JPS647558B2 - - Google Patents
Info
- Publication number
- JPS647558B2 JPS647558B2 JP11971383A JP11971383A JPS647558B2 JP S647558 B2 JPS647558 B2 JP S647558B2 JP 11971383 A JP11971383 A JP 11971383A JP 11971383 A JP11971383 A JP 11971383A JP S647558 B2 JPS647558 B2 JP S647558B2
- Authority
- JP
- Japan
- Prior art keywords
- incoming call
- incoming
- signal
- time
- ring 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/82—Line monitoring circuits for call progress or status discrimination
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11971383A JPS6010992A (ja) | 1983-06-30 | 1983-06-30 | 電話装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11971383A JPS6010992A (ja) | 1983-06-30 | 1983-06-30 | 電話装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6010992A JPS6010992A (ja) | 1985-01-21 |
JPS647558B2 true JPS647558B2 (US07816562-20101019-C00012.png) | 1989-02-09 |
Family
ID=14768262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11971383A Granted JPS6010992A (ja) | 1983-06-30 | 1983-06-30 | 電話装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6010992A (US07816562-20101019-C00012.png) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61287625A (ja) * | 1985-05-29 | 1986-12-18 | Kaneko Agricult Mach Co Ltd | 穀物乾燥機における穀物張込装置 |
JPH01223862A (ja) * | 1988-03-02 | 1989-09-06 | Toshiba Corp | 電話機 |
JP2651034B2 (ja) * | 1990-03-20 | 1997-09-10 | キヤノン株式会社 | 通信装置 |
JP2641590B2 (ja) * | 1990-03-20 | 1997-08-13 | キヤノン株式会社 | 外線表示器の製御方法 |
US5420918A (en) * | 1990-03-20 | 1995-05-30 | Canon Kabushiki Kaisha | Telephone apparatus for invalidating incoming call signals during dialing |
-
1983
- 1983-06-30 JP JP11971383A patent/JPS6010992A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6010992A (ja) | 1985-01-21 |
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