JPS5989062A - Switchboard connection system - Google Patents

Abstract

PURPOSE:To simplify the constitution of a switchboard connection system and to improve both operability and reliability by including a switchboard which performs the exchange connection into an exculsive time division switch and having an exchange connection of mutual calls between an automatic telephone exchange and the switchboard via a time division switch. CONSTITUTION:An automatic telephone exchange 10A and a switchboard device 10B are provided to a telephone exchange system. A CPU 11A is provided to the exchange 10A to perform desired exchange connection and processing; while a controller 11B is provided to the device 10B. At the same time, time division switches 12A and 12B are added for desired exchange connections. Then a switchboard trunk 13 and plural switchboards 14 are included in the switch 12B of the device 10B. In addition, a digital trunk 16, an outgoing trunk 17 and an incoming trunk 18 are connected to the switch 12A of the exchange 10A. Then the mutual calls are exchanged between the exchange 10A and the switch-board 10B by switches 12A and 12B via a tandem connection of the trunk 16 of an in-channel style. This simplifies an exchange connection system.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a switchboard connection system in a telephone switching system.

[Prior art]

Switchboards have traditionally been commonly used in telephone exchanges (particularly automatic
It is incorporated as a function of the telephone switching system, and performs switching connection operations for manual relay calls, international calls, reception/intra-system calls, and other calls that require operator intervention.

Hereinafter, an outline of its operation will be explained with reference to a relay system diagram of an example of a conventional switchboard connection system shown in FIG.

Here, 1 is an automatic telephone exchange (for example, a time-sharing one)
A central control unit (CP) that centrally controls and processes the entire exchange connection operation, 2 is a time dll related to the communication path switch.
The switch (TSW), 3 is the switching board trunk (POT).
), 4 is a telephone key and a lamp.

An exchange console (OPD), which is comprised of a display, a head center, and other items necessary for the operator's exchange connection operation, and is housed in the time division switch; 5 is an exchange console controller (POC) for controlling the OPD; 6 is an OPD; Digital trunk (DT) for general trunk lines accommodated in the above time division switch
, 7 is an outgoing trunk (OGT), 8 is a coterie trunk (ICT), and 9 is a subscriber telephone (SUB).

This is a typical switchboard connection, and the incoming trunk I from another station is
A case in which a request for connection (incoming call) to the switchboard 4 is made with a specific number via the CT 8 will be explained below.

First, the central control device 1 connects the trunk 8 to the switching board 4 via the time division switch 2.

At the switchboard 4, the operator performs the necessary operations according to the service request, such as checking the number of the calling party, and the central control unit 10 system imi causes the switchboard 4 to: The above connection path is extended and the time division switch 2
After being connected to the trunk 3 for the relay stand, from there it is further connected to the desired subscriber telephone 9 via the time division switch 2.

In this case, the operator at the exchange table 4 is
, perform operations such as calling back the subscriber when the connection between the subscriber telephones 9 fails.

In this way, the conventional switchboard connection system uses the same time-division switch 2. Since a central control unit is used, not only does the scale of the automatic telephone exchange become large, but the software required to operate it is also complicated, and it is not easy to add services and functions.

In particular, since all switchboard operations and connection control are performed through the information reception and processing in the central control unit 1, it is necessary to prevent connection delays from occurring, regardless of the size of the switchboard. The control device 1 requires high-speed processing capability and large-capacity storage capability, which is not economical.

[Purpose of the invention]

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the drawbacks of the prior art described above and to provide an economical and functionally flexible switchboard connection system.

[Summary of the invention]

The 114 configuration of the switchboard connection system according to the present invention is such that a switchboard that performs switchboard connection for manual relay calls, international calls, reception/guidance calls, and other calls that require operator intervention is provided exclusively for the switchboard. The control device allows calls between the automatic telephone exchange and the above-mentioned switchboard to be routed through the time-sharing switch via an in-channel digital trunk tandem connection between them. It is designed to encourage exchange connections.

In short, by completely separating the functions of the part that only performs general automatic exchange connection operations and the part that only performs switchboard connection operations, and by performing the connection operations related to the switchboard via a dedicated time-sharing switch. This eliminates the need for unnecessarily high-speed processing capacity and large-capacity storage capacity in the central control unit on the automatic exchange side, reduces the scale of the equipment, and improves economy by simplifying the software. The present invention is intended to add functional flexibility such as the addition of services and functions on the switching board side.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a diagram of a mystery method in one embodiment of the switchboard connection method according to the present invention.

Here, IOA and IOB are the automatic telephone exchange, switchboard equipment, 11A, and II in the telephone exchange 7 system, respectively.
B is an automatic language switching machine 10A and a switchboard device 1, respectively.
A central control unit (
CP), control device (OCP), 12A, 12B are time division switches (TSW, TSW-P) for connecting the necessary exchanges to the automatic telephone exchange 10A and switchboard device 10B, respectively.
), 13 is a switchboard trunk (POT), 14 has a function necessary for switching connection operation, and 13 is a switchboard trunk (POT);
15 is a switchboard controller (POC), 16,1 that controls the switchboard (OPI) housed in 2B;
7.18 are digital trunks (DT), outgoing trunks (OGT), and incoming trunks (I) for general trunk lines, respectively.
CT), 16A.

16B, each opposing digital trunk (DTA, DT
B), 19 is a subscriber telephone (S U B ).

First, the digital trunk 16 of the automatic telephone exchange 10A
．． Exit trunk 17. The operation of connecting to other stations via the incoming trunk 18 is the same as in the conventional example.

All necessary connections between the automatic telephone exchange 10A and the switchboard device 10B are made through each time division switch 12A.

Digital trunk 16A accommodated in 12B.

16B in tandem connection.

The switching board connection operation will be explained below.

For example, a switchboard connection call that arrives at the incoming trunk 18 by a specific number etc.
l+1, it is connected to the digital trunk 16A via the time division switch 12A in the same way as a general tandem connection call.

When the control signal is transmitted to the digital trunk 16B in an in-channel format and detected by the control device 11B, the control device 11B transmits the control signal to the digital trunk via the hour/minute switch 12B based on the control signal. ], 6
B is connected to the first terminal of the switchboard trunk 13, and its second terminal is connected to the vacant switchboard 14, and the relay board controller 5 is controlled to display a switchboard connection request.

As a result, the operator at the switchboard 14 verifies and checks the calling party's telephone number, and then
Perform the connection operation to 9.

The called side is first connected to the switching trunk 13 under the control of the control device 11B that receives the connection operation information.
A connection is made from the third terminal of the digital trunk 16B (different from the one for the calling side connection) '\P through the time division switch 12B.

Next, the required signal is transmitted in an in-channel manner to the central controller 11A via the opposing digital trunk 16B, and under the control thereof, the opposing digital trunk 16A is transmitted to the desired subscriber telephone 19 via the time division switch 12A. Connecting.

As above, the calling side of trunk 13 for switchboard.

When the connection of the called side is completed and the control from the switchboard 14 is completed,
It is possible to talk between two parties, and if necessary, it is also possible to make a three-party conversation including the operator.

Simultaneously with the above-mentioned operations, billing processing operations and other operations required for connection to the switchboard are performed under the control of the control ηj device 11B, and then the series of operations ends.

As described above, the automatic telephone exchange 10A side does not perform a -off switchboard connection operation, but simply operates as if the switchboard device 10B is a different station, and there is no need to transfer or process control information. .

Therefore, as a result of separating the switchboard connection function, the automatic telephone exchange 10A can reduce the scale and simplify its hardware and software, and in addition, it will not be affected at all when a new switchboard device is installed. Never. The above is the automatic room 1 story exchange 1 and 10
A's 1. ! This is possible regardless of the IN type or method.

Similarly, the switchboard device 10B is capable of interoperating with the automatic telephone exchange 10A even if it is physically installed separately, and by reducing the installation space by using the hour/minute switch 12B for connection to the switchboard, etc. The number of units replaced is a considerable number or more (
For example, if the number of units is 30 or more, it will be sufficiently economical.

Regarding the addition and expansion of switchboard service functions,
It can be dealt with only by the exchange table bag and 710B side, and has flexibility.

Note that by separating the two as described above, even if a failure occurs, it will not affect each other and its range will still be limited, so reliability can be improved.

〔Effect of the invention〕

As described above in detail, according to the present invention, economical and dual-functional axial continuity of the switchboard connection system can be achieved, making the telephone exchange 7 system economical and improving operability.

A remarkable effect on improving reliability can be obtained.

[Brief explanation of the drawing]

Figure 1 is a relay system diagram of an example of a conventional switchboard connection system.
FIG. 2 is a relay system diagram of one embodiment of the switchboard connection system according to the present invention. 10A... automatic telephone exchange, 10B... switchboard device, 11A... central control device, 11B... control device,
12A, 12B... Time division switch, 13... Switchboard trunk, 14... Switchboard, 15... Switchboard controller, 16, 16A, 1.6B... Digital trunk, 17... - Outgoing trunk, 18...Incoming trunk, 19...Subscriber telephone. Agent: Patent attorney Kosaku Fukuda (and one other person)

Claims (1)

[Claims] 1. A switchboard that performs switching connections for manual relay calls, international calls, reception/intra-system calls, and other calls that require operator intervention is housed in a dedicated time-division switch, and its control device is installed. A switchboard connection method in which calls between an automatic telephone exchange and the above-mentioned switchboard are exchanged via the above-mentioned time division switch via a tandem connection of in-channel digital trunks between them. .