GB1051059A - - Google Patents
Info
- Publication number
- GB1051059A GB1051059A GB1051059DA GB1051059A GB 1051059 A GB1051059 A GB 1051059A GB 1051059D A GB1051059D A GB 1051059DA GB 1051059 A GB1051059 A GB 1051059A
- Authority
- GB
- United Kingdom
- Prior art keywords
- toll calls
- nov
- permitted
- ordinary
- combinations
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Exchange Systems With Centralized Control (AREA)
- Telephonic Communication Services (AREA)
Abstract
1,051,059. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. Nov. 27, 1964 [Nov. 29, 1963], No. 48249/64. Heading H4K. In an arrangement in which digits are sent from a sub-station by transistor oscillators under the control of a keyset as a combination of two frequencies, one from each of two groups of four so that 16 combinations are available in all, three different combinations are assigned to the digit 0 by means of preset connections according to the class of the subscriber, whether he is denied all toll calls, permitted only ordinary toll calls or permitted both ordinary and long-distance toll calls, corresponding indications being given at the exchange. Reference has been directed by the Comptroller to Specification 956,356.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST21381A DE1193111B (en) | 1963-11-29 | 1963-11-29 | Method for the identification of different traffic authorization of touch-dial subscriber stations in telephone systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1051059A true GB1051059A (en) |
Family
ID=7458977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1051059D Active GB1051059A (en) | 1963-11-29 |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1193111B (en) |
GB (1) | GB1051059A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1295670B (en) * | 1967-03-22 | 1969-05-22 | Standard Elektrik Lorenz Ag | Circuit arrangement for marking different authorizations of subscriber stations |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB956356A (en) * | 1960-07-21 | 1964-04-22 | Standard Telephones Cables Ltd | Improvements in or relating to signalling methods between subscriber's sets and exchage |
-
0
- GB GB1051059D patent/GB1051059A/en active Active
-
1963
- 1963-11-29 DE DEST21381A patent/DE1193111B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1193111B (en) | 1965-05-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1053349A (en) | ||
GB1051059A (en) | ||
GB950579A (en) | Switching equipment such as used in telecommunication exchanges | |
GB1059535A (en) | Intercommunication system with voice-frequency key dialling | |
GB1029204A (en) | Improvements in or relating to telephone switching systems | |
GB1480221A (en) | Telephone intercommunication systems | |
AU271155B2 (en) | Multistage crosspoint arrangement for telecommunication, particularly telephone exchange systems | |
US3341661A (en) | Equipment for operator served calls at an intermediate switching center | |
CA671639A (en) | Telephone system including coin control circuits | |
AU413966B2 (en) | Selector key aggregate for telephone subscriber devices | |
AU402630B2 (en) | Communication switching system | |
CA663817A (en) | Teleprinter telecommunication systems | |
AU2785567A (en) | Selector key aggregate for telephone subscriber devices | |
AU270201B2 (en) | Electronic telephone switching system | |
CA657805A (en) | Party line subscriber identifier | |
GB794815A (en) | Improvements in or relating to automatic telecommunication exchange | |
CA656068A (en) | Private branch exchange telephone system | |
CA664488A (en) | Private branch exchange telephone system | |
CA664487A (en) | Private branch exchange telephone system | |
AU5055864A (en) | Communication switching system | |
CA664673A (en) | Pcm time division telephone switching system | |
CA663137A (en) | Waystation telephone system | |
AU284148B2 (en) | Telephone transfer system | |
CA670697A (en) | Mobile dialing system | |
CA655409A (en) | Reverting call telephone system |