AT251049B - Circuit arrangement for a telephone system with key dialing and pulse dialing - Google Patents
Circuit arrangement for a telephone system with key dialing and pulse dialingInfo
- Publication number
- AT251049B AT251049B AT973165A AT973165A AT251049B AT 251049 B AT251049 B AT 251049B AT 973165 A AT973165 A AT 973165A AT 973165 A AT973165 A AT 973165A AT 251049 B AT251049 B AT 251049B
- Authority
- AT
- Austria
- Prior art keywords
- dialing
- circuit arrangement
- telephone system
- key
- pulse
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT973165A AT251049B (en) | 1965-10-27 | 1965-10-27 | Circuit arrangement for a telephone system with key dialing and pulse dialing |
DE19661512037 DE1512037A1 (en) | 1965-10-27 | 1966-08-05 | Circuit arrangement for a telephone system with key dialing and pulse dialing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT973165A AT251049B (en) | 1965-10-27 | 1965-10-27 | Circuit arrangement for a telephone system with key dialing and pulse dialing |
Publications (1)
Publication Number | Publication Date |
---|---|
AT251049B true AT251049B (en) | 1966-12-12 |
Family
ID=3616762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT973165A AT251049B (en) | 1965-10-27 | 1965-10-27 | Circuit arrangement for a telephone system with key dialing and pulse dialing |
Country Status (2)
Country | Link |
---|---|
AT (1) | AT251049B (en) |
DE (1) | DE1512037A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE758187A (en) * | 1969-11-13 | 1971-04-29 | Cit Alcatel | SIGNAL TRANSMITTING DEVICE IN PARTICULAR FOR NUMBERING KEYPAD |
-
1965
- 1965-10-27 AT AT973165A patent/AT251049B/en active
-
1966
- 1966-08-05 DE DE19661512037 patent/DE1512037A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1512037A1 (en) | 1969-04-10 |
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