GB490202A - Circuit arrangement for the metering of different grades of connection in automatic telephone systems - Google Patents
Circuit arrangement for the metering of different grades of connection in automatic telephone systemsInfo
- Publication number
- GB490202A GB490202A GB17324/38A GB1732438A GB490202A GB 490202 A GB490202 A GB 490202A GB 17324/38 A GB17324/38 A GB 17324/38A GB 1732438 A GB1732438 A GB 1732438A GB 490202 A GB490202 A GB 490202A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- zone
- switch
- exchanges
- digit
- 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
- 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
- H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Structure Of Telephone Exchanges (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE490137X | 1936-01-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB490202A true GB490202A (en) | 1938-08-04 |
Family
ID=6544067
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17324/38A Expired GB490202A (en) | 1936-01-03 | 1937-01-04 | Circuit arrangement for the metering of different grades of connection in automatic telephone systems |
GB204/37A Expired GB490137A (en) | 1936-01-03 | 1937-01-04 | Circuit arrangement for the metering of different grades of connection in automatic telephone systems |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB204/37A Expired GB490137A (en) | 1936-01-03 | 1937-01-04 | Circuit arrangement for the metering of different grades of connection in automatic telephone systems |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR815795A (en:Method) |
GB (2) | GB490202A (en:Method) |
NL (1) | NL48148C (en:Method) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE856636C (de) * | 1941-01-11 | 1952-11-24 | Normalzeit G M B H | Schaltungsanordnung fuer Fernsprechanlagen mit Zeit- und Zonenzaehlung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE882256C (de) * | 1938-04-06 | 1953-07-06 | Int Standard Electric Corp | Schaltungsanordnung fuer Fernmeldeanlagen, insbesondere Fernsprech-anlagen, zur Gebuehrenbestimmung durch die rufende und gerufene Vermittlungsstelle |
-
0
- NL NL48148D patent/NL48148C/xx active
-
1936
- 1936-12-31 FR FR815795D patent/FR815795A/fr not_active Expired
-
1937
- 1937-01-04 GB GB17324/38A patent/GB490202A/en not_active Expired
- 1937-01-04 GB GB204/37A patent/GB490137A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE856636C (de) * | 1941-01-11 | 1952-11-24 | Normalzeit G M B H | Schaltungsanordnung fuer Fernsprechanlagen mit Zeit- und Zonenzaehlung |
Also Published As
Publication number | Publication date |
---|---|
FR815795A (fr) | 1937-07-22 |
NL48148C (en:Method) | |
GB490137A (en) | 1938-08-04 |
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