DE1055610B - Circuit arrangement for telephone extension systems with the establishment of conference connections by the extension officer - Google Patents

Description

The invention relates to a circuit arrangement for telephone extension systems, in the case of the extension officer via an interrogation line a connection to several lines of different connection paths is provided and still the Lines of the various connection paths via a conference line to a conference connection can be interconnected. It is known that the substation officer first deals with a Participants in. Connection and this then through, a special measure to the joint Turns the conference line on. Following this, the branch officer has to do the same call the other participants of the conference connection and one after the other to the conference line to turn on. The subsidiary officer therefore has to initiate and establish correspondence connections to carry out a significant brokerage activity. The purpose of the invention is the brokering activity the extension officer for initiating and establishing conference calls. This is achieved by connecting the interrogation line of the officer to the different connection paths switching means come into effect., which prepare the control of the relays, the marked after pressing a conference call button common to all lines Connect lines to the conference line.

The extension officer contacted the lines of the various, To put connection paths in connection. Are all participants in the conference connection notified, the extension officer presses a common hunt group button. This interconnects the conference call stations. The Extension officer connected to the conference line be.

It is known that a preferred subscriber has a special facility with a number of line selectors is assigned, via which the speakers coming into question for the conference connection to get voted. After dialing, the preferred subscriber presses a key and initiates this in preparation, the connection of the selected participants to the conference line and the call to this Conference attendees.

A line dialing system is also known in which a key is assigned to each extension, by means of which the call of all extensions and the connection of these extensions to a common line is brought about. The circuits of these known arrangements can be used to solve the on-Sdialtungsanordnung
for telephone exchange systems

with hex position

of conference connections

through, the branch bearate

Applicant:

Siemens & Halske Aktiengesellschaft,

Berlin and Munich,
Munich 2, Wittelsbacherplatz 2

Fritz Villinger, Großhesselohe near Munich,
has been named as the inventor

would not be used in the present invention.

An exemplary embodiment of the invention is shown in the drawing. The FSP place of the extension officer with the BA apparatus has an interrogation line ' AL. Lines L1, LI and LX can be connected to this interrogation line. The lines Ll, L2, LX lead either to transmissions from trunk lines, district lines, cross-connection lines, or they are direct lines to preferred call stations. Furthermore, one of the lines can also be the connection line from the private branch exchange to the dialer of the private branch exchange. To set up a conference call, the extension officer has to press the switch on button of the lines in question one after the other. If the button AT 2 of the line L2 is pressed temporarily, the relay AH2 is switched on:

1. +, GU, AT2, IAH2, -.

A holding circuit is established for relay AH 2:

2. +, lc, 2ah2, IIAH2, -.

SO »507/122

Relay AH2 closes contact 3 ah2, which creates a circuit for relay A assigned to the operator console:

3. +, W2, 3ah2, IAH, A, -.

Only relay A is actuated in this circuit. The relay AH remains in rest. Relay K 2 is switched on by relay AH2:

4. +, GU, 4ah2, K2, 5g2, -.

The relay K 2 is kept energized independently of contact 4 ah 2 via contact 5 £ 2. Relay A assigned to the location switches on relay B :

5. +, 6a, B, -.

Depending on relay B , the connection relay AS 2 of line L2 is now switched on:

6. +, GU, 7ST, 8c, 9b, 10ah2, AS2, -.

Relay B of location FSP switches on relay C as follows:

7. +, lib, C, -.

The relay C open with contact 1 c the holding circuit of the relay 2 AH 2 is C 8 Contacts open the energizing circuit 6 of the relay AS2. The following holding circuit now exists for the AS2 relay:

8. +, GU, 7ST, 12c, 13ir2, 14as2, AS2, -.

When relay AH 2 drops out , circuit 3 is opened by contact 3ah2, relay A drops out. Contact 6 a interrupts circuit 5 of relay B. Relay B opens circuit 7 of relay C with contact 11 b . For relay AS2 , after relays B and C have dropped out, the following holding circuit exists:

9. +, GU, 7ST. 8c, ISb, 13tr2, Uas2. AS2, -.

The interrogation line AL is connected to the speech wires a2 / b 2 of the line L2 via the contacts 16 as 2/17 as 2. The contact 18A2 is closed by the relay if excited in the circuit 4 and a circuit is thus prepared for the relay SA 2 , which connects the speech wires a2 / b2 of the line L2 to the conference line KL .

The officer establishes a connection via line L2 with the appropriate connection point and makes the participant of this point on the convocation a conference call.

The officer now has to call the other participant in the conference connection. For this purpose, she only has to press the switch-on button for the line via which the next conference participant can be reached. To connect the officer z. B. on the LX line , press the ATX key temporarily. The relay AHX is switched on:

10. +, GU, ATX, IAHX, -.

A holding circuit is established for the relay AHX:

11. +, Ic, 19akx, WAHX, -.

The relays A and AH assigned to the PIaU FSP are switched on by the relay AHX :

12. +, IV3, 20ahx, IAH, A, -.

Only relay A is actuated. The relay KX is also switched on:

13. +, GU, 2bahx, KX, 27gx, -.

The relay KX is kept energized independently of contact 26ahx via contact 28 kx. With contact 29 kx the circuit of the relay SAX is prepared, which connects the line LX to the conference line KL .

Relay B in circuit 5 is switched on by relay A. Relay B opens holding circuit 9 of relay AS2 with contact 15 b. The relay AS 2 drops out. The interrogation line AL is switched off from the line L 2 by the contacts 16 cw2 / 17 as 2. When relay B is switched on, an excitation circuit is established for relay ASX :

14. +, GU, 7ST, Bc, 9b, 21ahx, ASX, -.

After the response of the relay B of the place FSP , the relay C in the circuit 7 is switched on. The relay C interrupts with contact 1 c the holding circuit 11 of the relay AHX. The circuit 13 of the relay ASX is opened by contact 8 c. The following holding circuit exists for the ASX relay after relay C of location FSP has responded:

15. +, GU, 7ST, 12c, 22 trx, 23 asx, ASX, -.

When relay AHX drops out, circuit 12 of relay A is interrupted by contact 20 ahx. The falling relay A opens with contact 6 ο the circuit 5 of the relay B. The relay B causes the relay C to drop out with contact 11 b. The following holding circuit now exists for the ASX relay:

16. +, GU, 7ST, 8c, 15b, 22trx, 23asx, ASX, -.

The interrogation line AL is now connected to the speech lines ax / bx of the line LX via the contacts 24 as jf / 25 asx . The officer sets up the connection via the line LX to the desired connection point, and the participants of this connection point are also informed of the conference call.

To interconnect all participants

+ o via the conference line KL , the officer of the FSP area only has to press the joint group call key ST temporarily. The holding circuit 16 of the relay ASX is interrupted by contact 7.ST of this button. The connection between the interrogation kit AL and the line LX is interrupted by the contacts 24 asx 125 asx . The relays SA, SA2 and SAX are now switched on. The relay SA is switched on via the following circuit:

17. +, GU, 30ST, 3lc, ISA, -.

A holding circuit is established for the relay SA:

18. +, GU, 32c, 33sa, USA, -.

The FSP officer is connected to the KL conference management via contacts 34 sa / 35sa .

The relay SA2 is switched on via the following circuit:

19. +, GU, 30ST, 18 £ 2, ISA2, -.

The following holding circuit exists for relay SA2:

20. +, 36tr2, G2, IISA2, 37jo2, -.

55

6o

In the holding circuit of relay SA 2, relay (72 is also effective. Relay K2 is switched off by contact 5g2. Speech wires a2 / b2 of line L 2 are connected to conference line KL via contacts 38ja2 / 39jo2.

The relay SAX is energized in the following way when the ST button is pressed:

21. 4-, GU, 3QST, 2Vkx, ISAX, -.

The holding circuit for relay SAX is as follows:

22. +, 40trx, GX, USAX ₁ 41 sax, -.

Relay GX also responds in the holding circuit of relay SAX . The relay KX is switched off by contact 27g-, r. The speech cores ax / bx of the line LX are interconnected with the conference line KL via the contacts 42 sax / ίο 43sax.

To set up a conference call, the extension officer must press the connection buttons for the lines in question. When the officer is connected to the corresponding lines, the ^ relays of these lines prepare the control of the switch relay SA of the conference line KL . When the common key ST is pressed once, the connection relays SA of the corresponding lines are switched on and all conference participants are connected together at the same time.

If there is a conference connection of the place FSP with the lines L2 and LX via the conference line KL and the connection of the officer to the line Ll, which is not involved in the conference connection, is required, the officer of the place only has the connection button ATl of the line Ll to to press. The relay AHl is switched on:

23. +, GU, ATI, IAHl, -.

A holding circuit is established for relay AH 1:

24. -K Ic, 44aM, UAHl, -.

The following circuit is established for relays A and AH of location FSP:

25. +, JVl, 4SaHl ₁ IAH, A, -.

The relay A is now actuated, the relay AH remains in the rest position. When the relay AHl of the line Ll responds, the relay Kl is switched on:

26. 4-, GU, 5IaM, Kl, 52gl, -.

The relay K 1 is held independently of contact 5IaM via contact 53fei. The circuit of the relay SAl is prepared by contact 54Al, which connects the line L 1 to the conference line KL . Relay A of location FSP switches on relay B in circuit 5. The following circuit is now established for the connection relay ASl of the line Ll:

27. +, GU, 7ST, 8c, 9b, 46aM, ASl, -.

Relay B switches on relay C in circuit 7 via contact 11 &. The excitation circuit 17 is opened by contact 31c and the holding circuit 18 of the relay SA is opened by contact 32c. The relay SA drops out. By opening the contacts 34 sa / 35sa , the officer of the FSP place is switched off by the conference management KL. ' When relay C responds, a holding circuit is established for relay ASl:

28. +, GU, 7ST, 12c, 47frl, 48asl, ASl, -.

When relay C responds, circuit 24 of relay AH1 is interrupted by contact 1c. The relay AHl opens the circuit 25 of the

40

45 Relay A. The circuit 5 of relay B is opened by contact 6a. Relay B causes relay C to drop out with contact 11 b . The following holding circuit now exists for relay AS1:

29. +, GU, 7ST, 8c. 15b, 47trI, 48α.? 1, ASl, -.

The interrogation line ^ iL is connected to the speech lines α l / i »1 of the line L1 via the contacts 49 as 1/50 asl. The officer of the place FSP can answer an existing call about the line Ll or also establish a connection in the outgoing direction. If the participant reached via the line L1 is also to be connected to the conference line, the officer alone has to temporarily press the common key ST. The holding circuit 29 of relay AS 1 is interrupted by contact 7ST. The line L1 is disconnected from the interrogation line AL by opening the contacts 49 as 1/50 «1. The relay SA in the circuit 17 is switched on via the contact ZQST and kept energized in the circuit 18. Pressing the button also switches on relay SA 1 on line Ll:

30. +, GU, 30ST, £ 54 1, ISAl, -.

The relay SAl is held in the following circuit:

31. +, 55irl, Gl ₁ USAl, 56sal, -.

The relay Gl is excited in the aforementioned circuit and relay Kl is switched off by contact 52 ^ 1. The speech lines α 1 / b 1 of the line L 1 are now connected to the conference line KL via the contacts 57 sa 1/58 sal . There is thus a conference connection between the place FSP and the lines Ll, L 2 and LX.

If there is a conference connection and one of the lines is to be switched off by the officer of the FSP from the conference line KL , the officer only has to press the switch-on button of the line in question and then the common disconnect buttons TT. This mode of operation also corresponds to the disconnection of a connection via an exchange line, so that the officer has to carry out the same switching measures in each case.

If, as described, the lines L1, L2 and LX are involved in the conference connection in addition to the seat FSP and line L 2 is to be disconnected from the conference connection, the officer must press the AT2 button. The relay AH in circuit 1 is energized and held in circuit 2. Since the connection relay SA2 of the conference line KL is excited, the contact 59 sa 2 is closed. The resistor W2 is hereby short-circuited. It is then not only the relay A, but also the relay AH of the place FSP energized via contact 3 ah 2. Relay A switches on relay B in circuit S. The relay AS2 of the line LI in the circuit 6 is switched on. Relay B of place FSP switches on relay C in circuit 7. The holding circuit 8 is established for the relay AS2. The relay C interrupts the holding circuit 18 of the relay SA at the contact 32 c. However, the following holding circuit is established for the relays SA and AH:

32. +, UAH, 60 ah, 61c, 33 sa, USA, -.

The connection of the place FSP to the conference circuit KL is hereby maintained. With arrival

Claims (1)

speaking of relay C , circuit 2 of relay AH2 is opened by contact Ic. Contact 3 afc 2 interrupts the circuit of relays A and AH of place FSP. The relay A opens with contact 6 α the circuit 5 of the relay B. The circuit 7 of the relay C is opened by contact 11t. When the relay C drops out , the circuit 32 is interrupted. The relay AH drops out. There is holding circuit 18 for relay SA. When relay C drops out, relay AS 2 of line L 2 in circuit 9 is switched on. If the FSP officer now switches on the common cut-off button TT , then the cut-off relay Ti? 2 of the line L 2 a circuit is established: * 5 33. +, GU, TT, 62as2, TR2, -. A holding circuit is established for relay TR2: 34. +, 63 ^ 2, 64ir2, TJ? 2, -. * ° The circuit 9 of the relay AS 2 is separated by contact 13 ir2. The speech wires α 2/6 2 of the line L 2 are switched off from the interrogation line · AL. Relay TR2 opens circuit 20 with contact 36fr2 . Relays G2 and SA2 drop out. The connection between the line L 2 and the conference line KL is canceled by the contacts 3850.2 / 39so.2. When relay G 2 drops out, the circuit of relay TR2 with contact 63g-2 is interrupted. With this, the relay TR 2 is returned to the rest position when the facilities of the lines L2 are released with certainty. By pressing the switch-on button AT 2 of the line L2 involved in the conference connection and then pressing the common disconnect button TT , the line L 2 is switched off from the conference line KL. The officer remains on the contacts 34 sa / 35 sa with dex Konferenzieitung KL in connection. The disconnection of a line from the Konierenz line KL can also be initiated by the call station reached via the line L2. The triggering stimulus given by the telephone station by hanging up the receiver is transmitted to relay TR2 via line L2-Uc , and relay TR 2 then causes relay 5.4 2 to drop out in the manner described. If there is a conference connection between the extension officer of the FSP place with the lenders L1, L2 and LX and the extension officer wants to switch off from the conference management KL , the officer only has to return the contact GU to the rest position. The circuit 18 of the relay SA is interrupted. The relay SA opens the contacts 34 yes / 35 yes, so that the officer is disconnected from the conference line KL. The triggering of the still existing conference connection between the lines Ll, L2 and LX can be initiated by hanging up the receiver at the corresponding subscriber stations. PLANT CLAIMS: 1. Circuit arrangement for telephone extension systems, in which an interconnection to several lines of different connection paths is provided for the extension officer via an interrogation line and the lines of the connection paths can be interconnected via «crazy conference line to form a conference connection, characterized in that by connecting the interrogation line (AL ) the officer to the various connection paths (L2fLX) switching means (A'2 / KX) come into effect, which prepare the control of the relays (SA2 / SAX) , which after pressing a conference call button (5t) common to all lines, the marked lines ( L2ILX) to the conference line (KL) . 2. Circuit arrangement according to claim 1, characterized in that when the interrogation line (AL) is connected to the line (L2) of a connection path, a relay (K2) associated with this line (L2), which prepares the conference connection, is energized which controls the relay (SA 2) to connect the line (L 2) to the conference line (A'L) regardless of the connection of the interrogation line (AL) to the line (L2). 3. Circuit arrangement according to claim 2, characterized in that after the connection of all lines (L2fLX) to the conference line (KL) the conference verb in preparation preparing relays (K2 / KX) are switched off. 4. A circuit arrangement according to claim 1, characterized in that with an existing conference connection of the extension officer with the corresponding lines (L2 / LX), via which other conference participants are connected, and pressing the query button (AT 1) of a line not involved in the conference connection (Ll ) automatically with the control of the corresponding connection relay (^ 451), the extension officer is switched off from the conference line (KL) 5. A circuit arrangement according to claim 1, characterized in that with an existing conference connection of the extension officer with the lines (Ll, L 2, LX) different connection paths by pressing the switch-on button (ATZ) for the connection of the interrogation line (AL) with the line (L2) of a connection path that is involved in the conference connection, once through the control relays (A, B ₁ C, AH) of the place (FSP) the connection relay (SA) for the connection of the extension officer with the conference line (KL) is kept energized and the circuit continues of the isolating relay (TR2) of the line (L 2) is prepared, which is completed after pressing the common isolating button (TT) and the temporarily energized isolating relay (TR 2) with the release of the devices of the line (L2) of the connection path also the connection relay (AS "2) for the connection of the discharge line with the line (L2) of the connection path and the connection relay (5 ^ 42) -for the connection of the line (L2) with the conference line (Ä "L) switches off. Considered publications: German Patent Specifications Nos. 494 519, 703 783. 1 sheet of drawings 909 507/122 4.