JPS5610765A - Automatic answer signal system of communication terminal equipment - Google Patents
Automatic answer signal system of communication terminal equipmentInfo
- Publication number
- JPS5610765A JPS5610765A JP8493379A JP8493379A JPS5610765A JP S5610765 A JPS5610765 A JP S5610765A JP 8493379 A JP8493379 A JP 8493379A JP 8493379 A JP8493379 A JP 8493379A JP S5610765 A JPS5610765 A JP S5610765A
- Authority
- JP
- Japan
- Prior art keywords
- terminal equipment
- calling side
- called
- ring
- back tone
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Abstract
PURPOSE:To enable the calling side to confirm the talking possible situation without adding any external unit, by securing an automatic delay of the answer from the called terminal equipment for the necessary time and then originating the ring-back tone to the calling side. CONSTITUTION:Receiving call signal 1 sent from the calling side to call out the terminal equipment at the called side, the exchange unit connects the calling side to the circuit of the terminal equipment at the called side and then sends incoming signal 2 and ring-back tone 3 to the terminal equipment at the called side and the calling side each and simultaneously. Then the terminal equipment at the called side receives automatically signal 2 in 2-3 times, and then sends back answer signal 4. Thus the connection of the circuit can be confirmed at the calling side by the ring-back tone, and also talking possible time band 5 can be known easily by the fact that the ring-back tone is cut off by the answer signal sent from the terminal equipment at the called side. As a result, the talking possible situation of the terminal equipment at the called side can be confirmed at the calling side without adding any external unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8493379A JPS5610765A (en) | 1979-07-06 | 1979-07-06 | Automatic answer signal system of communication terminal equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8493379A JPS5610765A (en) | 1979-07-06 | 1979-07-06 | Automatic answer signal system of communication terminal equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5610765A true JPS5610765A (en) | 1981-02-03 |
Family
ID=13844475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8493379A Pending JPS5610765A (en) | 1979-07-06 | 1979-07-06 | Automatic answer signal system of communication terminal equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5610765A (en) |
-
1979
- 1979-07-06 JP JP8493379A patent/JPS5610765A/en active Pending
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