GB1552813A - Telephone exchanges - Google Patents
Telephone exchangesInfo
- Publication number
- GB1552813A GB1552813A GB485478A GB485478A GB1552813A GB 1552813 A GB1552813 A GB 1552813A GB 485478 A GB485478 A GB 485478A GB 485478 A GB485478 A GB 485478A GB 1552813 A GB1552813 A GB 1552813A
- Authority
- GB
- United Kingdom
- Prior art keywords
- telephone exchanges
- exchanges
- telephone
- 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
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
- H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
- H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
- H04Q3/54508—Configuration, initialisation
- H04Q3/54533—Configuration data, translation, passwords, databases
Landscapes
- Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB485478A GB1552813A (en) | 1976-09-28 | 1976-09-28 | Telephone exchanges |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB485478A GB1552813A (en) | 1976-09-28 | 1976-09-28 | Telephone exchanges |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1552813A true GB1552813A (en) | 1979-09-19 |
Family
ID=9785060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB485478A Expired GB1552813A (en) | 1976-09-28 | 1976-09-28 | Telephone exchanges |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1552813A (en) |
-
1976
- 1976-09-28 GB GB485478A patent/GB1552813A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |