JPS6143057A - Remote attendant board system - Google Patents

Abstract

PURPOSE:To attain trunk line incoming call to each extension and trunk line call from each extension even if the handling of exchange at an attendant board is stopped by applying remote control from the attendant board installed remotely to handle an exchange in an exchange. CONSTITUTION:When an outgoing telephone set 9 dials a telephone set given to a private branch of exchange, it is incoming to an adaptor 3 via a trunk line 10. In case of handling at a remote attendant board 6, since contacts P, Q of changeover switches 22, 23 are connected, when an incoming call is detected by an automatic transer circuit 20 of the adaptor 3, a telephone number of the set attendant board 6 is called automatically and given to the attendant board 6. When the operator of the attendant board 6 inputs a control command commanding the connection to a subscriber telephone set 7, the control signal generated based on the command is transmitted to a controller 2 to attain talking between the outgoing telephone set 9 and an incoming telephone set 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a remote relay stand system, and more particularly to a relay stand system in which a private branch exchange is remotely controlled by a relay stand installed remotely.

[Background of the invention]

Traditionally, when using a private branch exchange, a relay board was installed in the company where the exchange was installed. We are discontinuing the exchange service at K, and connecting incoming calls to the central office at night at the guard room, etc. That is, by switching at night, the central office line is directly connected to a specific extension telephone within the number of central office lines. In addition, even with private branch exchanges that do not have a function to directly make calls from an extension to the central office line, and all calls to the central office line are made via a repeater, if the central office line is connected to a specific extension by night switching, the central office line can only be called from that specific extension. Unable to send. In such a private branch exchange, during hours such as nighttime and holidays, calls cannot be received from the central office line to any telephone other than a specific extension, and calls cannot be made to the central office line from any telephone other than a specific extension.
OBJECT OF THE INVENTION The purpose of the present invention is to improve such conventional drawbacks, and to make it possible to make calls from each extension to a central office line and to each Remote relay i that can receive calls
[Summary of the Invention] In order to achieve the above object, the remote relay stand system of the present invention has the following features:
In an exchange that connects a calling subscriber to a counterpart subscriber via a communication path by switching operations at a relay stand, an automatic transfer circuit for automatically placing a call and a wrinkle automatic transfer circuit or the above-mentioned service are provided between the communication path and the relay stand. If an additional device is provided with a switch for switching connection to either one of the relay stations, a remote relay station is installed at a location other than the above exchange, and the changeover switch is switched to the automatic transfer circuit. When there is an incoming call to the relay, the automatic transfer circuit automatically calls the remote relay, sets up two lines between the additional device and the remote relay, and connects the remote relay and the calling party. After connecting and asking the calling party for the other party's number 1. A feature of this system is that a control signal from the remote relay stand is sent to a communication path control device via the additional device to establish a connection between the originating party and the terminating party.

[Embodiments of the invention].

The following 14 implementations of the present invention will be explained and explained (with reference to drawings) 0 No. 1
The figure is a block diagram of a remote relay unit showing one embodiment of the present invention, and an internal block diagram of the additional device shown in FIG. 2 and in FIG. 1.

In Figure 1, the area within the broken line is a private branch exchange, 1 is a communication path, 2 is a control device, 3 is an expansion device, 4 is a relay board, 5 is a separation/combining circuit, 6 is a remote relay board, and T is an extension telephone. , 8
10,1.1 is a central telephone subscriber's telephone connected to an exchange other than the S company's private branch exchange (i.e., a telephone connected via a central office line),
12-19 Hiro signal line.

In Fig. 1, when the relay console 4 is suspending exchange handling, if an incoming call to the relay console or a certain Hiro call request occurs, the incoming call request is automatically sent to the remotely installed relay console. , the outgoing call request is transferred, and the exchange handling of the private branch exchange is controlled remotely from the remote relay stand.

In FIG. 1, an example will be described in which an extension telephone IK call is made from the external subscriber telephone 9 and a call is made.

(1) In the case of normal handling (tb, when switching is handled at the relay stand 4 of a private branch exchange), (f) When the calling party's telephone 9 dials the telephone number assigned to the private branch exchange, the well-known (according to the procedure described above), the call arrives at the relay stand 4 via the station ill O and the additional device 3. (b) The operator at the relay stand 4 responds to the call, and the calling subscriber's telephone 9
Listen to the number of the extension telephone T to which the user requests connection by voice.・f → Attendant 4) When the switchboard operator inputs a control command instructing connection to subscriber telephone 1, control signals generated based on this command are transmitted via signal line 15 and signal line 16. sent to device 2. (d) Control device 2 Hiro, according to well-known procedures, station! 110 and the subscriber extension 8 in which the terminating subscriber's telephone 7 is accommodated, and a call is made between the originating subscriber's telephone 9 and the terminating subscriber's telephone 7.

As shown in FIG. 2, the additional device 3 of the present invention includes an automatic transfer circuit 20, a separation/composition circuit 21, a changeover switch 22.
Note that P%qt'' is a terminal of a changeover switch 22.23, and 24.25 is a signal line.

When performing exchange handling on the relay board 4 of the private branch exchange (in normal times), the changeover switches 22 and 23 of the additional device 3
Terminal P and terminal R are connected (as shown by the broken line). This enables the above operations fi) to).

(ii) In the case of handling a remote relay stand (for example, when handling an exchange using the relay stand 6 installed remotely, connect terminals P and Q of the changeover switches 22 and 23 (solid line). Condition 11).

(b) When the originating subscriber's telephone 9 dials the telephone number assigned to the private branch exchange, according to a well-known procedure,
(b) When the automatic transfer circuit 20 of the additional device 3 detects an incoming call, it sends a call to the remote relay 1 with a forwarding destination set in advance.
The telephone number of the machine 6 is automatically dialed through the signal line 13. This allows the central office line 11 to be
The telephone number transmitted by the automatic transfer circuit 20 is sent to the higher-level exchange via the signal line 13° and central office line 11, and the higher-level exchange receives the call at the relay stand 6 using a well-known procedure. '1 The automatic transfer circuit 20 sends a control signal to the separation/synthesis circuit 21tC to start it.
If it is an analog network, the separation/synthesis circuit 21 uses a known technology such as a data over voice (DOV) method.
In addition, in the case of a digital network, the basic (B) channel for calls and the additional (D) channel for signals are used to synthesize the voice signal inputted through the signal line 24) and the control signal inputted as many as the signal line 25, and then It outputs to the line 13 and also classifies the synthesized signals that are input more than one signal line 13 and outputs the audio signal to the signal 1i24 and the control signal to the signal line 25. In the same way, connect to the remote relay stand 6. In the separating/combining circuit 5, the signal flatγ is connected to the signal line 24K in FIG.

The signal line 18 corresponds to the signal line 25 in FIG. 2, and the signal 111s corresponds to the signal M13 in FIG. The switchboard responds and the signal line ITS (Line 1 192 stations) [1
11, signal line 13. Signal line 24. Signal I! 12. Call the originating subscriber's telephone 9 via the central office line 10 and receive the number of the extension subscriber's telephone T for which the subscriber desires connection. (e) When the switchboard operator from the relay board 6 inputs a control command instructing connection to the subscriber's telephone 7, a control signal generated based on the command is transmitted to the signal line 18.
Signal line 19° Central line 11. Signal line 13. Signal line 25. It is sent to the control device 2 via the signal line 16. (f) The control device 2 connects the central office line 10 and the subscriber line 8 in which the terminating subscriber telephone 7 is accommodated by a well-known procedure, and connects the originating subscriber telephone 9 and the terminating subscriber telephone 1. Make a call.

The above explains the case where a call is received from the office line to the extension line.The procedure is the same when a call is received from the extension line to the office line.In other words, the signal line connected from the extension subscriber to the relay stand 4 is as follows. The signal line in Figure 2 is switched to the solid line side as shown by the switch 220P and the Q terminal. - When the built-in joiner goes off-hook, the automatic transfer circuit 20 of the additional device 3 is activated and the remote installation is performed. Automatically dials the telephone number of the relay stand 6 that is currently being used.0 This allows relaying! Switch operator 6 instructs connection to central line 105. When a control command is input, a control signal generated based on the command is sent to the control device 2.

In addition, although the example was expanded and explained using the relay stand of a private branch exchange,
The present invention can also be applied to switchboards, manual switches, etc. of exchanges other than private branch exchanges.

Figure 31. , FIG. 4 is a block diagram of a remote relay system and an additional device showing another embodiment of the present invention.

In FIG. 3, the two central office lines 11 are transferred by the automatic transfer circuit 20 without using the separating/combining circuits 21 and 5 of FIG.
, 11', and the remote relay stand 6 and the additional device 3
In this case, the office line 11 is used for voice signals, and the office line 11' is used for control signals. Calling subscriber telephone 9
In response to this, the switchboard operator at the remote relay stand 6 sends the signal line 11. Signal line 1
3,! Line 24゜Signal line 129 Talk to the calling subscriber telephone 9 via the office line 10, listen to the number of the incoming extension telephone 7, and input a control command to instruct the connection to the extension telephone T from the relay stand 6. , the control signal generated by the command is sent to signal line 11', signal line 13r, signal line 2
5. It is sent to the control device 2 via the signal line 16. This connects the control device 2 to the originating subscriber telephone 9 and the terminating subscriber telephone 7. In this embodiment, two central office lines are required; The lines are not congested, so if you have multiple office lines, there is little impact even if you use two lines.

In this way, even if the separation/synthesis circuits 21 and 5 are not used, and two multi-station lines are used to transmit to the automatic transfer circuit 20, and each is used for voice signals and control signals, the same result can be obtained. remote control is possible. Furthermore, the same control can be achieved even if one or two dedicated lines are installed between the relay console 4 and the relay console 6 without using a public line.

Note that the method of the present invention can be used not only at night or on holidays, but can also be used to concentrate exchange handling at all times. It is. In other words, (i) If a company with multiple business offices has installed private branch exchanges at each business office, it is possible to improve efficiency by concentrating exchange handling on relay boards at specific business offices during nights, holidays, etc. can be used to make and receive calls during that time period.

(ii) By concentrating the exchange handling of private branch exchanges of multiple different companies on the relay boards of public corporations or exchange handling agencies during nights and holidays, calls can be made and received efficiently during those hours. [Effects of the Invention] As explained above, according to the present invention, it is possible to remotely control a private branch exchange or a switchboard installed at a remote location to perform exchange handling. Therefore, even when exchange handling at the relay stand is suspended, calls can be made from each extension to the central office line, and calls can be received from each extension to the central office line, allowing for efficient exchange handling. I can do it.

Fig. 1 is a block diagram of a remote relay stand system showing two embodiments of the present invention, Fig. 2 is a block diagram showing an embodiment of the additional equipment shown in Fig. 1, and Figs. 1: Communication path, 2: Control device, 3: Additional device, 4.6: Block diagram of remote relay stand system and additional device showing another embodiment of
Relay board, 7: Extension telephone, 8: Subscriber line, 9: Telephone of other exchange, 1G, 11: Office line, 20: Automatic transfer circuit, 5
．． 21: Separation/composition circuit, □12: 2°23 = changeover switch.

Patent applicant: Nippon Telegraph and Telephone Corporation Figure 1 Figure 2 Convex figure

Claims (2)

[Claims] (1) In an exchange that connects a calling party to a terminating party via a communication path by switching operations at a relay stand, an automatic transfer circuit that automatically makes a call and the automatic transfer circuit or In addition to providing an additional device with a switch for switching connection to either one of the relay stations, a remote relay station is provided at a location other than the exchange, and when the changeover switch is switched to the automatic transfer circuit, the relay When a call arrives at the base, the automatic transfer circuit automatically transmits a call to the remote relay console using two lines, one for audio signals and one for control signals, connects the additional device and the remote relay console, and then connects the additional device to the remote relay console. After connecting the remote relay stand and the calling party and asking the calling party for the number of the called party, a control signal from the remote relay stand is sent to the communication path control device via the additional device. A remote relay stand system that connects a calling party and a terminating party. (2) In an exchange that connects a calling subscriber to a terminating subscriber via a communication path by switching operations on a relay stand, an automatic transfer circuit that automatically makes a call is provided between the communication path and the relay stand, and the automatic transfer circuit An additional device is provided which includes a first separating/combining circuit that is activated to separate and combine audio signals and control signals, and a switch that connects either the above-mentioned circuits or the relay stand. If a remote relay stand is installed at a location other than the above via the second separation/combining circuit, and the changeover switch is switched to both circuits, when a call arrives at the relay stand, the automatic transfer circuit will After automatically calling the remote relay board, setting up a line between the additional device and the remote relay board, connecting the remote relay board and the calling party, and asking the calling party for the number of the called party. A remote relay stand system characterized in that a control signal from the remote relay stand is sent to a communication path control device via the additional device to connect a calling party and a terminating party.