JPS61281663A - Branch board monitoring and interrupting call system - Google Patents

Abstract

PURPOSE:To make a branch board and a supervisor table simple and small in size as much as possible and to prevent the deterioration in the calling quality at interrupting calling by eliminating the change of the calling level at connection when being monitored and interrupted from many supervisor tables to the branch board. CONSTITUTION:As publicly known by a hybrid circuit 54, two lines are connected at the calling line side of the branch board, four lines are connected at a telephone set trunk 55 side, and for the telephone set trunk 55, the interruption calling can be executed, namely, the branch board operator can interrupt to the calling with a caller and can call, then, for the calling from the supervisor table and the calling to the table, amplifying and transmitting can be processed respectively individually, and therefore, at the time of interruption, the change will not occur at the calling level. When the monitoring only is executed, connection may be executed with the hybrid circuit 54 by other telephone set trunk 59.

Description

[Detailed Description of the Invention] [Summary] A relay stand and a supervisor stand of a digital telephone exchange are provided,
This makes it possible to monitor or interrupt the call between the operator and the calling party by receiving the call through the network to the trunk of the telephone and passing through the 4-wire branch call circuit.

[Industrial Field of Application] The present invention relates to the control of a relay stand where a large number of operators are present, such as in the police and fire department, and relates to an interrupt call system that monitors or interrupts a caller's call depending on the content of the caller's call. .

Fire-related 119 calls include both fire and emergency calls.
In cases such as explosions, reporting can be confusing, and the police
When calling 00 number, as in the case of a murder case, it is necessary to contact many people immediately, the person directly in charge at the call reception desk first accepts the call, listens to the content of the call, and determines that the call is important. At that time, he asked the supervisor to monitor him by giving signals such as hand movements. The same applies to calls made to number 104 for directory assistance services.

On the other hand, in companies, a switchboard is installed on the central office line from the telephone office, and an operator exchanges calls between callers and internal companies, and in the case of large companies, supervisors carry out organizational control. In this specification, such call reception desks and switching stations are collectively referred to as "relay stations".
It is described as follows.

[Prior Art] Conventionally, the connection between a relay stand and a central office line/extension line was as shown in FIG. In other words, 11.12-- is a plurality of relay stations where operators are seated, 21.22- is a supervisor's stand provided as needed, 3 is a digital network, 41.42... is a relay stand. control trunk, 51
52 is the same key, 53 is the circuit network, 61 is the supervisor's handset on the supervisor's stand, 62 is the same key, 63 is the key-compatible relay, 64 is the key. 65 is a circuit network, 66 is an interrupt switch, and 67 is an amplifier.

When an operator receives an incoming call and answers the call, the operator does so immediately.When connecting to another called party, such as an extension, the operator operates the numeric keypad provided adjacent to the key 52.
Dial the called party number.

A called party is called by a central control unit and network 3 (not shown). When monitoring during a call at the supervisor's will, or at the request of the attendant operator,
On the supervisor's stand 21, a key 62 corresponding to the stand is operated. key 6
2 operates the relay 63 and closes the contact 64, so that the handset 61 and the operator's handset 51 are connected in parallel, and the contents of the call can be monitored. At this time, since the handset and receiver are connected in parallel to the connection line from the network 3, a change in the speech level occurs, so an amplifier 67 and a circuit network 65 are used to prevent the caller from sensing an abnormal state. The switch 66 is operated to interrupt and make a champion call if necessary as a result of monitoring.

[Problems to be solved by the invention] Since a large number of devices are connected to the supervisor's stand as described above, it is possible to prepare not only one supervisor's stand but two or three. When it became necessary, it became large-scale and expensive. Furthermore, when two or more supervisor stations perform monitoring/interrupting calls when necessary, there is a drawback that the call level drops significantly due to multi-connection.

SUMMARY OF THE INVENTION An object of the present invention is to improve the above-mentioned drawbacks, to provide a monitor/interruption call system in which the relay stand/supervisor stand is made as simple and compact as possible, and the call quality does not deteriorate during an interrupt call.

[Means for Solving the Problems] In the principle diagram of the present invention shown in FIG. 1, the right side of the dashed-dotted line shows the exchanger side, and the left side shows the line/relay side.

In Fig. 1, 11.12- is a plurality of relay stations where opaques are seated, 21.22- is a supervisor's stand provided as needed, 3 is a digital network, 41
．． Reference numerals 42, . . . indicate an attendant control trunk, 51 a handset for an operator at the attendant attendant, 52 a key, and 53 a circuit network.

54 is a 4-wire branch communication circuit (hybrid circuit) installed in the warehouse communication path of relay stand 11, 55, 56, etc. are telephone trunks installed on the exchange network side, prepared at least as many times as there are supervisor stations, and the other end of the telephone trunk network is connected to a hybrid circuit 54;
1 is the supervisor's handset on the supervisor's desk, 6 is the attendant control trunk installed on the connection line between the supervisor's desk and network 3, and 69 is used when calling the attendant from the supervisor's desk 21 using the numeric keypad. show something

[Function] When the supervisor's desk 21 interrupts the relay console 11 during a call, the numeric keypad 69 is used to dial to call the relay console 11. A calling number is set as an extension number for the relay consoles 11, 12, . The telephone trunk 55 calls the relay console 11, and when the relay console 11 responds, it is connected to the hybrid circuit 54.

Since it is connected in parallel to the telephone line of the relay stand 11 via the hybrid circuit 54, an interrupt call can be made. When calling the relay console 11 from the supervisor's desk 22 and performing monitoring or interrupting at the same time, another call number for the relay console 11 is dialed. It is convenient to set the calling number of the relay stand If to a number similar to that used as a representative telephone number for the subscriber. At this time, a call arrives at another telephone trunk for the relay stand 11, for example, 56, but since the hybrid circuit 54 side is multi-connected, there is no problem with the interrupt operation.

U Embodiment FIG. 2 is a diagram showing the configuration of an embodiment of the present invention. The same reference numerals as in FIG. The switch side is shown.

7 in the hybrid circuit 54 (4-wire branch communication circuit)
1 is a hybrid transformer (YB), 72 is an amplifier (AMP), and 73 is a variable attenuator (PAD). 5
5 is a telephone trunk that can be used for interrupting calls, 59 is a telephone trunk that can only be used as a monitor, 81 is a connection terminal (MDF),
Reference numeral 82 indicates a response reception relay circuit (RG), and reference numeral 83 indicates a game start contact.

As is well known, the hybrid circuit 54 connects the telephone line side of the attendant 11 to a two-wire connection, and the telephone trunk 55 makes a four-wire connection. It is possible to interrupt a call and make a call, and since calls from the supervisor's desk and calls to the supervisor's desk are amplified and transmitted separately, there is no change in the call level when there is an m+ call. . Moreover, when only monitoring is performed, it is sufficient to connect to the hybrid circuit 54 through another telephone trunk 59.

[Effects of the Invention] As described above, the present invention is effective because there is no change in the call level at the time of connection when a relay console is monitored or interrupted by a large number of supervisor consoles. Moreover, since the supervisor's stand itself is not equipped with an amplifier, a changeover switch, etc., it is extremely compact, and only a small amount of hardware needs to be added to the internal communication path of the relay stand, making the system inexpensive.

The telephone trunk is provided for extension subscribers, which is slightly more capable than the exchange, so all you need to do is change the connection.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the basic configuration of the present invention, FIG. 2 is a diagram showing the configuration of an embodiment of the present invention, and FIG. 3 is a diagram illustrating a conventional relay stand interruption call system. 11.1:l''---Relay stand 21.22---Supervisor stand 3-Digital network 54---4-wire branch call circuit 55---Telephone trunk patent Applicant Fujitsu Limited Agent Patent Attorney Eisuke Suzuki Figure 1

Claims (1)

[Claims] A supervisor's stand (21), (22), and a plurality of relay stations (11, 12), attached to a telephone exchange including a digital exchange network (3). A system in which the operator who operates the relay console (11), (12), etc. uses the supervisor's console (21), (22), etc. to monitor and make an interrupt call. , a 4-wire branch communication circuit (54) and a telephone trunk (55) are installed in the internal communication paths of the relay consoles (11), (12), etc., and the supervisor's consoles (21), (22), etc. ... so that calls can be received from the network (3) to the telephone trunk (55), and the other end of the network (3) of the telephone trunk (55) is connected to the four-wire branch communication circuit (54). , a relay stand monitor/interruption call system characterized by being connected to each other.