Patents
Key telephone systemInfo
- Publication number
- JPS6454893A JPS6454893A JP21183987A JP21183987A JPS6454893A JP S6454893 A JPS6454893 A JP S6454893A JP 21183987 A JP21183987 A JP 21183987A JP 21183987 A JP21183987 A JP 21183987A JP S6454893 A JPS6454893 A JP S6454893A
- Authority
- JP
- Japan
- Prior art keywords
- additional device
- key telephone
- tone
- dialed
- prescribed number
- 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
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Abstract
PURPOSE:To make a key telephone set having dialed a prescribed number access an additional device by making the additional device output a prescribed MF tone by driving an MF tone circuit, and controlling the additional device so as to come into a state that the additional device can be used from the key telephone set. CONSTITUTION:When the prescribed number is dialed from the offhooked key telephone sets 21-2m in an extension selection state, a control part 7 drives the MF tone circuit 5 and sends the prescribed MF tone 9 to the additional device 6 corresponding to the dialed prescribed number, and controls the additional device 6 and makes the key telephone sets 21-2m having dialed the prescribed number able to access the additional device 6. Thus, the key telephone sets 21-2m, even not in a line wire selection state, is made able to use the additional device 6, connected to a main device 1 and controlled by the MF tone 9, and the function of the key telephone sets 21-2m is enhanced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21183987A JPS6454893A (en) | 1987-08-25 | 1987-08-25 | Key telephone system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21183987A JPS6454893A (en) | 1987-08-25 | 1987-08-25 | Key telephone system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6454893A true JPS6454893A (en) | 1989-03-02 |
Family
ID=16612439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21183987A Pending JPS6454893A (en) | 1987-08-25 | 1987-08-25 | Key telephone system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6454893A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59160364A (en) * | 1982-12-30 | 1984-09-11 | ウオング・ラボラトリ−ズ・インコ−ポレ−テツド | Method and device for automatically responding to telephone calling |
JPS61113393A (en) * | 1984-11-08 | 1986-05-31 | Tamura Electric Works Ltd | Automatic answering telephone set control system for button telephone equipment |
JPS61114690A (en) * | 1984-11-08 | 1986-06-02 | Matsushita Electric Ind Co Ltd | Button telephone device |
JPS6316746A (en) * | 1986-07-09 | 1988-01-23 | Iwatsu Electric Co Ltd | Telephone exchange |
-
1987
- 1987-08-25 JP JP21183987A patent/JPS6454893A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59160364A (en) * | 1982-12-30 | 1984-09-11 | ウオング・ラボラトリ−ズ・インコ−ポレ−テツド | Method and device for automatically responding to telephone calling |
JPS61113393A (en) * | 1984-11-08 | 1986-05-31 | Tamura Electric Works Ltd | Automatic answering telephone set control system for button telephone equipment |
JPS61114690A (en) * | 1984-11-08 | 1986-06-02 | Matsushita Electric Ind Co Ltd | Button telephone device |
JPS6316746A (en) * | 1986-07-09 | 1988-01-23 | Iwatsu Electric Co Ltd | Telephone exchange |
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