GB873147A - Improvements in or relating to automatic telephone systems - Google Patents
Improvements in or relating to automatic telephone systemsInfo
- Publication number
- GB873147A GB873147A GB553057A GB553057A GB873147A GB 873147 A GB873147 A GB 873147A GB 553057 A GB553057 A GB 553057A GB 553057 A GB553057 A GB 553057A GB 873147 A GB873147 A GB 873147A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulse
- pulses
- metering
- meters
- relay
- 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)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
873,147. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Dec. 19, 1957 [Feb. 19, 1957], No. 5530/57. Class 40 (4). Subscribers of two different categories are charged different metering fees, metering pulses of one kind affecting the meters of both categories and metering pulses of another kind affecting the meters of only one category. A subscriber's meter MTR, Fig. 3, may be connected through a rectifier MR either to positive battery or to earth according to whether the subscriber is on a business tariff B or a residential tariff R. In the former case the meter responds to both +100 and + 50 volt pulses. In the latter case the meter responds only to the higher voltage pulses. Detailed description, Figs. 1, 2. The first dialled digit besides being repeated over junction JN also drives a fee discriminating uniselector FD. The uniselector FD starts at position 1 and advances two steps for each impulse. It is guarded against interference by subsequent digits. When the called party answers relay D operates to energize DD. The first subsequent " S " pulse on lead SP energizes DA. The next " Z " pulse operates DB. Metering pulse terminals MP1-MP6 during this " Z " pulse delivery 1-6 pulses over strappings to appropriate odd-numbered contacts of bank FD5 and even-numbered contacts of bank FD6. Since the wipers of FD stand at an oddnumbered contact only FD5 is effective to energize metering relay J an appropriate number of times. FD3 supplies a corresponding number of +100 volt pulses over contacts J1 to the P wire of the calling line. This is the basic metering fee and is effective on the meters of both residential and business subscribers. At the end of the " Z " pulse DA and DB release and uniselector FD advances one step to an even-numbered position. An " S " pulse reoperates DA and the next " Z " pulse reoperates DB. Wipers FD6 and FD4 are now effective, one to supply pulses from the appropriate terminal MP1-MP6 to relay J, and the other to supply a corresponding number of +50 volt pulses to the P wire. This is the supplementary fee and is effective only on the meters of business subscribers. At the end of this " Z " pulse DA restores but DB holds up whereby subsequent " S " pulses have no effect on the metering relay.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB553057A GB873147A (en) | 1957-02-19 | 1957-02-19 | Improvements in or relating to automatic telephone systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB553057A GB873147A (en) | 1957-02-19 | 1957-02-19 | Improvements in or relating to automatic telephone systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB873147A true GB873147A (en) | 1961-07-19 |
Family
ID=9797946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB553057A Expired GB873147A (en) | 1957-02-19 | 1957-02-19 | Improvements in or relating to automatic telephone systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB873147A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2366124A (en) * | 2000-03-13 | 2002-02-27 | Nec Corp | Special call-fee charging method |
-
1957
- 1957-02-19 GB GB553057A patent/GB873147A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2366124A (en) * | 2000-03-13 | 2002-02-27 | Nec Corp | Special call-fee charging method |
GB2366124B (en) * | 2000-03-13 | 2004-07-21 | Nec Corp | Special call-free charging method |
US6782084B2 (en) | 2000-03-13 | 2004-08-24 | Nec Corporation | Special call fee charging method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2782257A (en) | Automatic telephone system | |
DE3886397T2 (en) | METHOD AND ARRANGEMENT FOR TELECOMMUNICATIONS. | |
ES478615A1 (en) | Apparatus for analysing the traffic of public telephones and remote supervision installation for analysing the traffic of public telephones served by a plurality of telephone exchanges. | |
US2676209A (en) | Coin-controlled telephone system in which tariff rates for telephone calls are audibly transmitted automatically to a calling subscriber | |
GB873147A (en) | Improvements in or relating to automatic telephone systems | |
US1943130A (en) | Telephone system | |
US2316238A (en) | Telecommunication system | |
US3890468A (en) | Circuit arrangement for ground start coin operated telephones | |
ES455591A1 (en) | Tariff meter or signaller in telephone exchanges - has two supply circuits one supplying meter during pauses, and other during calls | |
US2958732A (en) | Telephone system having prepay-postpay paystation service | |
US3881062A (en) | Totalizer circuit for coin operated telephones | |
US3188396A (en) | Foreign exchange trunking | |
US2458262A (en) | Relay selector circuit arranged to simultaneously test a selected group of trunks | |
GB1130647A (en) | A telephone exchange with an arrangement for automatic fee announcement in direct distance dialling | |
US3510594A (en) | Arrangement for automatic assessment of fees in conference call circuits | |
JPS5489407A (en) | Centralized storage system for subscriber message rate information | |
US2277470A (en) | Automatic toll ticketing system | |
DE2737811B1 (en) | Circuit arrangement for establishing a connection in telephone systems free of charge for the calling subscriber | |
DE952279C (en) | Circuit arrangement for telephone private branch exchanges with detection of particularly chargeable connections | |
US2849536A (en) | Measured service control apparatus | |
US3019297A (en) | Party line identification apparatus | |
GB1295491A (en) | ||
JPS5620371A (en) | Automatic credit call system | |
GB351959A (en) | Improvements relating to automatic and semi-automatic telephone systems | |
JPS585550B2 (en) | Golden pine tree |