DE959740C - Circuit arrangement for telephone systems, in particular telephone branch exchange systems for the recording of charges, particularly chargeable connections - Google Patents

Description

ISSUED MARCH 14, 1957

Stp885VIIIa / 2ia ^s

With the introduction of the self-dialing telecommunication service, telephone charges in To record private branch exchanges individually. For this purpose it is known at the switching station Provide display means that display calls to the operator that are subject to charges. The operator is thus able to summarize every single conversation. This kind of Fee collection requires additional work by the

ίο Verrnittkingsperson, which can only be carried out in small systems with a few official participants. One has therefore switched to recording the incurred call charges fully automatically and ¹ all d ^! for the necessary information, such as the identification of the calling station, counting pulses, etc., on a shared registration device, ζ. B. a printing unit to transfer. A known arrangement of this type establishes the subscriber at the beginning of a chargeable connection and transfers this established subscriber number to a memory device assigned to each exchange transmission, which stores this information until the end of the call, in order to then transmit it to the registration device. If such a call is transferred to another extension subscriber, the additional charges must be credited to this subscriber. In the known arrangement, when the inquiry connection is set up, the selected code number is transmitted to other memory switching means of the exchange transmission and! there until the end of the conversation

held. Such an arrangement therefore requires a large amount of memory circuitry for every transfer of office that is avoided according to the invention. This is achieved by that after setting up an inquiry connection for the purpose of transferring a connection that is subject to a special charge when initiating the transfer process the identification of the subscriber leading the call is initiated and the transfer process is delayed until identification has taken place. When initiating the transfer process by hanging up the handset after setting up an inquiry connection, switching means come into effect, the on the one hand initiate the identification, on the other hand the occupancy switching means of the transfer of office so hold until the identification is finished. With the identification of the subscriber line the participant to be identified

Transfer ao number to the tax rate of the charge printer.

According to a further embodiment of the invention, with occupancy of an outgoing connection device the identification device the anas calling subscriber line for elimination a certain type of authorization and forwards a new one after the end of the call Identification for billing purposes. Both at the end of the call and during the transfer process the same shocking remedies come into effect and! delay the release of an occupied one Transfer from office until the identification is finished.

Further details of the invention will now be based on the embodiment shown in the drawing described in more detail.

It is assumed that an extension occupies a free exchange transmission AUe in a known manner after the exchange code has been given. Relay C responds and with its contact c I switches through the speech wires to the feed bridge, so that feed relay A is energized. Contact aiii closes a circuit for the occupancy relay A1 of the trunk transmission. Contact αϊ III switches on the heavily delayed relay V. Contact α Ι switches on the relay ON in the memory Sp, which is assigned to the exchange transmission. Contact awl applies the AC voltage required to identify the extension. Above

+, anllJIJl.pr ^ SW, -

the drive magnet of the search selector SW is excited. Alternating with relay / will! the search dial turned until it hits the extension to be determined with its arm sw 1 and RelaisPi? responds, which interrupts the circuit for the drive magnet of the search dialer with its contact prl. The authorization of the extension is checked via the set voter arm sw 2 of the additional voter ¹ 'and, if this is authorized remotely, relay FB is energized. Relay F is energized via contact fb I. Relay F maintains a second winding and its own contact / II, which is closed before contact / III interrupts the circuit for winding I of relay F. The extension to the exchange is switched through via Kontakt / IV. The extension can now set up the remote connection in a known manner. With contact / V the circuit for the relay AN is interrupted. Relay An drops out from 7a and interrupts the control circuit with contact awl, so that the test relay PR drops out. When this test relay drops, the return of the additional selector SW is caused to return to its zero position in a known manner (not shown) or the subscriber identification device is released for other determination. The counting pulses arriving during a call are sent to the counting magnet Z via the 16 kHz switch and! stored there. After the call has ended, the feeder relay A drops out when the receiver is hung up. This is about

+, all, all, si, AN, -

Relay AN is again excited and thus the occupancy relay Ai of the office transmission is held via contact awIV. With the arrival of the first counting pulse and storage of the same in the counting magnet Z, its Nullkontafct zo had been actuated, so that now when the relay AN responds again

+, zo, anV, / VI, P (I), F (II), el, PA, -

when the charge printer is free, relay P and after short-circuiting its high-impedance winding II. Contact p II relay PA respond. Above

+, α »II, pal, il, prl, SW, -

the drive magnet of the search selector is excited and alternates with the relay / the search selector to Participant determination advanced. When the search dialer is set to the extension above

+ JU, paIV; TM, -

given the number of the extension on the setting magnet TM of the charge printer. The stored in the counting magnet Z. Counting pulses are also transmitted via a tap selector Ab to the setting magnet ZM of the printer. After setting the printer, printing is initiated and the printer is released again by the relay E, not shown, with contact el. When the search selector SW checked on the extension to be identified, the test relay PR responded and with contact pr II energized the relay S in the memory, which with its contacts I interrupts the circuit of the relay AN. With contact at IV the holding circuit of the occupancy relay A1 is interrupted and the trunk line is released.

Transfer of a long distance call

If an extension that is making a long-distance call wants to transfer it to another extension, so by pressing the earth button it goes back

question. The differential relay X responds. Contact xl closes a circuit for relay U, which is held by its own contact w I. With contact ii III the extension is switched to the inquiry line. The exchange connection is held in a known manner, not shown. The extension establishes a connection with the subscriber to whom it wants to transfer the call via the inquiry dialer RVWl. Of the

ίο The transfer process is initiated by hanging up the receiver on the part of the extension that wants to transfer the call, but delayed until the extension transferring the call has been identified. The feed relay A drops out.

Above

+, ail, all, si, AN, -

the relay AN in the memory is energized and the participant identification is initiated. The fixed position with simultaneous setting of the idfös printer takes place in the manner already described. Relay Ai is held until the participant detection has ended. After the relay A1 has dropped, that is to say after the previous charge of the first extension has been recorded, and the relay U drops, it speaks over

+, mIV, 01IV, wII, WH, -

Relay WH am. With contact whl , relay W is switched on and held via its own contact wl . The subscriber called in the inquiry is connected to the subscriber via the inquiry selector RVWl, contacts will, eil, μ III, / IV. The feed relay of the exchange line responds again and thus the occupancy relay A i. The relay V is a strongly drop-off delayed relay (10 seconds) and remains after opening its holding circuit through contact α ι III for the duration of the processes just described. If a further inquiry is to be initiated, the inquiry is set up using the inquiry selector RVW II. When transferring this call, the relay W is thrown off by the winding II after the participant has been determined for the purpose of billing and the relay A ι dropping. The subscriber is connected to the subscriber via the inquiry dial RVWIL contacts in / W, eil .

Claims (7)

PATENTED KITCHEN: i. Circuit arrangement for telephone systems, especially telephone extensions! systems, for the collection of fees, particularly subject to fees Connections in which the charges are automatically recorded, with a subscriber identification device for determination of the subscriber making a chargeable call », characterized by that after setting up an inquiry connection for the purpose of transferring a 'special fee ^ - Pfüchtigen connection Toei initiation of the folding process the identification of the party conducting the call is initiated and the transfer process is delayed until identification has taken place. 2. Circuit arrangement according to claim 1, characterized in that, when a call is transferred that is subject to a special fee, switching means (A, AN) come into effect by hanging up the handset after setting up an inquiry connection, which on the one hand initiate the identification and on the other hand the occupancy switching means (A 1) the transfer of office (AUe) until the identification is finished. 3. Circuit arrangement according to claim 1, characterized in that when an outgoing connection device (AUe) is occupied, the calling subscriber termination line is established for the elimination of a certain type of authorization (remote authorization) and, after the call has ended, a renewed identification is initiated to record charges. 4. Circuit arrangement according to claim 1 to 3, characterized in that both at the end of the call and · during the transfer process, the same switching means (A 1, AN) delay the release of an occupied official transmission until the identification · has ended. 5. Circuit arrangement according to claim 3, characterized in that after finding the authorization type the identification device is released again. 6. Circuit arrangement according to claim 3 and 5, characterized in that with a certain type of authorization (remote authorization) • the identified subscriber station switching means (Fb, F) accomplish the through-connection of the occupied office transmission. 7. Circuit arrangement according to claim 1 to 6, characterized in that 'that with the identification of the subscriber line for the purpose of billing, the subscriber number to be determined is transmitted to the tax rate (TM) of the charge printer. 1 sheet of drawings © 609 619/1 m 9.56 <609 835 3.57)