GB486802A - Circuit arrangement for automatic telephone systems for metering connections of different grades according to time and zone - Google Patents
Circuit arrangement for automatic telephone systems for metering connections of different grades according to time and zoneInfo
- Publication number
- GB486802A GB486802A GB4304/37A GB430437A GB486802A GB 486802 A GB486802 A GB 486802A GB 4304/37 A GB4304/37 A GB 4304/37A GB 430437 A GB430437 A GB 430437A GB 486802 A GB486802 A GB 486802A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- switch
- zone
- group
- junctions
- 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
- 238000004804 winding Methods 0.000 abstract 2
- 230000001788 irregular Effects 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
- H04M15/10—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)
- Meter Arrangements (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE486802X | 1936-02-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB486802A true GB486802A (en) | 1938-06-10 |
Family
ID=6543504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4304/37A Expired GB486802A (en) | 1936-02-13 | 1937-02-12 | Circuit arrangement for automatic telephone systems for metering connections of different grades according to time and zone |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR817755A (enEXAMPLES) |
| GB (1) | GB486802A (enEXAMPLES) |
| NL (1) | NL47550C (enEXAMPLES) |
-
0
- NL NL47550D patent/NL47550C/xx active
-
1937
- 1937-02-11 FR FR817755D patent/FR817755A/fr not_active Expired
- 1937-02-12 GB GB4304/37A patent/GB486802A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL47550C (enEXAMPLES) | |
| FR817755A (fr) | 1937-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB368716A (en) | Improvements in or relating to telephone systems | |
| US1699759A (en) | Electrical metering system | |
| GB486802A (en) | Circuit arrangement for automatic telephone systems for metering connections of different grades according to time and zone | |
| US2013171A (en) | Measured service telephone system | |
| GB694915A (en) | Improvements in or relating to automatic exchange systems | |
| US2708691A (en) | Answer time delay register circuit | |
| US2043674A (en) | Calling device | |
| GB511189A (en) | Improvements in and relating to telephone installations | |
| US2697133A (en) | Automatic telephone system of the measured-service type | |
| US2289745A (en) | Metering equipment for telecommunication exchange systems | |
| US2843672A (en) | Automatic telephone system | |
| US2006472A (en) | Testing system | |
| US1726983A (en) | Automatic telephone system | |
| GB391861A (en) | Improvements in or relating to telephone systems | |
| US2458262A (en) | Relay selector circuit arranged to simultaneously test a selected group of trunks | |
| US3046349A (en) | Station identification apparatus | |
| US1857848A (en) | Communication system | |
| GB354858A (en) | Improvements in or relating to telephone systems | |
| GB776026A (en) | Traffic supervisory arrangements in telephone systems | |
| US2525417A (en) | Selector switch metering circuit | |
| US1556727A (en) | Traffic recorder for telephone systems | |
| GB490202A (en) | Circuit arrangement for the metering of different grades of connection in automatic telephone systems | |
| GB350912A (en) | Improvements in or relating to telephone systems | |
| GB380788A (en) | Apparatus for the remote control and supervision of adjustable members in a sub-station from a main station | |
| US1851185A (en) | Telephone system |