US1872842A - Call recording and charging system - Google Patents

Call recording and charging system Download PDF

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Publication number
US1872842A
US1872842A US521736A US52173631A US1872842A US 1872842 A US1872842 A US 1872842A US 521736 A US521736 A US 521736A US 52173631 A US52173631 A US 52173631A US 1872842 A US1872842 A US 1872842A
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Prior art keywords
connection
contact
time
subscriber
over
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Expired - Lifetime
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US521736A
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English (en)
Inventor
Storch Paul
Rossberg Ehrhard
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Siemens and Halske AG
Siemens AG
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Siemens AG
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1432—Metric aspects
    • H04L12/1439—Metric aspects time-based
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1485—Tariff-related aspects
    • 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
    • H04M15/38—Charging, billing or metering by apparatus other than mechanical step-by-step counter type

Definitions

  • the record can be taken in any shape or form suitable for the kind of transmitted subscribers identification marks or for the time statement.
  • a receiving apparatus which is suitable in its operation for the telegraph system so that also the sender used for the transmission of the subscribers identi-fication marks corresponds in its operation to the devices used for the ordinary work in the system.
  • a particularly advantageous use ofthe subscribers identification marks employed for the registration can be carried out in that the identification mark, allocated to the called subscriber, simultaneously with the registration in the exchange is also transmitted to the purpose of supervising the set-up connection as well'as for check back to the calling subscriber.
  • the time statement which is taken in order to determine the duration of the connection in the exchange'can then also be noted and transmitted to the calling subscriber .with the result that he receives a notification of some sort to the extent of his call.
  • a simple tape receiver or'the like can, for example, be used in place of expensive recorders.
  • a mechanical recording as dots or dashes also other kinds of records can be made. It is possible, for example, to conduct the re-v ceived impulse to an electromagnet which makes impressions corresponding to the nature of the magnetic influences received.
  • a reproducing device which regenerates the recorded impulses and leads them, for example, to a recording receiver which executes the transscription of the impulse groups into readable types.
  • the transcription can be effected at suitable periods, i. e. at the end of the month when the accounts are sent out to the various subscribers.
  • each individual subscriber must be supplied with a corresponding device which automatically effects the recording of the identification marks, associated with the subscriber, at the switchingthrough of a connection to a required sub-.
  • Fig. 1 shows the known circuit of a subscribers connection, set-up over an automatic exchange.
  • Subscriber T1 who is by way of example, reach the required subscriber T2 by transmitting corresponding impulses by means of his dial over preselector VWl, group selector GWl, and the final selector LWl, with whom he can get into communication on completion of the-connection for the purpose of conversation or transmission of telegrams.
  • a connection set-up in the reverse direction (2) from subscriber T2 to subscriber T1 is effected over other switches VW2, GW2, LW2 as suggested by dotted lines.
  • FIG. 2 An extension of this circuit diagram ac,- cording to the main features of the invention is shown schematically in Fig. 2.
  • Each subscriber T1 and T2 is now supplied with a sending device on a passing steel wire a toll line subscriber, can
  • the sending device S2 responds at the same time or before the completion of the connection, and now transmits an identification signal allocated to subscriber T2, i. e. his name or number in a suitable form backwards over switches LWl, GWl, and -VW1 to the re DCving device E1 in which the recording of the identification signal is effected.
  • the identification signal can be transmitted in a similar manner tothe calling subscriber T1 also who thereby receives a check on the set-up connection. After the end of the transmission of the identification signals the set-up connection is prepared for conversation or code signals.
  • a time notification can be transmitted from a time recorded Z to the receivv T ing device E1 consisting by way of example, of the exact time of the beginning and end of the conversation.
  • the time recorder can be associated with the receiving device E1 in a simple form and operated in such a manner that it is automatically brought into operation after the complete setting up of a connection or after the transmission of the identification characterized, but it is recommended that a common timing device is used for a plurality of subscribers in the manner shown.
  • the sending device S1 associated with the called subscriber T1 is brought into operation in a corresponding manner, and trans mits an identification signal allocated to subscriber T1 to the receiving device E2 or simultaneously also to the calling subscriber
  • the connection can be set-up in any manner over a single exchange or a plurality of exchanges.
  • a common receiving device for the recording of the subscribers identification marks is to be used for a plurality of subscribers an arrangement as shown schematically in Fig. 3, by way of example, can be used.
  • the sending device S2 is brought into operation after the completion of the connection as before, but the recording of-the identification characteristic is not made by a receiving device directly associated with subscriber T1, but a rc- E, provided in common for a plurality of subscribers, operates and connects itself at the setting upof a connection the. subscriber T2,
  • time records, totaling the extent of calls, can also be transmitted in this case by a. commontime recorder Z.
  • FIG. 4a in conjunction with Fig. 4b, which should be located below Fig. 4a shows-the circuit of a telegraph system inwhich the metering and registration of connections is effected by a telegraph machine EF, (Fig. 4a bottom) which is associated with alar e group of subscribers; its connection with t e calling subscribers line is established by a call finder AS which operates automatically when the subscriber uts througha call.
  • a telegraph machine EF Fig. 4a bottom
  • a call finder AS which operates automatically when the subscriber uts througha call.
  • the two sending devices KS and KS intended for the enquiry of the subscribers identification characteristic are located which are allocated to the subscribers TS and TS, respectively.
  • the impulse combinations which correspond to the subscribers identification characteristic and which are transmitted over v two of the'contact wipers of the sending devicesKS and KS sending device SS which is shown in the right-hand bottom part of thedrawings (Fig: 4a).
  • the sending device is connected to a time recording mechanism ZS (Fig. 4b) which transmits the time.
  • a test relay T is energized after the hunting of the preselector VW to a free group selector GW in known manner.
  • the relay T starts the call. finder AS of a disengaged registering device over its contact t2 1n the circuiti Earth, t2, asl, DAS, 12, a3, LU battery, earth.
  • the interrupter LU advances the driving magnet DAS step-by-step, upon which the-circu it, after leaving the first contact, no longer extends over contact t2 but reaches earth .direct from the contact bank of the rotary wiper asl.
  • test wiper cs4 during its hunting to find the contact of the calling subscriber, finds, a test path closed over contact 251 with the result that the test relayR of the call finder AS is energ'izedover: earth, battery, t1, resistance W1, as4, R, earth.
  • the test relay R engages the call finder and thereby the registering device EF by short circuiting its high resistance winding I by means of contact r1 is 'set in 'known manner, while at the same time, the Further advancing of the call finder is prevented by the opening of contact 12.
  • e r N The receiving magnet MB of the register- 5 device EFis now connected to the b-lead of the busy junction line,
  • the calling subscriber TS by transmission of selecting impulses by means of the dial contact as sets up a connection with the required subscriber TS over the a-lead in known manner, extending over :switches-VW, GW, and LW.
  • relays P and G are energized at the operationof the group selector GW to a free final selector LW, the contacts of which in known-manner influences the circuit not shown) for the seizure of the switch connecting up of the junction lines, reparation for the release, etc.
  • the test relays Q and T are energized if the subscriber is disengaged.
  • the relay H Winding Disconnected up over the test lead of the final selector and causes the identification characteristic mark transmitter KS allocated to the required subscriber to be operated over: earth, Q, 10, H,
  • the identification transmitter KS operates as soon as contact 72/2 is closed earth, battery DKS', 7084, 7:2, SK, earth.
  • Contact SK is closed by the cam the'correct time for the connecting up of the N K of the main send- Y er SS at regular time intervals in order to fix identification transmitter.
  • further series of cams NS are fitted which serve to guide the impulse contacts associated with the letters and numbers for the identification signs and time record which is achieved by a suitable phase position of the cam NK in relation to the impulse, cam NS in this simple manner that the'advance of the rotary wipers of the identification sender,'
  • the driving magnet DKS of the identification transmitter KS is intermittently energized in the above-described circuit and thereby advances the rotary wipers KS and KS4 step by-step.
  • the generation of the impulse .sequence, corresponding-to this letter i. e. b is efi'ected by contact kb of the-main sender SS which, by the cam NS associated therewith, is closed intermittently. according to the impulse sequence over: earth, battery, resistance W2. lab, a-lead, 1a, b'lead, gb, "bb', wiper of call "findersaa2, 'u 2, MR, earth.
  • the impulse sequence is noted by theregistering device EF controlled by the printing magnet-MR.
  • a notification takes place at the calling subscribers station TS by means of a printing'magnet EM of the receiver in case this is required as a check on the setting up of the connection.
  • impulse groups are transmitted in a corresponding manner by the connection being set up with corresponding impulse contacts of the main sender by the rotary wiper Ira-'3 of the identification transmitter KS.
  • the further advance takes place each time in the intervals between the individual impulse groups at the gging of contact SK by means of the cam
  • further impulse groups can be transmitted which effect the notification of the exact time or any other time information, and these latter impulse groups can be connected up to the impulse groups which are so combined that they state the name and place of the required subscriber in the recorder of the subscriber TS or in the registering device EF of the exchange.
  • the impulse groups are sent out from the time sender ZS (Fig. 4b) the contact wipers SZ, SE, MZ, ME of which complete the connection with the meter impulse contactslcl, k2, k3, and 704, etc., of the main sender SS, (Fig. 4a). d
  • the advance of the contact wipers SZ- ME (Fig. 4b) operate the rotary magnets DSZDME, associated with them, which are operated in the time periods corresponding to theirparti's by contacts ns-mme o a'time switch device ZU.
  • the arrangement is so made that the contact wiperME is associated with minute periods and is advanced in periods of one minute for which purpose it is connected in sequence with the impulse contacts (741,-etc.) of the main sender corresponding to digits 0 to 9.
  • the contact'wipers MZ associated with ten minuteperiods, e. g. every ten minutes, while thqntact wipers SE and SZ respond to the hour units or ten hour units and are advanced accordingly after longer time periods.
  • a fresh circuit for the receiving magnet -MR of the registering device EF is prepared by the changeover contact u2, which extends over the rotary wiper cs3 of the call finder AS to the rotary wiper 1082 of the identification sender KS allocated to the calling subscriber. transmitter operates, however, only after the cutting-off of the connection in order to transmit simultaneously also the time of the termination of the conversation.
  • junction line between the subscriber TS and TS is now engaged for the transmission of the telegram in both directions.
  • the test relay T After the ending of the telegram transmission the test relay T, at the release of the connection, is caused to release by the influence of contacts known per se, showniorthe sake of greater lucidity. Thereby a circuit for winding II of relay H is closed over contact 253 returning to normal. whereby the idenfication transmitter KS of the calling subscriber TS is in operation over: earth, battery, H, (II), t3, Iss2, as3, 102, MR, earth. Contact M is closed in order to keep the energizing circuit for relays R and U closed as an alternative for the now opening contact t1.
  • the identification transmitter KS starts dueto its rotary battery DKS, 1084, 71.2,
  • junction line to-main sender impulse con- 'is set to normal over earth, asl, DAS, 1'2, a3, LU, battery, earth.
  • a circuit for the rotary magnet DAS of the call finder AS is then closed by the return to normal of contacts 12- and n3, which then In the meantime the identification transmitter KS of the called subscriber TSl has also reached its original position, as at the release of the connection, the relay H1, (winding I) located in the test 'lead of the final selector LW has released.
  • the rotary magnet DKS now receives the advancing impulses generated by the interrupter RU, over contact h2 or h3, respectively,which bring the rotary wipers to their normal position.
  • v Fig. 5 shows an arrangementin which each subscriber is supplied with "a simple registera ing device which, byway of example, records the impulses,characteri'zing the set upconnec tion and its-duration on asteel wire drawn in front of a magnet. Impulses stored in this manner can later be put into clear text by a. recording machine transcribing the Onthe setti f I relays T, B, P, C, Q, and T are energized am. In adsigns which form the! basis for the statement of account. a I
  • the recording device consists of an electromagnet SM with windings I and II in front of the poles of which a steel wire X is moved over the drums Y1 and 2.
  • the winding I is influenced at the settion transmitter allocated to the called subscriber, while winding II can be brought into ting-up of a connection by the identificaoperation by a time recorder ZG, shown in the left bottom portion of the drawings, for the purpose of recording the time notifications indicating the duration of the call.
  • a notification of the identification signal allocated to the calling subscriber is not necessary in this case as each individual record ing device is associated with only one individual subscriber.
  • the identification transmitter KS allocated to the'called subscriber TS, is shown in the drawings, While the one-for the calling subscriber TS has been omitted.
  • the number of time recorders ZG required in a system can be comparatively small as it is sufficient if, at the establishment and release of a connection, a short connecting up of the recording magnet SM to a free time recorder is effected.
  • the selection of a disengaged time recorder is performed, by way of.
  • the subscriber TS wishes to transmit a telegram to the subscriber TS he sets-up the connection selectively by means of his dial in manner known per se over theswitches VW, GW, and LW.
  • Relay U (winding I) which is placed in series with the winding of the recording magnet SM is constructed in such a manner that it is not energized by the signal impulses. It operates with a slow-acting armature and the slow action period is so calculated that it cannot respond to the short signal imulses. Only when the contact wiper ks'l of the identification transmitter KS connects battery to the a-lead on one or a plurality of contacts located in frgnt of the last contact over resistance W4 for a longer period can relay U (winding I) be energized. It then closes a circuit by means of its contact a2 for the holding winding II which at the response of the test relay T, has been prepared by the closing of contact t1. The alternating. contact ul disconnects the winding 1 of the recording magnet SM and effects, at the same time, the immediate connecting up of the b-lead of the calling subscriber TS.
  • any other device can be used which operates in the same manner over the a-lead or b-lead from the identification transmitter- KS of the called subscriber. It is possible, for example, to use a polarized relay which remains in one position during the transmission of the identification impulses and which receives an impulse of opposing current direction at the last but one step of the contact wiper ks'l which it momentarily guides to another position.
  • the interrupter UAS now advances the switch over the contact bank of the rotary wiper as3 until the test wiper asl reaches the contact laminations of the calling subscriber and the test relay R is energizedv over: earth, battery, 104, H I (II) k2, asl, zgl, R, earth.
  • the test relay R responds and engages, at the SK of the main sender over the already closed contact 1 2 is it caused to operate over: earth, battery, a4, H (II) lt2,as1,1-2, SK, earth. It then throws over its contact hi! and remains energized over this in addition to the closed Contact t3 of the test relay T.
  • the rotary magnet D7 G of the time recorder ZG is also energized, with the consequence that the test relay R remainsenergized over the traversing contact bank of the rotary wiper zgll and resistance W1.
  • the rotary magnet DZG is connected up in the following circuit: earth, battery, DZG, 293, 1'5, SK, earth.
  • the time recorder ZG also advances step-by-step according to the operation of the identification transmitter by the contact SK controlled by the main sender SS, at which the rotary wiper 292 sets-up the connection with the contact wipers SZ-ME of the time switching device in succession.
  • the contact wipers SZ-ME are set to the contacts, indicating the time in the manner described for Fig. 46, by the rotary magnets DSZDME, controlled by a time switch ZU. These contacts are connected to the impulse contacts I01, 702, k3,ietc., of the main sender the contact wiper 292 of the time recorder,
  • a renewed connecting up .of the time re-- corder for the connection mentioned can only take place when the test relay T, of the calling subscriber TS is deenergized at the refree time recorder for the notification of the end of the call is then again started over contact as the rotary magnet DAS of the call finder AS is connected up over" contact wiper as?) in the already described manner.
  • Thetest circuit. for the call finder is then closed over contact t4 as relay H is energized and contact k2 thrown over.
  • the contact t3 is opened but the relay H (II) yet remains energized duririg the time notificationyas it receives theimpulse transmitted by the controlling contact SK over the test wiper asl.
  • Relay H is constructed in the form of a very sloW-actin relay. Thereby is achieved that relay U II) remains con.- nected upover contact hl during the time notification.
  • test relay R After the transmission of the impulse groups, correspondingto the'time of the end of the call, which ise'ifected in the already described manner, the test relay R is again deenergized when the, time recorder reaches the last but one contact, with the result that the time recorder sition.
  • relay H also is deenergized with a slow action and causes also the deenergization of relay U at the opening of contact k1.
  • a means for establishinga'connection between T a calling line and a called line means auto- ;matically operative responsive to the 'establishment,of said connection'in case the called line is idle for transmitting back over the established connection an identification signal assigned to the called subscribers line, and a recorder associated with said calling line operated responsive to for recording said called line identification signal.
  • means for establishing a connection between a calling line and a called line means operative in case the called lineis idle for transmitting back over the established connection an identification signal assigned to the called line and the time of day, a recorder-temporarily associated with'the calling line responsive to the establishment of said connection and operated responsive to said transmission for recording said called line identification signal and time of day, means for releasing said connection, and means responsive thereto for transmitting an identification signal assigned to the calling line and the time of day to said recorder for operating said recorder to record the calling line identification signal and the time of day whereby the lines, a recorder common to said calling lines,
  • a calling line and a called line means'for associating said common recorder with said calling line, means automatically operative responsive to the establishmentofsaid connection in case said called line is idle for transmitting back over said established connection can identification qsignal'assigned to the called subscribers' line, and means responsive tosaid transmission for operating.
  • calllng and called subscribers lines an 1111- pulse sender common to sald lines, a switch individual to each line having their bank contacts wire'dto said impulse sender in accordance with their assigned numbers, a recorder, means for establishing a connection between a calling line and a called line, means responsive to the establishment of said connection for connecting the switch individual to the called line tosaid sender, means controlled by said sender for operating said individual switch and for transmitting a signal indicative of the called line over the contacts connection between a calling and a called line, means controlled by said sender responsive to the establishment of said connection for operating the switch individual to the called line and for transmitting a signal indicative of the called line andthe time of day over the contacts and said connection, and means responsive to said transmission for operating said recorder. to record the called subscribers signal and the time of day.
  • means for establishing a connection between i a calling and a called line means controlled by said sender responsive to the establishment of said connection for operating the switch individual to the called line and for transmitting a signal indicative of the called line; over the contacts of said individual switch and said connection, means for releasing saidconnection, means controlled by said sender responsive to said disconnection for operating. the switch individual to the calling line and for transmitting a signal indicative of the calling line over the contacts of the switch individual to the calling line, and means responsive to both transmissions for operatingsaid recorder to record the called and calling subscribers signals.”
  • calling and called. subscribers lines means for establishing a connection between a calling line and a called line, means responsive to the establishment of said connection for transmitting an identification signal assigned to the called subscribers line, and a recorder associated with said calling line operated responsive to said transmission for retiording said called line identification signa "11.
  • calling and called subscribers lines means for establishing a connection between a -calling line and a called line, means responsive to the establishment'of said connection for transmitting an identification signal assigned to the called subscribers line, a recorder operated responsive to said transmission for recording said called line identification signal, means for transmitting an identification signal assigned to the calling line to said recorder, and means responsive thereto for operating said recorder to record the calling line identificationisi'gnal.
  • a call recording and-charging sysoperated responsive to said transmission for recording said calling line identification signal and time of day means for releasing said connection, and means responsive thereto for. transmitting an identification signal assigned to the calling line' and the time of day to said recorder for operating said recorder to recordthe calling line identification signal-and the time of day whereby the duration of the i call is likewise recorded.
  • v a 13 In a call recording and char 'ng system, calling and called subscribers lines, a
  • ' 10 means responsive to said transmission for operating both the individual andthe common recorders to record the called line identification signal.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Meter Arrangements (AREA)
  • Telephonic Communication Services (AREA)
US521736A 1930-06-08 1931-03-11 Call recording and charging system Expired - Lifetime US1872842A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467566A (en) * 1941-01-02 1949-04-19 Teletype Corp Message information storage device
US2498700A (en) * 1944-07-26 1950-02-28 Creed & Co Ltd Teleprinter exchange system
US2529166A (en) * 1943-03-31 1950-11-07 Lesigne Henri Louis Automatic switching system applicable to telegraphy
US2528624A (en) * 1947-03-19 1950-11-07 Pierce Company Automatic operation and selective calling system
US2584997A (en) * 1949-03-02 1952-02-12 Syrl K Ferguson Message timing device
US2668875A (en) * 1944-07-19 1954-02-09 Shepherd Judson O'd Data recording system
US2673234A (en) * 1946-03-16 1954-03-23 Comp Generale Electricite Automatic switching system applicable to telegraphy
US2998478A (en) * 1959-03-13 1961-08-29 Western Union Telegraph Co Patron's tie-line reperforation and topline signal generating system
US3067290A (en) * 1957-03-12 1962-12-04 Automatic Telephone & Elect Metering arrangements for automatic telephone systems

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467566A (en) * 1941-01-02 1949-04-19 Teletype Corp Message information storage device
US2529166A (en) * 1943-03-31 1950-11-07 Lesigne Henri Louis Automatic switching system applicable to telegraphy
US2668875A (en) * 1944-07-19 1954-02-09 Shepherd Judson O'd Data recording system
US2498700A (en) * 1944-07-26 1950-02-28 Creed & Co Ltd Teleprinter exchange system
US2673234A (en) * 1946-03-16 1954-03-23 Comp Generale Electricite Automatic switching system applicable to telegraphy
US2528624A (en) * 1947-03-19 1950-11-07 Pierce Company Automatic operation and selective calling system
US2584997A (en) * 1949-03-02 1952-02-12 Syrl K Ferguson Message timing device
US3067290A (en) * 1957-03-12 1962-12-04 Automatic Telephone & Elect Metering arrangements for automatic telephone systems
US2998478A (en) * 1959-03-13 1961-08-29 Western Union Telegraph Co Patron's tie-line reperforation and topline signal generating system

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Publication number Publication date
DE673407C (de) 1939-03-22
FR717997A (fr) 1932-01-16

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