SE377022B - - Google Patents
Info
- Publication number
- SE377022B SE377022B SE744571A SE744571A SE377022B SE 377022 B SE377022 B SE 377022B SE 744571 A SE744571 A SE 744571A SE 744571 A SE744571 A SE 744571A SE 377022 B SE377022 B SE 377022B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Manipulation Of Pulses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU147470 | 1970-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE377022B true SE377022B (en) | 1975-06-16 |
Family
ID=3691994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE744571A SE377022B (en) | 1970-06-10 | 1971-06-09 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB1359508A (en) |
| SE (1) | SE377022B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2334249A1 (en) * | 1975-12-03 | 1977-07-01 | Constr Telephoniques | Private telephone system subscriber identification system - introduces 20 KHz trapezoidal pulse train into network |
| CH592988A5 (en) * | 1976-01-26 | 1977-11-15 | Sodeco Compteurs De Geneve | |
| FR2341990A1 (en) * | 1976-02-23 | 1977-09-16 | Automatisme Tech Electro Contr | Telephone subscriber identification device - memorises numbers of called and calling subscriber in private exchange during conversation |
| CH608153A5 (en) * | 1977-09-14 | 1978-12-15 | Sodeco Compteurs De Geneve | |
| DE2816034C3 (en) * | 1978-04-13 | 1985-07-18 | Siemens AG, 1000 Berlin und 8000 München | Circuit arrangement for the system-independent recording of call data and charges |
| US4605958A (en) * | 1983-04-14 | 1986-08-12 | Control Data Corporation | Method and apparatus for detecting the channel to which an electronic receiver system is tuned |
-
1971
- 1971-06-09 SE SE744571A patent/SE377022B/xx unknown
- 1971-06-10 GB GB1998671A patent/GB1359508A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1359508A (en) | 1974-07-10 |