DK141468B - CONNECTING TO TELECOMMUNICATION DISTRIBUTION ISAER PHONE DISTRIBUTION SYSTEM WITH INDIVIDUAL ASSIGNMENT OF SUBSCRIPTION CALL NUMBERS AND CONNECTION DATA DATA - Google Patents

Description

(®) \ 3 / (11) PRESENTATION 141468 DENMARK CD Intel.'Η 04 .0 3/47 '(21) Application No. 1 28 ^ / 7 ^ - (22) Filed on 8 · mST · 197 ^ (23) ) Running Day Mar 8 197½ (44) The application presented and.

the submission was published on 1 March * 1

DIRECTORATE OF

PATENT AND TRADE MARKET (30) Priority demanded from it

9. tnar. 1975, 2511886, DE

(71) SIEMENS AKTIENGESELLSCHAFT, Berlin and Munich, 8 Munich 2, Wittels * Tjacherplatz 2, DE.

(72) Inventor: Helmut Edllnger, Ammereeestrasse 2, 8021 Neuried, DE.

“· '··'. ·., · -Ti> (74) Plenipotentiary in the proceedings:

International Patent Office.

(54) Connection to telecommunications intermediation services, telephone interconnection facilities =, with individual assignment of subscriber dialing numbers and connection * position data.

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a switch to telecommunication switching systems, in particular telephone switching systems in which the connections are interconnected over centrally controlled multistage switching fields and in which subscriber connections are denoted partly by switching field connection setting data and partly by varying subscriber dialing numbers, as well as different subscriber dialing numbers.

In such telephone switching devices, there is the possibility that the subscriber dialing numbers 'assignment to the switchboard connection position may change'. Subscriber sites with a specific dialing number can thus be connected at different locations in the switch field. Correspondingly, stored data indicating this association must be changed. It is the object of the invention to make this data storage as flexible as possible and, as far as possible, to avoid interfering with the connection position in case of storage failure. In addition, calls using unsaved call numbers must be distinguishable from calls to recorded subscriber connections.

The invention consists in that subscriber connection couplings have both a first feature input, which switches to any subscriber dialing number adjustable switches in the respective subscriber connection coupling, with a characteristic output, as a second characteristic input, over coupling means indicating the connection state (available or busy). the switch, is connected to the same feature output, the first feature input is associated with the subscriber dial number assigned to the subscriber connection, and the second feature input and feature output is associated with the subscriber connection's switch field connection setting data and the subscriber connection connections are assigned by their respective sign and identified by a seeker.

By means of the invention, by storing subscriber dial numbers in single order to the subscriber connection connections, it is possible with one and the same searcher in a first process after receiving a selected subscriber dialing number to ascertain a particular subscriber connection connection according to its switching field connection data. In this way, assuming that the same subscriber dial number is incorrectly set on two different subscriber connection connections, a connection manufacture to one of these two subscriber connection connections is ensured. During another phase, it is ascertained whether the subscriber connection connection uniquely determined in the first course is free or not. For this purpose, the subscriber connection coupling is controlled during the first cycle over said first feature input by the selected subscriber dial number, but during the second cycle over said second feature input. A seeker used during the first process for identifying the subscriber connection coupling is also used in the coating state test of the subscriber connection coupling. If this involves a multi-step searcher working successively in several search selection steps, the occupancy connection test of the subscriber connection connections stops after the first search selection step.

In the drawing, an embodiment of the coupling according to the invention is shown. The exemplary embodiment relates to a local telephone exchange facility. The description assumes the well-known local telecommunication system ESK 400 E from "Information Fernsprech-Vermittlungstechnik" 1-66, page 3ff (published by Siemens & Halske AG).

A switching field K is built in reverse grouping according to German patent 1,235,379. To the inputs of this switching field are connected housing connection sets HV1 and HV2 with each one input and output, as well as subscriber connection connections TA1 and TA2, central connection set AVI and AV2 and selector receiver WE.

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The home connection sets serve in a known manner for routing connections between two to the same local telecommunications system connected subscriber sites. To this end, the home connection sets are known in each known manner, each with an input and an output connected to the switching field K, the selector receiver WE serves to record the select information sent by a select subscriber. A subscriber who calls outgoing will always be first, associated with a voter. After the dial termination, this connection is disconnected again and the calling subscriber, as desired, is connected across the switch field.

The central connection sets AVI and AV2 serve in known manner for the connection of the central lines ALI and AL2 to the coupling field. This may also include connection lines to other local telephone switching systems.

The subscriber connection terminals TA1 and TA2 serve in known manner for the connection of subscriber sites Ti and T2 over subscriber lines to the switching field K. The subscriber connection connections are able to provide the relevant subscriber location with information about the state, ie. available or busy · In addition, the subscriber connection connections in a known manner serve to activate a viewfinder not shown in detail in the manner shown here in detail in order to cause that subscriber connection connection over the switch field K to be connected to a free selector receiver WE.

The number of coupling devices mentioned in detail above, connected to the input of the coupling field K, is determined by the traffic loads present in each case. All coupling devices are not shown in detail in connection with a central control Z.

The switching field K is controlled over eft sets E. This too is connected to the central control and again receives from its control orders.

From the selectors, a multi-core cable M leads to a storage P. This cable is connected to all the receiver receivers WE.

From the storage P, a similarly multicore line R leads to all subscriber connection connections. Of the subscriber connection coupling TA1 in the upper part of the drawing, further details are shown in the middle part of the drawing within the dotted frame.

Each subscriber connection connection has two coincidence ports G1 and G2. Three of their inputs are connected to the multi-core wire R. A fourth input, which is a control input, is connected to the central control Z.

The multi-core conduit R consists of three conduit members R 1, R 2 and R 3. Each cord section consists of a total of ten cord cores, of which only one is shown first, second and last. The subscriber dial numbers used in the present local telephone exchange facilities are three-digit. Each subscriber code number thus includes one hundred digit, one tier digit and one digit. Each selected subscriber dialing number reaches first from the selected recipient WE over the multicore line M to the storage P. Upon request of the central control Z, the selected subscriber connection dialing number is passed over the multicore line R to the subscriber connection connections. The hundred digit is decoded over the conduit R1, the tier digit over the conduit R2 and the single digit over the conduit R3. Although the individual digits of each subscriber dialing number are output decoded over the associated wiring portion, each three-digit dialing number appears on the multi-core wiring R in a decadal coded form.

If a dialing number selected by an outgoing calling subscriber relates to an external connection, that is, not a second subscriber connected to this intermediary, the selection information received in the relevant receiver WE is transmitted over the line M. and the storage P to the central control Z, as on Here, not described in detail, the preparation of the selected external connection takes place. For the preparation of internal connections, that is, between two subscriber stations connected to this local telephone exchange facility, the subscriber dial numbers from the relevant dialers WE are transferred over the line M and the storage P to the multi-core line R.

First, however, it should be noted that in the present local telephone *, switchgear there are more subscriber sites Ti to T5 than subscriber connection switches TA1 and TA2. It must be assumed that each subscriber has his or her own dialing number and subscriber location. But at the same time, only a few of the existing subscribers are present. Their subscriber sites are connected to the transmission system. The other subscriber sites are not connected to the transmission system. However, they keep their own subscriber dial numbers.

It is also possible to uniformly connect the subscriber connection terminals TA1 and TA2 and the central connection sets AVI and AV2. In this way, it is possible that, according to the present traffic needs, a comparison can be made between the number of subscriber points connected to a specific time and the number of operational central connection lines. In times when there is strong internal traffic, e.g. a large part of the central connection sets are disconnected and these transiently operated as subscriber terminal connections. The same applies the other way around.

Since the subscriber locations now have fixed dialing numbers, but no unchanged connection position in the switching field, there are switching means in each subscriber connection switching in which the respective connection between subscriber dialing numbers and connection position can be optionally stored in the switching field. Each of the subscriber connection couplings for this purpose has an attachment unit consisting of rotary couplers D1, D2 and D3. The connection of the rotary coupler contacts to the cores of the multi-cored conduit R constitutes a first characteristic input K1 for each of the subscriber connection connections, relieves the condition that

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connection sets AVI, AV2, etc. can be operated as subscriber connection connections »there is also one connection unit per centralforbindelsessæt.

It is now assumed that the subscriber connection switch TA1 is connected to the subscriber location Ti with the dialing number 210. Accordingly, in the subscriber terminal switching TA1 the rotary switch D1 is set to the hundred digit 2, the rotary switch D2 to the tier digit 1 and the rotary switch B3. 0.,

For the sake of simplicity of imaging and description, the rotary couplers are not drawn with 10, but with fewer coupling positions. Similarly, it is assumed that the subscriber location T2 is connected to the subscriber connection connection TA2 down the dialing number 102.

If the subscriber dialing number 210 is now selected by a calling subscriber, the multi-core conduit R will mark the second conduit choir of the conduit portion - R 1, the first conduit choir of the conduit portion R2 and the last conduit choir of the conduit portion R3. Since the dialing number 210 is set in the subscriber connection connection TA1, the OG circuit GI receives on each of its three inputs an input mark. Furthermore, all of the control inputs of all AND checks <J1 are also marked in all other subscriber connection connections. In this switching state, all four inputs of the AND circuit G1 in the subscriber terminal TA1 are marked. An appropriate output signal is output which over the output of the circuit Go reaches the viewfinder S. The applicant S is thereby activated to ascertain it ·. subscriber connection link from which this signaling is based. The search result indicates the subscriber connection position data which corresponds to the subscriber connection position of the subscriber connection connection TA1 in the switch box K. The search result of these subscriber connection position data. . the finder S submits this to the storage P.

In the processes described above, the selected subscriber dialing number was converted to the relevant subscriber connection location data, under which the subscriber connection switch can be found to which the subscriber open station which can be selected by that subscriber dialing number is connected.

Also, if a subscriber dial number is selected which denotes a currently unconnected subscriber location, that subscriber dial number is not set in any of the subscriber connection switches. In this case, the finder S receives no search activation over the OR circuit G3 in one of the subscriber connection connections. From this, the central control Z recognizes that a dionnent top call number has been selected, which denotes a currently unlinked subscriber location. Then, the connection is diverted to an intermediary site which is connected in a similar manner to the housing connection sets HV1 and HV4.

If a conversion of a selected subscriber dialer has occurred to. its associated subscriber connection position data and these have been recorded in the repository

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6 P, the central control Z now conducts the test of the subscriber connection coupling selected by the corresponding subscriber dial number with respect to its occupancy state, ie. whether it is free or busy. The coating state of the subscriber connection coupling TA1 is indicated by the switch b. If the subscriber connection coupling TA1 is engaged, the switch b is opened. If the subscriber connection connection TA1 is free, the switch b is closed, as shown in the drawing.

The subscriber connection position data for each subscriber connection connection again consists of a three-digit number, ie one hundred digit, one tier digit and one digit. It is assumed that the subscriber connection coupling TA1 has the subscriber connection position 102. If, from the memory P, subscriber connection data is provided with the hundred digit 1, the tier digit 0 and the single digit 2 - on the multicore line R, in the conduit part Ri is the first conduit, in the conduit part R2 the last wire and in the wire part R3 the second wire marked. In this way, the three wires leading to the OG circuit G2 of the characteristic input K2 in the subscriber connection connection TA1 are marked. Since, at this stage of the switching process, it is not a conversion of a selected subscriber dialing number to the subscriber connection setting data in question, but the test of the already clearly identified subscriber connection switching, the central control Z does not mark the AND circuit Gi of all subscriber connection switches, but their OG Circuit G2 «All four inputs of OG circuit G2 in the subscriber connection connection TA1 are thus marked. If the subscriber connection connection TA1 is now vacant, a search activation for the viewfinder S is released over the closed contact b and the OR circuit G3.

The applicant begins to work. It is built up in several steps, not shown in detail. It has three search parts. The first search section serves to determine the hundred-digit in the connection position data in the subscriber connection link that provides search activation. The second and third search parts correspond to the tier digit and the single digit in the subscriber connection position data in question. The three search parts in the finder S work one after the other. In a first search part sequence, the hundred digit is found in the subscriber connection position data in question. In a second and third search part sequence, the tier digit and the single digit are successively ascertained in the subscriber connection position data concerned.

In the occupancy state test of a selected subscriber connection connection, it is already established, after determining the hundred-digit in the relevant subscriber connection data, that is, even after the first search part sequence for the applicant S, that the subscriber connection data controlled by the subscriber connection position data over the storage P is available. Thus, in the occupancy condition test by means of the viewfinder S, its workflow can be significantly shortened. Of the normally consecutive three search sub-sequences,