IN167984B - - Google Patents
Info
- Publication number
- IN167984B IN167984B IN599/CAL/87A IN599CA1987A IN167984B IN 167984 B IN167984 B IN 167984B IN 599CA1987 A IN599CA1987 A IN 599CA1987A IN 167984 B IN167984 B IN 167984B
- Authority
- IN
- India
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
- H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
- H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3632200 | 1986-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN167984B true IN167984B (pl) | 1991-01-19 |
Family
ID=6310099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN599/CAL/87A IN167984B (pl) | 1986-09-23 | 1987-08-03 |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0264644A3 (pl) |
| AU (1) | AU600523B2 (pl) |
| FI (1) | FI874140A (pl) |
| IN (1) | IN167984B (pl) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN164858B (pl) * | 1986-09-11 | 1989-06-17 | Siemens Ag | |
| ES2046112B1 (es) * | 1992-04-24 | 1996-11-16 | Revenga Ingenieros S A | Equipo telefonico para lineas directas punto a punto. |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7907134A (nl) * | 1979-09-25 | 1981-03-27 | Ericsson Telefon Mij | Telefooninstallatie van de als sterpuntinstallatie aangeduide soort. |
| AT377606B (de) * | 1981-08-07 | 1985-04-10 | Dynamit Nobel Ag | Sprengmomentzuender |
| US4490583A (en) * | 1983-02-14 | 1984-12-25 | Circom, Inc. | Plural line telephone controller |
| JPS6152053A (ja) * | 1984-08-20 | 1986-03-14 | Nec Corp | ダイヤルインパルス送出回路 |
| IN164858B (pl) * | 1986-09-11 | 1989-06-17 | Siemens Ag |
-
1987
- 1987-08-03 IN IN599/CAL/87A patent/IN167984B/en unknown
- 1987-09-21 EP EP87113787A patent/EP0264644A3/de not_active Withdrawn
- 1987-09-22 AU AU78835/87A patent/AU600523B2/en not_active Ceased
- 1987-09-22 FI FI874140A patent/FI874140A/fi not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI874140A0 (fi) | 1987-09-22 |
| AU7883587A (en) | 1988-03-31 |
| EP0264644A2 (de) | 1988-04-27 |
| AU600523B2 (en) | 1990-08-16 |
| EP0264644A3 (de) | 1989-06-14 |
| FI874140A (fi) | 1988-03-24 |