JPS5829036B2 - Call route control method in automatic exchanges - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a communication path control system in an automatic exchange. Conventionally, in electronic exchanges, one central control circuit has controlled the entire system.

Therefore, this central control circuit had a large processing capacity and was multifunctional.

That is, 2. This central control circuit controls registers such as detecting, counting, and storing selection signals, controls trunks such as detecting incoming signals and recovery signals, and detects and detects key information from central office line relay boards.
Control of various signals such as control of central office line relay board such as storage, dial tone connection, extension line interconnection, central office line outgoing connection, central line incoming connection,
A single processor performs various connection controls such as leased line outgoing connection, leased line incoming connection, relay connection, automatic transfer connection, speed dial connection, and variable call forwarding connection.

For this reason, a processor with large processing capacity and multiple functions was required, and a processor dedicated to switching control had to be used.

In addition, processors with such large processing power and multi-functions have the drawbacks of being expensive and requiring a large amount of mounting space.

Furthermore, in order to increase the line capacity of the exchange, a new processor with even greater processing power had to be developed, and in order to change the functions, a very large amount of programs had to be changed. However, the system structure and program had to be changed depending on the line capacity and functions of the exchange.

In addition, when trying to cover a range of capacities from small to large with the same model, the processing capacity of the central control circuit must be designed to match the large capacity, and the price becomes very high for small capacity. Unfortunately, the sink could not be installed.

Therefore, a need has arisen for a distributed control system in which the central control circuit is composed of a plurality of processors.

However, in this case, a control circuit for controlling the communication path switch was provided for each processor, which resulted in a large number of devices for the communication path switch control circuit, which was expensive and required a large amount of mounting space. There were drawbacks.

The purpose of the present invention is to eliminate the above-mentioned drawbacks, and to create an optimal control system according to the conditions required for the exchange, using the same control method regardless of the line capacity or function of the exchange. The objective is to provide a control method that can

Another object of the present invention is to provide an inexpensive system for controlling an exchange with a large line capacity using an inexpensive general-purpose microprocessor.

In order to achieve these objects, the present invention provides means for controlling an information transfer path and a communication path switch for transferring information between a plurality of processors in a distributed control type automatic switching system in which a control circuit is configured by a plurality of processors. wherein the means for controlling the communication path switch is connected to an information transfer path for transferring information between the plurality of processors, and the means for controlling the communication path switch from one or more of the plurality of processors; The reason is that it is configured so that it can be controlled.

According to the present invention, it is possible to set up optimal conditions according to the conditions required of the exchange using the same control method regardless of the line capacity of the exchange and the various functions of the exchange.

That is, according to the present invention, small capacity (100 lines or less)
The same model can cover applications ranging from high capacity to large capacity (several hundred lines or more), and the same model can be used for a variety of applications such as private branch exchanges, Centrex exchanges, horse exchanges, data exchanges, etc. It will be done.

Since it is possible to configure the optimal thread according to the line capacity, the price of the central control circuit can be increased in proportion to the number of lines, and there is a control method that can cover everything from small to large capacity in terms of price. can get.

According to the present invention, both hardware and software can be shared from small to large capacities, the development period is shortened, and costs can be reduced due to the mass production effect due to the sharing of hardware.

In addition, by applying the control method of the present invention, a control method can be obtained that is easy to use, such as using an inexpensive general-purpose microprocessor as the central control circuit of an exchange.

Currently, there are many inexpensive microprocessors on the market, and it is important to make effective use of them in order to reduce the cost and simplify the control circuits of switching equipment.

However, current inexpensive general-purpose microprocessors have slow processing speeds, and one processor can handle 100 to 20 lines.
The processing capacity is only about 0 lines.

Therefore, we used multiple inexpensive general-purpose microprocessors,
The multiprocessor control system of the present invention provides sufficient processing power to control large-capacity exchanges.

That is, the present invention divides the functions of the control system of an automatic switching system into several blocks, and by deploying an inexpensive general-purpose microprocessor in correspondence with each block, the work that each processor must handle can be handled. The control system can be configured so that the processing power of an inexpensive general-purpose microprocessor is sufficient.

At this time, the number of devices in the switch control circuit can be reduced by providing a common circuit for controlling the communication path switch in the system, instead of providing a control circuit for controlling the communication path switch for each processor. It is cheaper in price and has the effect of reducing the mounting space.

Furthermore, by sharing the switch control circuits in this way, data transfer between the switch control circuits becomes unnecessary, the system becomes simple, and the flow of information within the system becomes simple.

Additionally, this can prevent system malfunctions.

This makes it possible to simplify the system failure handling method and maintenance processing method.

Hereinafter, the present invention will be described in detail with reference to the drawings.

In the figure, line circuits 211, 212°...21 are connected to the line side terminals of the switching network 51.
Extension telephones 111, 112..., 1 via n
1n, and the office line relay board control circuit 411,...
41n to the central office line relay stand 311.・・・・・・31n
are connected to the trunk side terminals of the switching network 51, and trunks 611, 612, . . . 61
n is connected.

Similarly, switching network 52.・・・・・・、
The 5m line side terminal is also connected to the extension telephone via the line circuit and the office line relay board is connected to the office line relay board control circuit via the line circuit, and the switching network 52゜......A trunk is also connected to the 5m track side terminal. is connected.

The switching network 51, the switching network 52, . . . , 5 m of switching networks are connected by a jumper 81 to form a switching network system.

Extension telephones 111, 112. ...11n; line circuits 211, 212. ...21n; Office line relay stand 311. ...31n; Office line relay board control circuit 4
11. ...41n; switching network 51; trunk 611.612.・・・・・・61n
A signal control processor 711 is provided to control the reception and transmission of various control signals related to the control.

Similarly, a signal control processor 21 is provided to control the reception and transmission of various control signals regarding the switching network 52 and devices connected to the line side terminals and trunk side terminals of the switching network 52.

Similarly, a signal control processor 7ml is provided to control the reception and transmission of various control signals regarding the switching network 5m and devices connected to the line side terminals and trunk side terminals of the switching network 5m.

Signal control processor 711.721... 7m
1 is functionally composed of several blocks, namely, a central office relay control block, a line control block, a connection state memory control block, a trunk control block, and a connection control processor interface block.

The signal control processor 711 is the station line relay control block 7
12, line control block 713, connection state memory control block 714, trunk control block 715. It consists of a connection control processor interface block 716.

Signal control processor T21. . . . , 7m1 are also station line relay board control blocks 722, . . . 7, respectively.
m2. Line control block 723°...7m3
;Connection status memory control block 724゜...
7m4 trunk control block 725.・・・・・・7m
5; Connection control processor interface block 72
6.・・・・・・It is composed of 7m6.

Signal control processors 711, 721.・・・・・・7m
l detects control signals arriving from external equipment to the line side terminals and trunk side terminals of the switching network corresponding to each signal control processor, line circuits connected to the trunk side terminals, central office line relay board control circuits, trunks, etc. It has the function of controlling the control and line circuits, the station line relay board control circuit, the sending of control signals from trunks, etc. to external equipment, the function of controlling the connection state memory, and the function of interfacing with the connection control processor.

The office line relay board control block detects and stores the telephone key information sent from the layer relay board, controls the lamps and buzzers of the office line relay board, and analyzes the telephone key information.

The line control block detects calling information sent from the extension telephone, controls calls to the extension telephone, and detects response information sent from the extension telephone.

The connection state memory control block controls the connection state memory that stores the connection state of the communication path.

The trunk control block detects, counts and controls the accumulation of selection signals sent from the extension telephone, detects hooking signals sent from the extension telephone, detects recovery signals sent from the extension telephone, detects incoming signals sent from the player, and controls the play Detection of the connection confirmation signal sent from the player, detection of the response signal sent from the player, detection of the recovery signal sent from the player, control of detection, counting, and accumulation of the selection signal sent from the player, and control of sending the activation signal to the player. control, control of sending selection signals to the opposing station, controlling sending of connection confirmation signals sent from the playing station, controlling sending of response signals to the playing station, controlling sending of recovery signals to the playing station, control of sending of selection signals sent from the extension telephone/playing station. pretrans 1
/-John, etc.

The connection control processor interface block determines activation conditions for the connection control processor and controls transfer of control information to and from the connection control processor.

In addition, connection control processors 911, 921 .・・・・・・
・9PL is activated by issuing a startup request m from the signal control processor, and performs dial tone connection, extension line interconnection, central office line outgoing connection, central office line incoming connection, leased line outgoing connection, leased line incoming connection, relay connection, automatic It is a processor that performs various types of connection control such as transfer connection, speed dial connection, variable absence transfer connection, etc., and is composed of a signal control processor interface block and a connection control block.

The signal control processor interface block determines whether the signal control processor has made a startup request to the connected control processor, and if it has started, accepts the startup request, and controls the signal control processor to identify the startup request type. Performs control information transfer control, etc.

The connection control block handles various types of connections such as dial tone connection, internal line interconnection, central line outgoing connection, central line incoming connection, leased line outgoing connection, leased line incoming connection, relay connection, automatic forwarding connection, speed dial connection, variable call forwarding connection, etc. connection control.

Such signal control processors 711, 721 .・・・・・・
・, 7m1 and connection control processor 911, 921°...
..., 9p1 are connected by a bus 82, that is, a control information transfer lead, or there is no fixed correspondence with the signal control processor.

The signal control processor supports various equipment groups such as line side terminals of switching networks, extension telephone line circuits connected to trunk side terminals, central office line relay boards, central office line relay board control circuits, trunks, and switching networks. It is provided.

The signal control processor 711 processes extension telephones 111112, . . . which are connected to the switching network 51, and the number of devices connected to the line side terminals and trunk side terminals of the switching network and the number of devices connected to the switching network. ...
11n; line circuit 211, 212...21n
; Office line relay stand 311. ...31n; Office line relay board control circuit 411. ...41n: Trunk 61
'i, 612. . . . 61n; Only processing related to the switching network 51 is performed.

The signal control processor 712 connects the extension telephones 121, 122, . . . connected to the switching network 52.
...12n; line circuit 221.222.・・・・・・
・.

22n; Office line relay stand 321. ......, 32n; Office line relay stand! + Leg open circuit 21. ......, 42n Nidrank 621.622. . . . , 62n: Performs only processing related to the switching network 52.

Similarly, the signal control processor 7ml is connected to the switching network 5m, and the extension telephone 1ml, 1m2
,...imn; line circuit 2m12m2,...
...2m; Office line relay stand 3m1, ...3m
n, station line relay board control circuit 4m1,...4mn;
Trunk 6m 1.6m2, . . . , 5 m n Performs only processing related to switch network 5m.

That is, in the signal control processor, a group of devices processed by each signal control processor is fixed in terms of hardware.

There is no fixed correspondence between the connection control processor and the switching network and the devices connected to the switching network.
Control information can be transferred to the signal control processor 711 via the signal control processor 711, control information can be transferred to the signal control processor 721, and control information can be similarly transferred to the signal control processor 7ml.

Similarly, connection control processor 921. ...9p
l also all signal control processors 711, 721,...
...7ml! 1 JIill information can be rolled.

Connection control processors 911, 921. ...9p
1 have the same processing ability and function, and the number of connection control processors is determined according to the call volume of activation requests from the signal control processors to the connection control processors.

A data memory 101 is a memory for storing system-necessary information such as number group information and translator information, and is composed of a memory control block 102 and a memory block 103.

Data memory 101 includes all connection control processors 91
Information can be transferred between the terminals 1, 92L, . . . and 9p1, respectively.

Connection control processors 911, 921. ...9p
1 and the data memory 101 are connected by a bus 83, that is, an information transfer lead.

The switch control circuit 105 is a circuit for controlling communication path switches, and is connected to connection control processors 911, 912, . . .
- Connected to 9pl by bus 83, switching network 5L52. .......

5m and is connected by a switch control line 107.

The switch control circuit 104 includes a connection control processor interface block 105 and a switch control block 106.
The connection control processor interface block 105 consists of connection charges 47' processors 911, 921...
..., 9p1, and the switch control block 106 controls the communication path switch, the communication path switch memory, etc.

If the switch control block 106 determines that it is necessary to control the switching network as a result of the processing, the switch control block 106 controls the switch?
A switch control command is sent through the fi1 leg 106.

Next, the connection control operation in the case of extension mutual calling connection will be explained.

The extension telephone 111 is the extension telephone 111-line circuit 21.
When the extension telephone 111 dials while connected to the calling register trunk 611 via the route 1-switching network 51-calling register trunk 611,
The dialed number information is sent to the calling register trunk 6.
It is received at 11.

The number information received by the transmission register trunk 611 is detected and stored in the trunk control block 715 of the signal control processor 711.
is stored in the number information storage memory.

The trunk system block 715 detects the number information sent from the extension telephone 111 to perform a pre-translation operation that identifies the first digit of this stored number information and determines the number of digits that need to be received. - When the reception of the required number of digits accumulated and determined by the pre-translation operation is completed, and the trunk control block 715 identifies that the reception has been completed, the connection control process z2' issues an extension mutual paging connection activation request. Connect the activation request signal to the control processor interface female block 716
The connection control processor activation flag is stored in the internal memory.

Now, assuming that the connection*1tii processor 91.1 is not executing connection control but is detecting an activation request from the signal control processor, the signal control processor interface block 912 is connected to the connection control processor interface block 716, 726. . . . , the connection control processor activation flag of 7m6, No. 7j is scanned one after another (a activation request is detected from the signal control processor 711).

The activated signal control processor interface block 912 recognizes that number information has been received by the trunk control block 715 of the signal control processor 711, but it is necessary to identify what type of call the number information relates to. be.

To identify the activated call type, the signal control processor interface block 912 sends the first numeric information of the received number information to the memory control block 102 of the data memory 101 through the bus 83.

The memory control block 102 reads call type information corresponding to the received number information from the translator information in the memory block 103 and stores the call type information in the memory control block 102.

This call type information is stored in the memory control block 102.

This call type information is sent from the memory control block 101 to the signal control processor interface block 912 of the connection control processor 911 via the bus 83.

Having received this information, the signal control processor interface block 912 sends an activation signal to the connection control block 913 to start the extension mutual call connection control corresponding to this call type information, that is, the extension mutual call connection information. .

When the extension mutual call connection control is started, first, an instruction to send accommodation position information of the calling extension telephone 111 in the switching network 51 is sent to the signal control processor interface block 912. Bus 82 passes through connection control processor interface block 16 to switch control block 714 .

Upon receiving this instruction, the switch control block 714 identifies the accommodation location information of the calling extension telephone 111 from the connection state memory of the switch control block 714, and transfers this identified accommodation location information to the connection control interface block 716.
, bus 82, signal control processor interface block 912 to connection control block 913, and is stored in connection control block 913.

An instruction to send the number information of the called extension is then sent to the trunk control block 715 through the signal control processor interface block, bus 82, and connection control processor interface block.

Upon receiving this instruction, the trunk control block 715 selects the connection control processor interface block 116 from the number information storage memory of the trunk control block 715 and the bus 8.
2. Signal control processor interface block 91
2 to the connection control block 913 of the connection control processor 911 and stored in the connection control block 913.

The connection control block 913 transfers the number information of the called extension stored in the connection control block 913 to the signal control processor interface block 912 in order to identify the accommodation location information of the called extension on the line side of the switching network. , to the memory control block 102 of the data memory 101 through the bus 83.

The memory control block 102 reads line-side accommodation position information of the switching network corresponding to the received instrument number information from the number group information of the memory block 103, and stores the accommodation position information in the memory control block 102.

Now, assuming that the called extension telephone 112 has been identified, the storage position information of the extension telephone 112 on the line side of the switching network 52 is stored in the memory control block 102.

This accommodation position information is stored in the memory control block 102.
through path 83 signal control processor interface block 912 to connection control block 913;
It is stored in the connection control block 913.

Connection control block 913 then uses extension 1 stored in line control block 713 of signal control processor 711 to identify all busy states of extension 112.
An instruction to send all twelve busy information is sent to line control block 713 through signal control processor interface block 912, bus 82, and connection control processor interface block 716.

Upon receiving this instruction, the line control block 713 sends all busy information of the internal telephone set 112 to the connection control block 913 through the connection control processor interface block 716, the bus 82, and the signal control processor interface block 912.

When the connection control block 913 that has received this information identifies that the extension telephone 121 on the called side is in an idle state, it then moves to an extension mutual trunk selection operation.

The connecting side leg block 913 sends an instruction to the signal control processor interface to send trunk type information and all-busy information stored in the trunk control block 715 of the signal control processor 711 in order to select an empty extension mutual trunk. through the face block 912 , bus 82 , and connection control processor interface block 716 to trunk control block 715 .

Upon receiving this instruction, the trunk control block 715 sends the trunk type information and all busy information to the connection control block 913 through the connection control processor interface block 716, the bus 82, and the signal control processor interface block 912.

Based on the trunk type information and all-busy information, the connection control block 913 selects an empty extension mutual trunk, and connects the storage position information of the trunk on the trunk side of the switching network 51 to the connection control block 913.
memorize it internally.

Now, assuming that the trunk 612 is a vacant extension trunk, the accommodation position information of the trunk 612 in the switching network 51 is stored in the connection control block 913.

Since it is assumed that the trunk 612 is a mutual extension trunk, it is assumed that the output side of the trunk 612 is turned back and connected to the trunk side of the switching network 51, although not shown.

Next, the calling side extension telephone 111 and the extension mutual trunk 612
The connection state memory control block of the signal control processor 711 selects an empty channel connecting between one terminal of the called extension telephone 112 and the other terminal of the extension trunk 612. Tsuku 714
An instruction to send all stored link busy information is sent to connection state memory control block 714 through signal control processor interface block 912, bus 82, and connection control processor interface block 716.

The connection state memory control block 714 receiving this instruction sends all the link busy information to the connection control block 913 through the connection control processor interface block 716, the bus 82, and the signal control processor interface block 912.

Connection control block 91 based on all busy information of this link
3, the links are matched and an empty channel is connected between the calling side extension telephone 111 and one terminal of the extension mutual trunk 612, and an empty channel is connected between the called side extension telephone 112 and the other terminal of the extension mutual trunk 612. Select an empty channel.

The calling side extension telephone 111, the called side extension telephone 112, and the mutual extension trunk 6 identified by the above connection control operation
The accommodation position information of the two terminals of 12 in the switching network 51 and the channel information of the switching network 51 connecting therebetween are provided by the connection control block 9.
It is stored in 13.

These calling side extension telephones 111 and mutual extension trunks 6
Accommodation position information in the 12 switching networks 51 and the switching network 5 connecting between them
1 channel information, communication path switch closing instruction, and called
Accommodation position information in the switching network 51 of the full extension telephone 112 and mutual extension trunk 612, channel information of the switching network 51 connecting between them, call path switch closing instructions, and switching network of the calling side extension telephone 111 and the calling register trunk 611 A control block 913 connects accommodation position information in 51, channel information of the switching network 51 connecting therebetween, and a call path switch release instruction.
from the signal control processor interface block 91
2, bus 83 and connection control processor interface block 105 to switch control block 106.

The switch control block 106 closes the communication path switch of the switching network 51 based on this instruction, and connects the calling side extension telephone 111 - line circuit 211 - switching network 51 - mutual extension trunk 612 - switching network 51 - line circuit 212 - The communication path between the called side extension telephone 112 is connected, and at the same time, the communication path between the calling side extension telephone 111, the line circuit 211, the switching network 51, and the calling register trunk 611 is disconnected.

However, at this point, the communication path is disconnected within the line circuit 212 on the called side.

Next, in order to send a paging signal to the called extension telephone 112, the connection control block 913 transmits accommodation position information in the switching network 51 of the line circuit 212 corresponding to the called extension telephone 112 and a paging signal sending instruction to the signal control processor. Interface block 912, bus 8
2. Connection control processor interface block 71
6 to the rice control block 713.

Upon receiving this information, the line control block 714 operates a relay in the line circuit 212 to send a ringing signal to the called extension telephone 112.

In addition, in order to send a ring tone to the calling side extension telephone 111, the connection control block 913 transmits accommodation position information of the mutual extension trunk 612 in the switching network 51 and a ring tone sending instruction to the signal control processor interface block 912, the bus 82, and the connection control block 913. to the trunk control block 715 through the control processor interface block 716.

Upon receiving this information, the trunk control block 715 operates a relay within the mutual extension trunk 612 in order to send out a ringing tone.

Here, from the extension mutual trunk 612 to the calling side extension telephone 111 - the extension mutual trunk 612 - the switching network 51 - the line circuit 211, the calling side extension telephone 11
A ringing tone is sent to the calling side extension telephone 111 through route 1, and a ringing signal is sent from the line circuit 212 to the called side extension telephone 112.

At this time, within the line circuit 212, the calling side extension telephone 111
The communication route to has been cut off.

Calling side extension telephone line 1 in switching network
11 accommodation position information, accommodation position information of one terminal of the extension mutual trunk 612, channel information between the calling side extension telephone 111 and one terminal of the extension mutual trunk 612, accommodation position information of the called side extension telephone 112, The connection state memory of the connection state memory control block 714 stores the connection state of the switching network 51 including accommodation position information of the other terminal of the mutual extension trunk 612 and channel information between the called side extension telephone 112 and the other terminal of the mutual extension trunk. In order to store this information and the connection status memory write instruction in the connection control block 913, the signal control processor interface block 912, the bus 82, and the connection f
f11111M] through the processor interface block 716 to the connection state memory control block 714 and storing these information in the connection state memory of the connection state memory control block 714.

After that, the connection control block 913 sends a recovery signal to the connection control processor interface block 716 through the signal control processor intern eighth block 912 and the bus 82, and the connection control processor 911 recovers.
Completes the extension mutual call connection control operation.

In the above connection control operation, if the switching network 51 does not accommodate any mutual extension trunks, or if it accommodates mutual extension trunks but none are empty, or if there are mutual extension trunks that are empty, If there is no empty channel, a switching network 52. ...
. . . performs an operation of selecting an empty extension mutual trunk accommodated in 5 m.

Since the track selection operation, channel selection operation, communication path switch control operation, etc. in such a case are not directly related to the gist of the present invention, their explanation will be omitted here.

The connection control operations related to the extension mutual calling connection control operations have been described above, but the other operations include dial tone connection control operations, extension mutual response connection control operations, central office line origination connection control operations, leased line origination connection control operations, and speed dial connection control. Similar connection control operations are performed for other types of connection control, such as operation and variable missed transfer connection control operations.

Since the present invention has been described in detail above with the detailed explanation of the connection control operation of the extension mutual call connection control operation, the explanation of other connection control operations will be omitted.

As explained above, according to the present invention, it is possible to create an optimal system according to the conditions required of the exchange using the same control method regardless of the line capacity of the exchange or the various functions of the exchange. can.

In other words, according to the present invention, the same model can cover from small capacity (100 lines or less) to large capacity (several hundred lines or more), and can be used for various purposes such as private branch exchange, Centrex exchange, central office exchange, data exchange, etc. However, a control system that can be covered by the same model can be obtained.

Since it is possible to configure an optimal system according to the line capacity, the price of the central control circuit can be increased in proportion to the number of lines, and there is a control method that can cover everything from small capacity to large capacity in terms of price. can get.

According to the present invention, it becomes possible to share hardware and software from small to large capacities, shorten development time, and reduce costs due to the mass production effect achieved by sharing hardware.

Further, according to the control method of the present invention, a control method can be obtained in which an inexpensive general-purpose microprocessor can be easily introduced into the central control circuit of the exchange.

Currently, there are many inexpensive microprocessors on the market, and it is important to make effective use of them in order to reduce the cost and simplify the control circuits of switching equipment.

However, current inexpensive general-purpose microprocessors have slow processing speeds, and one processor can handle 100 to 20 lines.
The processing capacity is only about 0 lines.

Therefore, if a plurality of inexpensive general-purpose microprocessors are used and the multiprocessor control method of the present invention is adopted, processing power sufficient to control a large-capacity exchange can be obtained.

That is, the present invention divides the functions of the control system of an automatic switching system into several blocks and deploys a corresponding inexpensive general-purpose microprocessor for each block, thereby reducing the work that each processor must process. Therefore, the control system can be configured to be sufficiently satisfactory even with the processing power of an inexpensive general-purpose microprocessor.

At this time, instead of providing a corresponding control circuit for controlling the call path switch for each of the plurality of processors constituting the central control circuit, switch control is achieved by providing a common circuit for controlling the call path switch in the system. This has the effect of reducing the number of circuit devices, lowering the price, and reducing the mounting space.

Furthermore, by sharing the switch control circuits in this way, data transfer between the switch control circuits becomes unnecessary, the system becomes simple, and the flow of information transfer within the system becomes simple.

This also prevents the system from operating.

As a result, the failure handling method and maintenance processing method of the system can be simplified, and the overall system configuration can be simplified.

In the embodiment of the present invention, the control range of all signal control processors includes an extension telephone, a line circuit, a central office line relay stand,
We have described a method that includes control functions for the central office line relay board control circuit and trunk, but the control range of each signal control processor includes extension telephones, line circuits, central office line relay board, central office line relay board control circuit, and trunk equipment. It is clear that a single type of equipment or any combination of multiple types of equipment may be included, and the number of each type of equipment is also arbitrary.

In the detailed explanation of the present invention, the line control block, station line relay control block, and connection status memory control block are all housed within the signal control processor. It is clear that the control block, trunk control block connection state memory control block may each be contained within a signal control processor or may be provided with an independent processor.

Furthermore, in the embodiments of the present invention, the processing capabilities and functions of the plurality of connection control processors are all the same, but the processing capabilities may be different but the functions may be the same, or the processing capabilities may be the same but the functions may be different. It is clear that the processing power functions may also be different.

Further, in the embodiment of the present invention, the bus between the signal control processor and the connection control processor and the bus between the connection control processor and the data memory are different buses, but it is clear that they may be the same bus.

In short, it is clear that the buses between the signal control processor and the connection control processor, between the connection control processor and the data memory, and between the connection control processor and the switch control circuit may be the same or different.

Further, in the embodiment of the present invention, it has been described that the number of received digits of the extension interconnection number information can be determined by identifying the first digit of the number information, but such a numbering plan is only an example. It is clear that any numbering plan is irrelevant to the subject matter of the present invention.

In the diagrams illustrating the embodiments of the present invention, the types of trunks such as calling register trunks, extension trunks, central office line trunks, private line trunks, and other special trunks are not shown, but are generally shown.

The control system method of the present invention may be a wired logic method or a street program method, and electronic components such as integrated circuits and semiconductors may be used as parts constituting the control system circuit, and electromagnetic components such as relays may be used. May be used.

The communication system of the present invention may be a space-division system or a time-division system, and the parts constituting the communication path circuit include current holding type switches, magnetic holding type switches, mechanical holding type switches, relays, electronic switches, and integrated circuits.・Electronic components such as semiconductors may be used.

In the embodiment of the present invention, the line circuit performs the sending of a ringing signal to the extension telephone, the detection of the response from the extension telephone, etc., and this control is performed by the line control block of the signal control processor. It is clear that the trunk may be used to send out a ringing signal to a telephone, detect the response of an extension telephone, etc., and this control may be performed by the trunk control block of the signal control processor.

Furthermore, in the embodiment of the present invention, the ringing tone for the extension telephone is transmitted by the trunk, and this control is performed by the trunk control block of the signal control processor. It is clear that the transmission can also take place in a line circuit and the control in a line control block of the signal control processor.

The configuration of the communication path system is merely an example described in the embodiment of the present invention, and it is clear that other configurations of the communication path system do not affect the gist of the present invention.

It is clear that changes in the way the path switch memory is arranged will not affect the spirit of the invention.

Furthermore, although the switch control circuit has been described as only controlling the switches, it is also a feature of the present invention that the switch control circuit not only controls the switches but also controls the connection state memory, switch memory, etc. It is also clear that it is included in the main idea.

[Brief explanation of the drawing]

The figure is a block configuration diagram illustrating one embodiment of the present invention. In the figure,

Claims (1)

[Claims] 1. A signal control processor having a control means for detecting a control signal coming from an external device to a device connected to a communication path network, and a control means for sending a control signal from the device connected to the communication path network to an external device. are provided corresponding to a group of devices connected to the predetermined communication path, and one or more connection control processors are provided for selective connection control of the communication path network depending on the amount of calls applied to the connection control processor. a multiprocessor-controlled automatic telephone exchange I for controlling a switching system by further comprising the signal control processor, the connection control processor, and means for transferring information between these processors; A common control means for controlling opening/closing is connected to the information transfer path and the communication path network to form a standalone device, and means for storing air blockage information of the communication path network is provided in the signal side processor, 1. A communication path control system in an automatic switching system, characterized in that said common control means controls opening and closing of said communication path switch based on instructions from said connection control processor based on traffic information.