GB1347945A - Telecommunications exchange systems - Google Patents
Telecommunications exchange systemsInfo
- Publication number
- GB1347945A GB1347945A GB749672A GB749672A GB1347945A GB 1347945 A GB1347945 A GB 1347945A GB 749672 A GB749672 A GB 749672A GB 749672 A GB749672 A GB 749672A GB 1347945 A GB1347945 A GB 1347945A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- metering
- call
- wire
- group selector
- 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
- 239000003550 marker Substances 0.000 abstract 2
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 abstract 1
Classifications
-
- 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
- H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Meter Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712109054 DE2109054C3 (de) | 1971-02-25 | 1971-02-25 | Schaltungsanordnung für Fernmeldevermittlungsan lagen, insbesondere Fernsprechvermittlungsanlagen, mit Gebührenzahlung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1347945A true GB1347945A (en) | 1974-02-27 |
Family
ID=5799842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB749672A Expired GB1347945A (en) | 1971-02-25 | 1972-02-17 | Telecommunications exchange systems |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT322638B (cg-RX-API-DMAC7.html) |
| BE (1) | BE779867A (cg-RX-API-DMAC7.html) |
| CH (1) | CH539990A (cg-RX-API-DMAC7.html) |
| DE (1) | DE2109054C3 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2127535A5 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1347945A (cg-RX-API-DMAC7.html) |
| IT (1) | IT947779B (cg-RX-API-DMAC7.html) |
| LU (1) | LU64828A1 (cg-RX-API-DMAC7.html) |
| NL (1) | NL7202327A (cg-RX-API-DMAC7.html) |
-
1971
- 1971-02-25 DE DE19712109054 patent/DE2109054C3/de not_active Expired
- 1971-12-29 FR FR7147242A patent/FR2127535A5/fr not_active Expired
-
1972
- 1972-01-28 CH CH130072A patent/CH539990A/de not_active IP Right Cessation
- 1972-02-01 AT AT78972A patent/AT322638B/de not_active IP Right Cessation
- 1972-02-17 GB GB749672A patent/GB1347945A/en not_active Expired
- 1972-02-22 IT IT2085672A patent/IT947779B/it active
- 1972-02-22 NL NL7202327A patent/NL7202327A/xx not_active Application Discontinuation
- 1972-02-23 LU LU64828D patent/LU64828A1/xx unknown
- 1972-02-25 BE BE779867A patent/BE779867A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE779867A (fr) | 1972-08-25 |
| FR2127535A5 (cg-RX-API-DMAC7.html) | 1972-10-13 |
| DE2109054C3 (de) | 1974-04-04 |
| DE2109054A1 (de) | 1972-09-07 |
| LU64828A1 (cg-RX-API-DMAC7.html) | 1972-07-05 |
| CH539990A (de) | 1973-07-31 |
| DE2109054B2 (de) | 1973-09-20 |
| AT322638B (de) | 1975-05-26 |
| NL7202327A (cg-RX-API-DMAC7.html) | 1972-08-29 |
| IT947779B (it) | 1973-05-30 |
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| JPS6234452A (ja) | 複数通信事業体間課金方式 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |