JPS5832837B2 - Multiprocessor control method for automatic switching equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a central control system in automatic exchanges, and more particularly to a multiprocessor control system with a plurality of central control circuits.

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.

In other words, this central control circuit uses a single processor to control registers such as detection, counting, and accumulation of selection signals, trunk control such as incoming signal detection and recovery signal detection, and detection and accumulation of key information from central office line relay boards. Control of various signals such as control of central office line relay boards, dial tone connection, internal line interconnection, central office line outgoing connection, central line incoming connection, leased line outgoing connection, leased line incoming connection, relay connection, automatic transfer connection , speed dial connection, variable call forwarding connection, and various other connection controls.

For this reason, a processor with large processing power and multiple functions is required, so I replaced it! I had no choice but to use a dedicated processor for 11i1.

Additionally, 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 switching equipment, 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 configuration and block diagram 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, which results in very high prices for small capacity models. I couldn't warm up.

The first object of the present invention is to solve the above-mentioned drawbacks (1), and to solve the above-mentioned drawbacks by always using the same control method regardless of the line capacity of the exchange or the number of functions. The purpose of this invention is to provide a control system that can be used as a system.

Another object of the present invention is to provide a 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 a control means for detecting control signals arriving from external devices to a plurality of types of devices connected to the communication network; A signal having control means for sending control signals from the device to the external device, respectively! A plurality of IJ# processors are provided corresponding to a predetermined group of devices connected to the communication network, and a connection control processor for controlling connection of the communication path network is configured to respond to the call volume of activation requests from the signal control processor. Accordingly, a plurality of processors are provided, and further provided are means for transferring information between the signal control processor and the connection control processor, and means for transferring information between the signal control processor, the connection control processor, and these processors. The switching system is characterized in that any of the connection control processors in an idle state detects a startup request from the signal control processor, identifies the type of the startup request, and controls the switching system.

According to the present invention, it is possible to construct an optimum system according to the conditions required of the exchange by always using the same control method for the large and small 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)
This provides a control method that allows the same model to cover a wide range of applications from large capacity to large capacity (several hundred lines or more), as well as for multiple uses such as private branch exchanges, Centrex exchanges, horse exchanges, data exchanges, etc. .

Therefore, since it is possible to configure an optimal system according to line capacity, the price of the central control circuit can increase in proportion to the number of lines, and in terms of price, it is a control method that can cover from small capacity to large capacity. is obtained.

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.

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, we used multiple inexpensive general-purpose microprocessors,
Inventive multiprocessor? If the LI single-leg system is used, sufficient processing power can be obtained to control a large-capacity exchange.

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

This will be explained below with reference to the drawings.

A first embodiment of the invention is shown in FIG.

In FIG. 1, the line side terminals of the switching network 51 include line circuits 211, 212 .・・・・・・
.

21n via extension telephone 11L112.・・・・・・
.

11n, and the station line relay stand control circuit 411.・・・・・・
.

41n to the central office line relay stand 311.・・・・・・31
Trunks 61L612.n are connected to the trunk side terminals of the switching network 51.・・・・・・、
61n 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 via the office line relay board control circuit, and the switching network 52. ......, 5m
A trunk is also connected to the trunk side terminal of.

Switching network 51, switching network 52. ..., switching network 5
m are connected by a jumper 81 to form a switching network system.

Extension telephone 111.112. ......, 11n, line circuit 21L212. ......, 21n; Office line relay board 311, ..., 31n, Office line relay board control circuit 411..., 41n: Switching net two? 51 Nidrank 61L612.・・・・・・61n
A signal control processor 11 is provided for reprinting the reception and transmission of various control signals related to the printing.

Similarly, a signal control processor 721 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 terminal and trunk side terminal of the switching network 5m.

Signal control processor 711゜721,...,7
m1 is functionally composed of several blocks, namely, a central office line relay control block, a line control block, a switch control block, a trunk control block, and a connection control processor interface block.

The signal control processor 711 is the central line relay block 7
12, a line control block 713, a switch control block 714, a trunk control block 715, and a connection control processor interface block 716.

Signal control processor 721. . . . , 7m1 is also a station line relay board control block 722, . . .
7m2 line control block 723,...°, 7
m3; switch control block 724, ..., 7
m4;) rank control block 725,...
, 7m5; connection control processor interface block 726. It is composed of 7m5.

Signal control processor 711゜721,...,7
m1 is the line side terminal of the switching network corresponding to each signal control processor, the line circuit connected to the trunk side terminal, the central office line relay board control circuit,
Control and line circuits that detect control signals arriving from external devices to trunks, etc., station line relay board control circuits, and ff? from trunks, etc. to external devices. It has a function of controlling the sending of IN signals, a function of controlling switches of a switching network, and an interface function with a connection control processor.

The office line relay board control block detects and stores the telephone key information sent from the office line 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 sending of a calling signal to the extension telephone, detects response information sent from the extension telephone, and so on.

The switch control block controls the communication path switch, the communication path switch memory, the connection state memory, etc.

The trunk control block detects, counts, and accumulates the selection signal sent from the extension phone.Detects the hooking signal sent from the extension phone.Detects the recovery signal sent from the extension phone.Detects the incoming signal sent from the player. Detection of the connection confirmation signal sent, 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 selection signals sent from the player, control of sending of activation signals to the player. , control of sending selection signal Q to the opposing station, controlling sending of a connection confirmation signal sent from the playing station, controlling sending of a response signal to the playing station, controlling sending of a recovery signal to the playing station, presetting of the selection signal sent from the extension telephone/playing station. Translation, etc.

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

Next, connection control processors 911, 921.・・・・・・
.

9P1 is activated by detecting an activation request from the signal control processor, and performs dial tone connection, extension interconnection, central office line originating connection, central office line incoming connection, leased line originating connection, leased line incoming connection, relay connection, and automatic transfer. It is a processor that performs various types of connection control such as abbreviated dial connection and variable absentee transfer connection, and is composed of a signal control processor interface block and a connection control block.

The signal control processor intern eighth block determines whether the signal control processor has issued a startup request to the connected control processor, and if it has started, accepts the startup request, performs control to identify the startup request type, and performs signal control. Controls the transfer of control information to and from the processor.

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.

Signal control processors 711, 72L...

7ml and connection control processors 911, 921.・・・・・・
..., 9p1 are connected by a bus 82, that is, a control information transfer lead.

There is no fixed correspondence between the signal control processor and the connection control processor.

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

The devices connected to the line side terminals and trunk side terminals of the switching network and the number of devices in the switching network that are processed by the signal control processor are determined by the m capacity of the signal control processor.

The signal control processor 711 connects extension telephones 11L112 . ...
....

11n; line circuits 211, 212. .......

21n; Office line relay stand 311. ..., 31n; station line relay board control circuit 411. ......, 41n; Trunk 611.612. . . . , 51n; Only processing related to the switching network 51 is performed.

The signal control processor 721 connects extension telephones 121, 122, . . . connected to the switching network 52.
..., 12n Niline circuit 221゜222, ...
..., 22n; central line relay stand 321. .......

32n; Office line relay board control circuit 421. .......

42n;) Rank 62L622. ......62n
; Only processing related to the switching network 52 is performed.

Similarly, the signal control processor 7ml connects the extension telephones 1ml, 1 connected to the switching network 5m.
m2,..., 11TI n p line circuit 2
m1, 2m2. ......, 2mn 1 station line relay stand 3
m1.・・・・・・23 rnn to station line relay board control circuit 4ml boo °°, 4mn: ) rank 6ml, 6
m2゜...56 rn ns Performs only processing related to the switching network 5m.

That is, each device group to be processed by the signal control processor is fixed in terms of hardware.

On the other hand, the connection control processor does not have a fixed correspondence with the switching network and the devices connected to the switching network, but can be associated with all signal control processors, that is, can transfer control information.

In other words, connect! ! The leg processor 911 can transfer control information to the signal control processor 711 via the bus 82, can transfer control information to the signal control processor 721, and can similarly transfer control information to the signal control processor 7mI.

Similarly, the connection control processor 921゜..., 9
p1 also has all signal control processors 711, 721, .
..., control information can be transferred with 7m1.

Connection control processor 91L921. .......

All of the 9p1 have the same processing ability and function, and the number of connection control processors is determined according to the call volume of activation requests to the connection control processors from the signal control processors.

A data memory 101 is a memory for storing system-required 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 L92L and 9p1.

Connection control processor 91L92L...

9pl and data memo January 01 are connected by a bus 83, that is, an information transfer lead.

Next, the control operation in the case of dial tone connection will be explained.

When extension telephone 111 makes a call, call information is sent to line circuit 211 .

Line block 713 of signal control processor 711
The system constantly scans to see if there is a line circuit that is in a calling state, and if there is a line circuit that is in a calling state, it detects it and connects that line at the line side terminal of the switching network. The circuit accommodation position information is stored in the memory within the line control block.

When the extension telephone 111 makes a call, the line control block 713 of the signal control processor 711 scans to detect the line circuit 211 that is in the calling state, and places the line circuit 211 at the line side terminal of the switching network 51. The position information is stored in memory within the line control block 713.

The line control block 713 that detected the call sends a dial tone connection activation request signal to the connection Tj+leg processor interface block 716, and sends the dial tone connection activation request signal to the connection control processor activation plug memory in the connection control processor interface block 716. Remember.

On the other hand, the signal control processor interface block in the connection control processor that is not executing connection control in response to an activation request from the signal control processor detects whether there is an activation request from the signal control processor.

This detection is a signal f! ! This is done by checking whether a startup plug has been written to the connection control processor startup plug memory in the connection f6+ leg processor interface block of the Jtl processor.

Assuming that the connection wall processor 911 is not currently 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 blocks 716, 726, . .......

The connection control processor activation plug memory of 7m6 is scanned one after another, and a beep connection activation request from the signal control processor 711 is detected.

Connection control processor interface block 715
.

726.・・・・・・The 7m6 connection control processor activation request plug memory contains a dial tone connection activation request signal, an extension interconnection activation request signal, a central office line outgoing connection activation request signal, a local line incoming connection activation request signal, and a dedicated line. Activation request plug for connection control processor such as outgoing connection activation request signal, leased line incoming connection activation request signal, relay connection activation request signal, automatic transfer connection activation request signal, speed dial connection activation request signal, variable absent transfer connection activation request signal, etc. remember.

When the connection control processor detects an activation request from the signal control processor, the transfer of control information occurs over bus 82.

When the signal control processor interface block 912 of the connection control processor 911 that has received the connection activation request from the signal control processor identifies that the activation request type is a tone connection, it sends a connection control block 913 to start tone connection control. Sends a start signal to

When dial tone connection control is started, the connection control block 913 first instructs the signal control processor interface block 91 to send accommodation position information on the line side of the switching network 51 of the extension telephone 111 that has made the call.
2, bus 82 to line control block 713 through connection control processor interface block 716.

Receiving this instruction, the line control block 713 sends the accommodation location information of the calling extension telephone 111 to the connection control block 913 of the connection control processor 911 through the connection control processor interface block 716, the bus 82, and the signal control processor interface block 912.

The connection control block 913 instructs the signal control processor interface block 912 to send the 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 calling register trunk. bus 82 to trunk control block 715 through connection control processor interface block 716.

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 originating register trunk, and transmits the accommodation position information on the trunk side of the switching network 51 to the connection control block 913.
Store within 3.

Now, assuming that the trunk 611 is an empty originating register trunk, the accommodation position information of the trunk 611 in the switching network 51 indicates that the trunk 611 is connected! ! stored in Jll block 913.

Next, the connection control block 913 connects the extension telephone 11 that made the call.
Signal control processor interface block 912 sends instructions to send all link busy information stored in switch control block 714 of signal control processor 711 to select an empty channel connecting between signal control processor 711 and outgoing register trunk 611. 82, to the switch control block 714 through the connection IJII processor interface block 716.

Upon receiving this instruction, the switch control block 714 transmits all the link busy information to the connection control block 91 through the connection control processor interface block 716, the bus 82, and the signal control processor interface block 912.
Send to 3.

Connection control block 91 based on all busy information of this link
Step 3 performs link matching and selects an empty channel that connects the calling extension telephone 111 and the calling register trunk 611.

Calling extension telephone 1 identified by the above connection control operation
11. Accommodation position information of the outgoing register trunk 611 in the switching network 51 and channel information of the switching network 510 connecting therebetween are stored in the connection control block 913.

These calling extension telephones 111. The accommodation position information of the outgoing register trunk 611 in the switching network 51, the channel information of the switching network 510 connecting therebetween, and the communication path switch closing instruction are provided by the connection control block 913, which controls the signals of the processor interface block 912, the bus 82, and the connection control block 913. It is sent to the switch control block 714 through the processor interface block 716.

Switch control block 714 closes the switching network 510 call path switch based on this instruction;
A communication path between the calling extension telephone 111, the line circuit 211, the switching network 51, and the calling register trunk 611 is completed, and the calling extension telephone 1 is routed through this route.
11, a dial tone is sent from the calling register trunk 611.

Calling extension telephone 11 in the switching network
In order to store the connection state of the switching network 51 including the storage location information of the transmission register trunk 611, the storage location information of the transmission register trunk 611, and channel information in the connection state memory of the switch control block 714, these information and connection state memory write instructions are sent. Connect control block 913 to signal control processor interface block 912, bus 82
, connection control processor interface block 716
to the switch control block 714 through the switch control block 714.

The switch control block 714 that receives this instruction stores this information in the connection state memory.

After that, the connection control block 913 sends a recovery signal to the connection control processor interface block 716 through the signal control processor interface block 912 and the bus 82, and the connection control processor 911 recovers.
Complete the tone connection control operation.

In the above connection control operation, if the switching network 51 does not accommodate a calling register trunk, or if it accommodates a calling register trunk but there is no empty calling register trunk, or if there is an empty calling register trunk. If there is no empty channel, etc., an empty calling register trunk is accommodated in a switching network 52゜..., 5m different from the switching network 51 that accommodates the calling extension telephone 111. An operation for selecting is performed.

For example, if the originating register trunk accommodated in the switching network 51 is in full use and the trunk 621 accommodated in the switching network 52 is an empty originating register trunk, an operation similar to the trunk selection operation described above is performed. The connection control block 913 selects an empty originating register trunk accommodated in the switching network 52 and stores the accommodation position information on the trunk side of the switching network 52 in the connection control block 913.

The connection control block then uses the full link busy information stored in the switch control block 714 of the signal control processor 711 to select an empty channel to connect between the calling extension telephone 111 and the calling register trunk 621. A signal is sent to the switch control block 7 through the control processor interface block 912, the bus 82, and the connection control processor interface block 711.
Send to 14th.

Upon receiving this instruction, the switch control block 714 transmits all link busy information to the connection control block 91 through the connection control processor interface block 716, the bus 82, and the signal control processor interface block 912.
Send to 3.

The connection control block 913 also includes the signal control processor 7
An instruction is sent to the switch control block 724 through the signal control processor interface block 912, the bus 82, and the connection control processor interface block 726 to send the full busy information for the links stored in the switch control block 724 of the 21 switch control block 724.

Upon receiving this instruction, the switch control block 724 transmits all the link busy information to the connection control block 9 through the connection control processor interface block 726, the bus 82, and the signal control 7' processor interface block 912.
Send to 13th.

Based on all the busy information of these links, the connection control block 913 performs link matching and connects the extension telephone 11 that made the call.
1 and the outgoing register trunk 621 is selected.

Calling extension telephone 1 identified by the above connection control operation
11, accommodation position information in the switching network 52 of the transmission register trunk 621, switching networks 51, 52 connecting therebetween, and jumper 8.
10 channel information is stored in connection control block 913.

The connection control block 913 transmits the accommodation location information of the calling extension telephone 111, the channel information of the switching network 51, the information of the jumper 81, and the call path closing instruction through the signal control processor interface block 912J bus 82 and the connection control processor interface block 716. The control block 913 sends the accommodation position information in the switching network 52 of the originating register trunk 621, the switching network 520 channel information, the jumper 81 information, and the communication path closing instruction to the switch control block 714 and connects it to the signal control processor interface block 912. , bus 82 and connection control processor interface block 726 to switch leg block 724 .

Switch control block 714 closes the switching network 510 call path switch based on this instruction;
Switch control block 724 closes the switching network 520 call path switch based on this instruction;
A communication path between the calling extension telephone 111 - the line circuit 211 - the switching network 51 - the jumper 81 - the switching network 52 - the calling register trunk 621 is completed, and the calling extension telephone 111 is routed through this route.
to send a dial tone from the calling register trunk 621.

In order to store the connection state of the switching network 51 including the accommodation location information, channel information, and jumper information of the calling extension telephone 111 in the switching network 51 in the connection state memory of the switch snout block 714, these information and connections are made. The connection control block 913 sends the state memory write instruction to the switch control block 714 through the signal control processor interface block 912, the bus 82, and the connection control processor interface block 716, and stores this information in the connection state memory of the switch control block 714. let

In addition, information on the accommodation location of the outgoing register trunk 621 in the switching network 52, channel information,
In order to store the connection state of the switching network 52 including jumper information in the connection state memory of the switch control block 724, the connection control block 913 sends this information and a connection state memory write instruction to the signal control processor interface block 912 and the bus 82. , through the connection control processor interface block T26 to the switch control block 724 and store these information in the connection state memory of the switch control block 724.

After that, the connection control block 913 sends a recovery signal to the connection control processor interface block 716 through the signal control processor interface block 912 and the bus 82, sends a recovery signal to the connection control processor interface block 726 through the connection control processor 9
11 will be restored.

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 path 1-switching network 51-calling register trunk 611, the dialed number information is transferred to the calling register trunk 611.
It is received at 1.

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.
0 number is stored in the information storage memory.

Trunk control block 715 performs 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.

The trunk control block 715 detects and stores the number information sent from the extension telephone 111, and when the number of required digits determined by the pre-translation operation has been received,
When the trunk control block 715 identifies that this reception has been completed, it stores a Q activation request signal in the connection control processor activation plug memory in the connection control processor interface block 716 in order to request the connection control processor to activate the extension mutual calling connection. .

Now, assuming that the connection control processor 911 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 blocks 716, 726, . ..., the connection control processor activation plug memory of 7m5 is scanned one after another, and activation requests from the signal control processor 711 are detected.

The activated signal control processor interface block 912 recognizes that some number information has been received by the trunk control block 715 of the signal control processor 711, but it needs to identify which call type 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 sent from the memory control block 102 through the bus 83 to the signal control processor interface block 912 of the connection control processor 911.

Having received this information, the signal control processor interface block 912 sends an activation signal to the connection IJ 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 connection control block 913 starts extension mutual calling connection control, it first instructs the signal control processor interface block 912 and the bus 8 to send an instruction to send the accommodation position information in the switching network 51 of the calling extension telephone 111.
2. Connection control processor interface block 71
6 to switch control block 714.

Upon receiving this instruction, the switch control block 714 transfers the accommodation position information of the calling extension telephone 111 from the connection state memory of the switch control block 714 to the connection control interface block 716, the bus 82,
The signal is sent to the connection control block 913 through the signal control processor interface block 912, and is passed to the connection control block 913.

Condensation IJ control block 913 then sends an instruction to send number information of the called extension to trunk control block 715 through signal control processor interface block 912, bus 82, and connection control processor interface block 716.

Upon receiving this instruction, the trunk control block 715 transfers the number information from the trunk control block 7150 number information storage memory to the connection control processor 911 through the connection control processor inter 7 eighth block 716, bus 82, and signal control processor interface block 912.
connection control block 913 and connection control block 9
13 to memorize it.

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 in order to identify the accommodation location information of the called extension on the line side of the switching network. 912 , to the memory control block 102 of the data memory 101 via the bus 83 .

The memory control block 102 reads line-side accommodation position information of the switching network corresponding to the received 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, this identified called extension is extension 112.
Then, the memory control block 102 stores information on the accommodation position of the extension telephone 112 on the line side of the switching network 51.

This accommodation position information is stored in the memory control block 102.
The signal is sent from the bus 83 to the connection control block 913 through the signal control processor interface block 912 and 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 the busy information of the extension telephone 112 to the connection control block 913 through the connection control processor interface block 716, the bus 82, and the signal group m processor interface block 912.

When the connection control block 913 that has received this information identifies that the extension telephone 112 on the called side is in an idle state, it then moves to an extension mutual trunk selection operation.

The connection control block 913 instructs the signal control processor interface block 912 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; bus 82 to trunk control block 715 through connection control processor interface block 716.

Upon receiving this instruction, the trunk control 715 connects the trunk type report and all busy information through the control processor interface block 716, the bus 82, and the signal control processor interface block 912.ff1lJI
Send to N block 913.

Based on the trunk type information and all-busy information, the connection control block 913 selects an empty extension mutual trunk,
Storage position information on the trunk side of the switching network 51 of the trunk is stored in the connection control block 913.

Assuming that the trunk 612 is an empty 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 connection control block 913 connects the calling side extension telephone 111
and a switch in the signal control processor 711 to select an empty channel connecting between the called side extension telephone 112 and one terminal of the extension mutual trunk 612 and an empty channel connecting between the called side extension telephone 112 and the other terminal of the extension mutual trunk 612. An instruction to send all link busy information stored in control block 714 is sent to switch control block 714 through signal control processor interface block 912, bus 82, and connection fai411 processor interface block 716.

Upon receiving this instruction, the switch control block 714 transmits all link busy information to the connection control block 91 through the connection control processor interface block 716, the bus 82, and the signal control processor interface block 912.
Send to 3.

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

The calling side extension telephone 111. which has been identified by the above connection control operation. Called side extension telephone 112, extension mutual trunk 6
120 The accommodation position information of the two terminals in the switching network 51 and the channel information of the switching network 510 connecting between them are provided by the connection control block 9.
It is stored in 13.

These calling party extension telephones 111. Extension mutual trunk 6
Accommodation position information in the 12 switching networks 51 and the switching network 5 connecting between them
10 channel information, a call path switch closing instruction, accommodation position information in the switching network 51 of the called side extension telephone 112 and the extension mutual trunk 612, and the switching network 510 that connects them, channel information and a call path switch closing instruction. Calling side extension telephone 11
1. A control block 913 connects the accommodation position information of the outgoing register trunk 611 in the switching network 51, the channel information of the switching network 510 connecting therebetween, and the communication path switch release instruction.
2. Connection control processor interface block 71
6 to switch control block 714.

Switch control block 714 closes the switching network 510 call path switch based on this instruction;
A communication path between the calling side extension telephone 111 line circuit 211 - the switching network 51 - the mutual extension trunk 612 - the switching network 51 - the line circuit 212 - the called side extension telephone 112 is connected, and at the same time the calling side extension telephone 111 - the line The communication path between the circuit 211, the switching network 51, and the originating 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 calling signal to the called extension telephone 112, the connection control block 913 connects the called extension telephone 112 to the called extension telephone 112.
The signal control processor interface block 912, the bus 82, the connection control processor interface block 7
16 to line control block 713.

Upon receiving this information, the line wall block 713 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 and the bus 82. , to the trunk control block 715 through the connection control processor interface block 716.

Upon receiving this information, trunk control block 715 activates a relay within interextension trunk 612 to send out a ring 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 1 in the 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 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, is stored in the connection state memory of the switch control block 714. In order to do this, the connection control block 913 sends these information and connection state memory write instructions to the switch control block 714 through the signal control processor interface block 912, the bus 82, and the connection control processor interface block 716.
This information is stored in the connection state memory of the computer.

After that, the connection control block 913 sends a recovery signal to the connection control processor interface block 716 through the signal control processor interface 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 there are no vacant trunks, or if there are any vacant mutual trunks. If there is no empty channel, the connection control block 913 connects the calling extension 111 to a switching network 52 that is different from the switching network 51 being served. . . . performs an operation of selecting an empty extension mutual trunk accommodated in 5m.

The trunk selection operation, channel selection operation, communication path switch Tjsp operation, etc. in such a case are the same as in the case of the tone connection control operation described above.

Next, the called extension response connection that occurs when the called extension telephone 112 responds will be described.

When the called extension telephone 112 to which the ringing signal has been sent picks up the handset and answers, the response is transmitted to the line circuit 212.
Receive at.

The response signal received by the line circuit 212 is detected by the line control block 113 of the signal control processor 711, and when the line control block identifies the response of the called extension 112, the response signal is sent to the switching network 51 of the called extension 112. Accommodation position information is stored in the line control block 713, and an activation request signal for issuing an extension mutual response connection activation request to the connection control processor 911 is stored in the connection control processor activation flag memory in the connection control processor interface block 716. be done.

Assuming that the connection control processor 911 is not currently executing connection control but is currently detecting an activation request from the signal control processor, the signal control processor interface block 912 is connected to the connection control processor interface blocks 716, 726, . . . . , the connection control processor startup plug memory of 7m6 is scanned one after another, and a startup request from the signal control processor 711 is detected.

When activated signal control processor interface block 912 identifies that the activation request type is extension interconnect response connection control, it sends an activation signal to contact J control block 913 to start extension interconnect response connection control.

When this connection control block starts the extension mutual response connection control operation, it first sends instructions to the signal control processor interface block 912 and the bus 82 to send accommodation position information on the line side of the switching network 51 of the called extension telephone 112 that responded , to the line control block 713 through the connection control processor interface block 716.

Upon receiving this instruction, the line control block 713 sends the accommodation location information of the called extension telephone 112 to the connection control block 913 of the connection control processor 911 through the connection control processor interface block 716, the bus 82, and the signal control processor interface block 912. This storage position information is stored in the connection control block 913.

Next, the connection control block 913 connects the called side extension telephone 112
The contents of the connection state memory stored in the switch control block 714 are looked at to identify the mutual trunks connected to the extension telephone 112 and the switching network 51 via the channel of the switching network 510. Switching network 5 of extension mutual trunks 612 connected to
1 is sent to the switch control block 714 through the signal control processor interface block 912, the bus 82, and the connection control processor interface block 716.

Upon receiving this instruction, the switch control block 714 looks at the contents of the connection state memory and transfers the accommodation position information of the mutual extension trunk 612 in the switching network 51 to the connection control processor interface block 716 and the bus 8.
2. Signal control processor interface block 91
2 to the connection control block 913, and the connection control block 913 stores this accommodation position information.

Next, the connection control block 913 connects the accommodation position information in the switching network 51 of the called side extension receiver 112 stored in the connection control block 913 and the ringing signal stop instruction. Line control block 713 through connection control processor interface block 716
send to

The line that received this information! IJell block 713
restores the relay in the line circuit 212 to stop the ringing signal to the called extension telephone 112, and also creates a communication path between the called extension telephone 112, the line circuit 212, the switching network 51, and the inter-extension trunk 6120.

Next, the one-leg block 913 connects the accommodation position information in the switching network 51 of the mutual extension trunk 612 stored in the connection control block 913 and the ringer stop instruction. Trunk control block 7 through control processor interface block 716
Send to 15th.

Upon receiving this information, trunk control block 715 restores the relay in trunk 612 to stop ringing to calling extension 111.

As a result, the calling side extension telephone 111-line circuit 21
1-Switching network 51 extension mutual trunk 6
12-Switching network 51-Line circuit 21
2 and the called side extension telephone 112, a communication path for extension interconnection is completed.

In order to store the connection state in the switching network 51 in the connection state memory of the switch control block 714, the connection control block 913 sends this connection state information and a connection state memory write instruction to the signal control processor interface block 912, the bus 82, It is sent to the switch control block 714 through the connection control processor interface block 716 to store this information in the connection state memory of the switch 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 interface block 912 and the bus 82, and the connection control processor 911 recovers.
Completes the extension interresponse connection control operation.

In the above connection control operation, when using an extension mutual trunk that is not accommodated in the switching network 51, it is necessary to perform the extension mutual response connection control operation across multiple signal control processors and one connection control processor. be.

The connection operation in this case is similar to the dial tone connection control operation and the extension mutual calling connection control operation described above.

The connection control operations for each of the tone connection control operation, extension mutual call connection control operation, and extension mutual response connection control operation have been described above.

Local line outgoing connection control operation, central line incoming connection control operation, leased line outgoing connection control operation, leased line incoming connection control operation, relay connection control operation, automatic transfer connection control operation, speed dial connection control operation, variable missed call forwarding connection control Similar connection control operations are performed for various types of connection control such as operation and communication.

Since the present invention has been explained in detail through the detailed description of the three types of connection control operations, the description of the other connection control operations will be omitted.

Next, a second embodiment of the present invention is shown in FIG.

In FIG. 2, the line side terminal of the switching network 5 includes a line circuit 211. .......

21n; 22L..., 22n,...
2mL..., extension telephone 111 via 2mn
．．・・・・・・．

11n, 121,..., 12n, song...t
lml>..., 1mn and office line relay board control circuit 411. ......, 41n, 421.・・・・・・
,42n,...

4m1. ......, central office line relay board 31 via 4mn
1゜..., 31n, 321,...
,32n,...

3m1. ......, 3mn is connected, and the trunk side terminal of the switching network 5 is connected to the trunk 611.
, 61n, 621.・・・・・・62
n.

......, 6ml, ......(imn is connected.

Extension telephone 111. ..., 11n; line circuit 211. ......, 21n: Office line relay stand 311.・
・・・・・・．

31n; Office line relay board control circuit 411. .......

41n; Trunk 611. . . . A signal control processor 711 is provided to control the reception and transmission of various control signals regarding 61n.

Extension telephone 121. . . . , 12n; line circuit 221°, . . . , 22n: office line relay stand 321.・
..., 32n; station line relay board control circuit 421.・・・
..., 42n Nidrank 621.・・・・・・、6
A signal control processor 721 is provided to control reception and transmission of various control signals related to 2n.

Similarly, if the telephone extension is 1m1. ......, 1 mn
+ line circuit 2m1. .......

2m; Office line relay stand 3m1.・・・・・・13rn n
v station line relay board control circuit 4m1. ......, 4mn
;) Rank 6m1. ......, a signal to control the reception and transmission of various control signals related to 5mn! ! J# processor 7ml is provided.

A signal control processor 701 is provided to close and open the switching network 50 communication path.

Signal control processors 711, 721.・・・・・・7
m1 is functionally composed of several blocks, namely, a line control block, a central office relay unit side block, a trunk control block, and a connection control processor interface block.

The signal control processor 711 is a line control block 712
, central office line relay control block 713, trunk control block 714, connection Tj! lfM] processor interface block 715.

Signal control processor T21. ..., 7ml are also connected to the line control block 722.・・・・・・7m
2: Office line relay stand control block 723.・・・・・・7
m3; ) rank control block 724.・・・・・・
, 7m4; connection control processor interface block 725. .......

It consists of 7m5.

The signal control processor 701 is functionally composed of several blocks, namely a switch control block 702 and a connection control processor interface block 703.

Signal control processors 711, 721. ....... 7
ml is a line circuit that corresponds to each signal control processor, a control circuit that detects control signals from external equipment, a central office line relay board control circuit, trunks, etc. It has the function of controlling the sending of control signals from to external equipment and the function of interfacing with the connection control processor.

The line control block detects calling information sent from the extension telephone, controls sending of a calling signal to the extension telephone, detects response information sent from the extension telephone, and so on.

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

The trunk control block detects, counts, and accumulates the selection signal sent from the extension phone], detects the hooking signal sent from the extension phone, detects the recovery signal sent from the extension phone, detects the incoming signal sent from the opposing station, Detection of the connection confirmation signal sent from the opponent station Detection of the response signal sent from the opponent station, Detection of the recovery signal sent from the opponent station, Control of detection, counting, and accumulation of selection signals sent from the opponent station, Sending of activation signal to the opponent station control, sending out selection signals to the opposing station, controlling sending of connection confirmation signals sent from the playing station,
It controls the sending of response signals to the opposing station, controls the sending of one recovery signal to the opposing station, pre-translates the selection signal sent from the extension telephone and the opposing station, and so on.

The connection control processor interface block determines activation conditions for the connection control processor, controls transfer of control information with the connection control processor, and the like.

The switch control block controls the communication path switch, the communication path switch memory, the connection state memory, etc.

On the other hand, connection control processors 911, 92L...
, 9p1 is activated by detecting an activation request from the signal control processor, and performs dial tone connection, extension line interconnection, central office line originating connection, central office line incoming connection, leased line originating connection, leased line incoming connection, relay connection, automatic transfer connection, speed dial connection,
This processor performs various types of connection control such as variable absent transfer connection, and is composed of a signal 1f6sp processor interface block and a connection control block.

The signal control processor interface block determines whether the signal control processor has issued a startup request to the connected control processor, and if it has started, accepts the startup request and identifies the type of startup request. Transfer of control information with ff1lJl1, etc. is performed.

The connection control block provides 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.

Also, the signal $1 leg processors 711, 721 .・・・・・・
..., 7m1.701 and connection control processor 911゜9
21, . . . , 9p1 are connected by a bus 81, that is, a control information lead.

Now, there is no fixed correspondence between the signal poison monopod processor and the connection control processor.

Signal f! IJIMI processors are installed to correspond to various equipment groups such as extension telephone line circuits, office line relay boards, office line relay board control circuits, and trunks connected to line side terminals and trunk side terminals of the switching network. .

The number of devices connected to the line side terminals and trunk side terminals of the switching network processed by the signal control processor is determined by the processing capacity of the signal control processor.

The signal discrimination processor 711 is connected to an extension telephone 111 . .......

11n; line circuit 211. ......, 21 n
; Office line relay stand 311. ..., 31n; station line relay board control circuit 411. ......, 41n Nidorunk 611. .......

Only processing related to 61n is performed.

The signal control processor 121 is connected to an extension telephone 121 .・・・・・・、
12n; line circuit 221. ......, 22n;
Office line relay board 321,..., 32n: Office line relay board control circuit 421,..., 42n;) Rank 621. .......

Only processing related to 52n is performed.

Similarly, the signal control processor 7ml controls the telephone extensions 1m1. ...
....

1mn; line circuit 2m1. ......, 2rn
ny station line relay stand 3m1. ......, 3rn n
s station line relay board control circuit 4m1. ......, 4mn;
) rank 6m1. .......

(Perform only processing related to imn.

Signal control processor 701 performs only processing related to switching network 5.

That is, each device group to be processed by the signal control processor is fixed in terms of hardware.

The connection control processor does not have a fixed correspondence with the switching network and the equipment controlled by the switching network (it has a correspondence with all signal control processors, that is, it is in the air), and it is possible to transfer leg information. .

That is, the connection control processor 911 can transfer control information to the signal control processor 711 via the bus 81, can transfer control information to the signal control processor 721, and can transfer control information to the signal control processor 7mI, Control information can also be transferred to the signal control processor 701.

Similarly, connection control processor 921. .......

9.1 also all signal control processors 711゜721,
......, 7m1.701 and control information can be transferred.

Connected TJ control processor 911, 921゜...
All of the 9p1 have the same processing ability and function, and the number of connection control processors is determined according to the call volume of the activation request for the connection control processors from the signal poison control processor.

Further, a data memory 101 is a memory for storing system-necessary information such as number group information 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
1.921, ..., and 9p1, respectively.

Connection 1frJsp processor 911, 921.・・・・・・
9p1 and the data memory 101 are connected by a bus 82, that is, an information transfer read.

Next, the control operation in the case of dial tone connection will be explained.

When extension telephone 111 makes a call, call information is sent to line circuit 211 .

The line control block of the signal ftrllJM processor constantly scans to see if there is a line circuit that is in a calling state. If there is a line circuit that is in a calling state, it detects it and switches the line of the switching network. Information on the accommodation position of the line circuit at the side terminal is stored in the memory in the line control block.

When the extension telephone 111 makes a call, the signal control processor 7
The line control block 712 of No. 11 detects the line circuit 211 which is in the calling state by scanning, and controls the line circuit 2
The accommodation position information of the line side terminals of the switching networks 5 of 11 is stored in the memory within the line control block 712.

The line control block 712 that detected the call sends a tone connection activation request signal to the connection control processor interface block 715, and stores the tone connection activation request signal in the connection control processor activation flag memory in the connection control processor interface block 715. let

On the other hand, the signal control processor interface block in the connection control processor that is not executing connection control in response to an activation request from the signal control processor detects whether there is an activation request from the signal control processor.

This detection is performed by checking whether a startup flag is written in the connection control processor startup flag memory in the connection control processor interface block of the signal control processor.

Assuming that the connection control processor 911 is not currently executing connection control but is currently detecting an activation request from the signal control processor, the signal control processor interface block 912 is connected to the connection control processor interface blocks 715, 725, . . . . The connection control processor 7m5 sequentially scans the movement flag memory and detects a beep connection activation request from the signal control processor 711.

Connection control processor intern eighth block 715,
725. ......, the connection control processor activation flag memory of 7m5 includes a dial tone connection activation request signal, an extension interconnection activation request signal, a central office line outgoing connection activation request signal, a local line incoming connection activation request signal, and a dedicated line outgoing connection request signal. Activation request flags for the connection control processor such as connection activation request signal, leased line incoming connection activation request signal, relay connection activation request signal, automatic transfer connection activation request signal, speed dial connection activation request signal, variable absent transfer connection activation request signal, etc. be remembered.

When the connection control processor detects an activation request from the signal control processor, the transfer of control information takes place through bus 81.

When the signal unit side processor interface block 912 of the connection control processor 911 that has received the connection activation request from the signal starvation processor 111 identifies that the activation request type is a dial tone connection, it connects to start dial tone connection control. A start signal is sent to control block 913.

When dial tone connection control is started, the connection control block 913 first sends an instruction to the signal control processor interface block 912 to send accommodation position information on the line side of the switching network 5 of the extension telephone 111 that has made the call.
, bus 81 and connection control processor interface block 715 to line control block 712 .

Upon receiving this instruction, the line control block 712 transfers the accommodation location information of the calling extension telephone 111 to the processor interface block 715 and the bus 81. The signal is sent to the connection control block 913 of the connection control processor 911 through the signal control processor interface block 912.

The connection control block 913 instructs the trunk control block 714 of the signal control processor 711 to send the trunk type information and all-busy information to the signal processor interface block 912 in order to select an empty transmission register trunk. , bus 81. It is sent to the trunk control block 714 through the connection control processor interface block 715.

Upon receiving this instruction, the trunk control block 114 sends the trunk type information and all busy information to the connection control block 913 through the connection control processor interface block 715, bus 81, and signal control processor interface block 912.

Based on the trunk type information and all-busy information, the connection control block 913 selects an empty originating register trunk, and connects the connection control block 913 to the accommodation position information on the trunk side of the switching network 5 for that trunk.
memorize it internally.

Now, assuming that the trunk 611 is an empty originating register trunk, the accommodation position information of the trunk 611 in the switching network 5 is stored in the connection control block 913.
stored within.

Next, the connection control block 913 connects the extension telephone 11 that made the call.
Signal control processor interface block 912 sends instructions to send all link busy information stored in switch control block 702 of signal control processor 701 to select an empty channel connecting between signal control processor 701 and outgoing register trunk 611. 81. It is sent to the switch control block 702 through the connection control processor interface block 703.

Upon receiving this instruction, switch control block 702 connects all busy information of the link to control processor interface block 703, bus 81. Connection control block 91 through signal control processor interface block 912
Send to 3.

Connection control block 91 based on all busy information of this link
Step 3 performs link matching and selects an empty channel that connects the calling extension telephone 111 and the calling register trunk 611.

Calling extension telephone 1 identified by the above connection control operation
11. Information on the accommodation position of the originating register trunk 611 in the switching network 5 and channel information on the switching network 50 connecting therebetween are stored in the connection leg block 913.

These calling extension telephones 111. Accommodation position information in the switching network 5 of the outgoing register trunk 611 and the switching network 5 connecting therebetween
A control block 913 that connects channel information and communication path switch closing instructions is connected to a signal control processor interface block 912, a bus 81. It is sent to the switch control block 702 through the connection control processor interface block 703.

Based on this instruction, switch control block 702 closes the switching network 50 call path switch, completes the call path between calling extension telephone 111 - line circuit 211 - switching network 5 - calling register trunk 611, and transmits the call through this path. Calling extension telephone 111
A dial tone is sent from the calling register trunk 611.

Calling extension telephone 11 in a switching network
In order to store the connection state of the switching network 5 including the storage location information of the transmission register trunk 611, the storage location information of the transmission register trunk 611, and channel information in the connection state memory of the switch control block 702, these information and connection state memory write instructions are sent. The control block 913 connects the signal control processor interface block 912, the bus 81,
It is sent to the switch control block 102 through the connection control processor interface block 703.

The switch control block 702 that receives this instruction stores information about these in the connection state memory.

After that, the connection control block 913 sends a recovery signal to the connection control processor interface block 715 through the signal control processor interface block 912 and the bus 81, and the connection control processor 911 recovers.
Complete the dial tone connection operation.

In the above connection control operation, the signal control processor 71
If there are no calling register trunks within the controllable range of 1, or if there are calling register trunks but no empty channels, or if there are empty calling register trunks but no empty channels. etc. are signal control processors 721 . . . . , an operation is performed to select an empty originating register trunk with a 7m10 control range.

For example, if the outgoing register trunk in the signal processing processor 7110 control range is busy and the signal control processor 721
If the trunk 621 in the 0 control range is an empty originating register trunk, the connection T3+ leg block 913 selects an empty originating register trunk within the control range of the signal control processor 721 by an operation similar to the trunk selection operation described above. Then, storage position information on the trunk side of the switching network 5 is stored in the connection control block 913.

Next, an empty channel is selected to connect the extension telephone 111 that made the call and the calling register trunk.

This channel selection operation is similar to the channel selection operation described above.

The tone connection control operation for the second embodiment has been described above.

Extension mutual paging connection control operation, extension mutual response connection control operation, central line originating connection control operation, central office line incoming connection control operation, leased line outgoing connection looping operation, leased line incoming connection control operation, relay connection control operation, automatic transfer connection Control operation, speed dial connection I
I) Similar connection control operations are performed for other types of connection control, such as IN operation variable missed transfer connection opening operation.

The extension mutual call connection control operation and the extension mutual response connection control operation can be inferred from the detailed description of the first embodiment, and the same applies to other connection control operations, so the explanation will be omitted here.

Further, a third embodiment of the present invention is shown in FIG.

In FIG. 3, the line side terminals of the switching network 51 have line circuits 21L212゜...,
21n to extension telephones 111, 112゜...
, 11n and the central office line relay board control circuit 411.・・・・・・
, 41n to the central office line relay stand 311. .......

31n is connected, and trunks 611, 612, . . . are connected to the trunk side terminals of the switching network 51.
, 61n are connected.

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

A trunk is also connected to the 5m trunk side end -ff.

Switching network 51. Switching network 52. ..., switching network 5
m are connected by a jumper 81 to form a switching network system.

Extension telephone 11L112. ..., 11n: line circuits 211, 212 . ..., 21n; Office line relay stand 311. . . . , 31n; Office line relay board control circuit 411, . . . , 41n; Switching network 51; Trunk 61L 612.・・・・・・、6
A signal control processor 711 is provided to control reception and transmission of various control signals related to 1n.

Similarly, the signal control processor 721 receives and transmits 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.
is provided.

Further, 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,...,7
m1 is functionally composed of several blocks, namely, a central office line trunk block, a line control block, a switch control block, a trunk control block, and a connection control processor inter7 block.

The signal control processor 711 is the station line relay control block 7
12, a line control block 713, a switch control block 714, a trunk control block 715, and a connection 1m processor interface block 716 are also configured.

Signal control processor 721. . . . , 7m1 is also a station line relay board control block 722, . . .
7m2; line control shop 723,..., 7
m3; switch control block 724,...t
7m4; ) rank control block 725,...
, 7m5; connection control processor interface block 726. It is composed of 7m6.

Signal control processor 711゜721,...,7
m1 is the line side terminal of the switching network corresponding to each signal control processor, the line circuit connected to the trunk side terminal, the central office line relay board control circuit,
Control and line circuits that detect control signals arriving from external devices on trunks, etc., station line relay board control circuits, functions that control sending control signals from trunks, etc. to external devices, functions that control switches in switching networks, It has an interface function with the connection control processor.

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

The line control block detects calling information sent from the extension telephone, controls sending of a calling signal to the extension telephone, detects response information sent from the extension telephone, and so on.

Switch control block (controls the side exit switch, etc.)

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, detection of the selection signal sent from the player, control of counting and accumulation, and sending of the activation signal to the player. control, control of sending selection signals to the game,
Controls the sending of a connection confirmation signal sent from the player, controls the send of a response signal to the player, controls send of a recovery signal to the player, pre-translates the selection signal sent from the extension telephone/player, etc.

The connection control processor interface block determines activation conditions for the connection control processor, controls transfer of control information with the connection control processor, and the like.

Also, the connection control processor 91L921.・・・・・・
, 9p1 is activated by detecting an activation request from the signal control processor, and performs dial tone connection, extension line interconnection, central office line originating connection, central office line incoming connection, leased line originating connection, leased line incoming connection, relay connection, automatic transfer connection, speed dial connection,
This processor performs various types of connection control such as variable missed transfer connections and is composed of a signal $1% processor interface block and a connection control block.

The signal control processor interface block determines whether the signal control processor has issued a startup request to the connected control processor, and if it has started, it accepts the startup request and sends a signal that identifies the startup request type. +
Controls the transfer of control information to and from the leg processor.

The connection control block provides 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.

Signal control processor 711.721.・・・・・・7
m1 and connection control processors 911, 92L...
, 9p1 are connected by a bus 82, that is, a control information transfer lead.

There is no fixed correspondence between the signal control processor and the connection control processor.

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

Devices connected to the line side terminals and trunk side terminals of the switching network and the number of devices in the switching network that are processed by the signal control processor are determined by the processing capacity of the signal control processor.

The signal control processor 11 has extension telephones 111, 112, . . . connected to the switching network 51.
..., 11n; line circuit 211゜212 ...
..., 21n; central line relay stand 311. .......

A31n station line relay board control circuit 411.・・・・・・、41
n; Trunk 611, 612. ......, 61n;
Only processing related to the switching network 51 is performed.

The signal control processor 21 connects telephone extensions 121, 122, . . . connected to the switching network 52.・・・
..., 12n; line circuit 221.222. ...
..., 22n: Office line relay stand 321, ...,
32n; Office line relay board control circuit 421,..., 4
2n:) Rank 621.622゜..., 62n
Only processing related to the networking network 52 is performed.

Similarly, the signal control processor 7ml is connected to an extension telephone 1m1.1m connected to a switching network 5m.
2. .......

1 m n # line circuit 2ml, 2m2,...
....

2m; Office line relay stand 3m1. ......, 3mn +
Office line relay board control circuit 4m1. ......, 4mn:)
Only processes related to ranks 6ml, 6m2, . . . , 5mn and switching network 5m are performed.

That is, each signal control processor has a fixed group of devices to be processed on the hardware.

The connection control processor does not have a fixed correspondence with the switching network and the equipment connected to the switching network, but can be associated with all signal control processors, that is, can transfer control information.

That is, the connection control processor 911 can transfer control information to the signal control processor 11 via the bus 82, can transfer control information to the signal control processor 721, and can transfer control information to the signal control processor 7mI.

Similarly, connection control processors 921, . . . , 9
p1 also has all signal control processors 71L72L...
..., control information can be transferred to and from 7m1.

Connection control processor 911゜921,...,9
All p1 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 processor to the connection control processors.

A data memory 101 is a memory for storing system-required 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. .......

9pl and the data memory 101 are connected by a bus 83, that is, an information transfer lead.

The communication path switch memory 104 includes the switching networks 51, 52 . . . . 5m memory for storing connection status, memory control block 105
and a memory block 106.

The channel switch memory 104 stores all connection control processors 91L912. .......

Information can be transferred to and from 9p1.

Connection control processor 911, 912°...9
p1 and the communication path switch memory 104 are connected by a bus 83, that is, an information transfer lead.

Next, the control operation in the case of dial tone connection will be explained.

When the extension telephone 111 makes a call, a call notification is sent to the line circuit 211.

The line control block of the signal control processor constantly scans to see if there is a line circuit that is in a calling state. If there is a line circuit that is in a calling state, it detects it and switches the line of the switching network. Information on the accommodation position of the line circuit at the side terminal is stored in the memory in the line control block.

When the extension telephone 111 makes a call, the signal control processor 7
The line control block 713 of No. 11 detects the line circuit 211 which is in the calling state by scanning, and controls the line circuit 2
The accommodation position information of the line side terminals of the switching networks 51 of 11 is stored in the memory in the line control block 713.

The line control block 713 that detected the call sends a dial tone connection activation request signal to the connection control processor interface block 716, and stores the dial tone connection activation request signal in the connection control processor activation flag memory in the connection control processor interface block 716. let

- The signal control processor interface block in the connection control processor that is not executing connection control upon receiving an activation request from the signal control processor detects whether there is an activation request from the signal control processor.

This detection is performed by checking whether a startup flag is written in the connection control processor startup flag memory in the connection control processor interface block of the signal control processor.

Assuming now that the connection control processor 911 is not executing connection control but is detecting an activation request from the signal control processor, the signal starvation processor interface block 912 connects the connection control processor interface blocks 716, 726, . . . . , the connection control processor activation flag memory of 7m6 is scanned one after another, and a beep connection activation request from the signal control processor 711 is detected.

Connection TJ control processor interface block 716
, 726.・・・・・・The 7m6 connection control processor activation flag memory contains a dial tone connection activation request signal, an extension interconnection activation request signal, a central office line outgoing connection activation request signal, a central office line incoming connection activation request signal, and a leased line outgoing connection request signal. connection activation request signal,
Leased line incoming connection activation request signal, relay connection activation request signal,
Activation request flags for the connection control processor, such as an automatic transfer connection activation request signal, a speed dial connection activation request signal, and a variable absent transfer connection activation request signal, are stored.

When the connection control processor detects a Q activation request from the signal control processor, the transfer of control information occurs over bus 82.

When the signal control processor interface block 912 of the connection control processor 911 that has received the Q connection activation request from the signal control processor 711 determines that the activation request type is a dial tone connection (m+J), the signal control processor interface block 912 issues a connection control block to start dial tone connection control. A start signal is sent to 913.

When dial tone connection control is started, the connection control block 913 first sends an instruction to the signal control terminal interface block 91 to send accommodation position information on the line side of the switching network 51 of the extension telephone 111 that has made the call.
2. Send to line control block 713 through bus 82 and connecting tube 1m processor interface block 716.

Rhino control block 713 receiving this instruction sends the accommodation location information of calling extension telephone 111 to connection control block 913 of connection control processor 911 through connection control processor interface block 716, bus 82, and signal control processor interface block 912.

The connection control block 913 instructs the signal control processor interface block 912 to send the 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 calling register trunk. Bus 8'2 passes through 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 originating register trunk, and transmits the accommodation position information on the trunk side of the switching network 51 to the connection control block 913.
Store within 3.

Now, assuming that the trunk 611 is an empty originating register trunk, the accommodation position information of the trunk 611 in the switching network 51 is stored in the connection control block 91.
It is stored within 3.

Next, the connection control block 913 connects the extension telephone 11 that made the call.
1 and the outgoing register trunk 611, and the communication path switch memory 10 to select an empty channel to connect between
The signal control processor interface block 912 sends an instruction to the memory control block 105 through the bus 83 to send all the busy information of the links stored in the memory block 106 of 4.

Memory control block 105 that received this instruction
reads all the busy information of the link from the memory block 106 and temporarily stores the read information in the memory control block 105.

The information temporarily stored in the memory control block 105 is sent to the connection control block 913 through the bus 83 and the signal processor interface block 912.

Connection control block 91 based on all busy information of this ring.
3 performs ring matching and returns the calling extension telephone 111.
An empty channel is selected to connect the transmission register trunk 611 and the transmission register trunk 611.

Calling extension telephone 1 identified by the above connection control operation
Information on the accommodation location of the 11° originating register trunk 611 in the switching network 51 and channel information on the switching network 510 connecting therebetween are stored in the connection control block 913.

These calling extension telephones 111. A connection control block 913 connects information on the storage location of the outgoing register trunk 611 in the switching network 51, channel information on the switching network 510 connecting therebetween, and a call path switch closing instruction, and a signal control processor interface block 912, a bus 82, and a connection control processor. through interface block 716 to switch control block 714;

Switch control block 714 closes the switching network 510 call path switch based on this instruction;
A communication path between the calling extension telephone 111, the line circuit 211, the switching network 51, and the calling register trunk 611 is completed, and the calling extension telephone 1 is routed through this route.
11 to send out a dial tone from the calling register trunk 611.

Calling extension telephone 11 in the switching network
In order to store the connection state of the switching network 51 including the accommodation location information of the transmission register trunk 611, the accommodation location information of the calling register trunk 611, and the channel information in the memory block 106 of the communication path switch memory 104, these information and the communication path switch memory 611 are combined. Write instruction connection control block 91
3 is a signal control processor interface block 91
2. Memory control block 10 through bus 83
Send to 5.

Upon receiving this instruction, the memory control block 105 performs control to store these "1ftf information in the memory block 106 of the channel switch memory 104, and stores it in the memory block 106.

Thereafter, the connection control block 913 connects the signal control processor interface block 912 to the bus 82.
C connection control flow processor interface block T16
The connection control processor 911 then recovers and completes the tone connection control operation.

In the above connection control operation, if the switching network 51 does not accommodate any originating register trunks, or if it accommodates any originating register trunks but there are no empty ones, or if there are any empty originating register trunks, If there is no empty channel, a switching network 5 different from the switching network 51 in which the calling extension telephone 111 is accommodated is used.
An operation is performed to select an empty transmission register trunk accommodated in 2°, . . . , 5m.

The operation in this case is similar to the trunk selection operation described above.

Further, the channel selection operation in this case is similar to the channel selection operation described above.

The tone connection control operation for the third embodiment has been described above.

Extension mutual calling connection control operation, extension mutual response connection control operation, central line originating connection control operation, central line incoming connection control operation, dedicated line originating connection control operation Dedicated line incoming connection control operation, relay connection control operation, automatic transfer connection control Similar connection control operations are performed for other types of connection control, such as operation, speed dial connection control operation, variable missed call transfer connection control operation, etc.

The extension mutual call connection control operation and the extension mutual response connection control operation can be inferred from the detailed explanation of the first embodiment and the second embodiment, and the same applies to other connection control operations, so they will not be explained here. omitted.

Next, a fourth embodiment of the present invention is shown in FIG.

In FIG. 4, the line side terminal of the switching network 5 includes a line circuit 211. .......

21n, 22L..., 22n,...
, 2ml.

. . . , extension telephone 111. through 2mn.・・・
....

11n, 121.・・・・・・、12n、・・・・・・
, 1ml.

. . . , 1mn and station line relay board control circuit 411.
......,41n,421,...,42
n......

4m1. ......, central office line relay board 31 via 4mn
1°..., 31n, 321. ......, 3
2n...

3m1. ......, 3mn is connected, and the trunk side terminal of the switching network 5 is connected to the trunk 611.
, 61n, 621.・・・・・・62
n.

......, 6ml, ...t6mn are connected.

Extension telephone 111. . . ., 11n; line circuit 211, . . . 21n; office line relay stand 311.・・・
....

31n; Office line relay board control circuit 411. .......

4in; ) rank 611. . . . A signal control processor 711 is provided to control reception and transmission of various control signals regarding 61n.

Extension telephone 121. . . . , 12n; Line circuit 221° . . . , 22n; Office line relay stand 321.・
..., 32n; station line relay board control circuit 421.・・・
..., 42n:) Rank 621.・・・・・・、6
A signal control processor 721 is provided to control reception and transmission of various control signals related to 2n.

Similarly, extension telephone 1m1.・・・・・・21 rnn
Niline circuit 2m1. .......

2m, central line relay stand 3m1.・・・・・・31Tln
r station line relay board control circuit 4m1. ......, 4mn
: ) Rank 6m1. . . . A signal control processor 7m1 is provided to control reception and transmission of various control signals related to 6mn.

A signal control processor 701 is provided to close and open the switching network 50 communication path.

Signal poison fat processor 711.721,...
7m1 is functionally composed of several blocks, namely a line control block, a central office relay control block, a trunk control block, and a connection control processor interface block.

The signal control processor 711 is a line control block 712
, a central office line relay control block 713, a trunk control block 714, and a connection control processor interface block 715.

Signal control processor 721. . . . , 7m1 are also line control blocks 722 .・・・・・・7m
2: Office line relay stand control block 723.・・・・・・7
m3; ) rank control block 724.・・・・・・
, 7m4; connection control processor interface block 725. .......

It consists of 7m5.

The signal control processor 701 is functionally composed of several blocks, namely a switch control block 702 and a connection control processor interface block 703.

Signal control processors 711, 721,...
. 7ml detects control signals coming from external devices to the line circuits, station line relay board control circuits, trunks, etc. that correspond to each signal control processor! 1Jffil and line circuit, station line relay stand! + It has a function to control sending control signals from the leg circuit, trunk, etc. to external equipment, and an interface function with a connection control processor.

The line control block detects calling information sent from the extension telephone, controls sending of a calling signal to the extension telephone, detects response information sent from the extension telephone, and so on.

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

trunk! ! The I(M) block detects, counts, and controls the accumulation of selection signals sent from the extension phone, detects hooking signals sent from the extension phone, detects recovery signals sent from the extension phone, and detects incoming signals sent from the opposing station. ,
Detection of a connection confirmation signal sent from a player, detection of a response signal sent from a player, detection of a recovery signal sent from a player,
Control of detection, counting, and accumulation of selection signals sent from the game,
Control of sending a start signal to the player, control of sending a selection signal to the player, control of sending a connection confirmation signal sent from the player, control of sending a response signal to the player, control of sending a recovery signal Q to the player, telephone extension - Performs pre-translation of the selection signal sent from the opponent.

The connection control processor interface block determines the startup conditions of the connection control processor and connects it with the connection control processor! ! Controls the transfer of Jffl information, etc.

The switch control block controls the communication path switch and so on.

Next, connection control processor 91L92L...9
p1 is activated by detecting an activation request from the signal control processor, and performs dial tone connection, extension line interconnection, central office line originating connection, central office line incoming connection, leased line originating connection, leased line incoming connection, relay connection, and automatic transfer. It is a processor that performs various connection controls such as connection, shortened timetable connection, and variable absent transfer connection, and is composed of a signal control processor interface block and a connection control block.

The signal ff1ilJi[III The processor interface block determines whether the signal control processor has issued a startup request to the connection control processor, and if it has started, accepts the startup request and identifies the startup request type. Controls the transfer of control information to and from the control processor.

The connection control block provides 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.

Signal control processors 711, 712.・・・・・・-27
m1,701 and connection control processor 911゜912,・
..., 9p1 are connected by a bus 81, that is, a control information read.

There is no fixed correspondence between the signal control processor and the connection control processor.

Signal processors are installed to correspond to various equipment groups such as extension telephones, line circuits, office line relay boards, office line relay board control circuits, trunks, etc. that are connected to the line side terminals and trunk side terminals of the switching network. It is being

The number of devices connected to the line side terminals and trunk side terminals of the switching network processed by the signal control processor is determined by the processing capacity of the signal control processor.

The signal control processor 711 is connected to an extension telephone 111 .・・・・・・、
11n; Line circuit 211, . . . , 21n; Office line relay stand 311. .......

31n; Office line relay board control circuit 411. .......

41n;) Rank 611. . . . , only the processing related to 61n is performed.

The signal control processor 721 connects the extension telephone 121 .・・・・・・、
12n; Line circuit 221, . . . , 22n; Office line relay stand 321. .......

32n; Office line relay board control circuit 421. .......

42n;) Only the processing related to ranks 621, . . . , 62n is performed.

Similarly, the signal control processor 7ml controls the telephone extensions 1m1. ...
...11 rn n + line circuit 2ml, ...
..., 2mn; central line relay stand 3ml.

......, 3mn, station line relay board control circuit 4m1.・
・・・・・・．

4mn;) rank 6m1. . . . (Perform only processing related to imn.

Signal control processor 701 performs only processing related to switching network 5.

That is, each device group to be processed by the signal control processor is fixed in terms of hardware.

The connection control processor does not have a fixed correspondence with the switching network and the devices connected to the switching network, and all signals are connected to the switching network. tilJIf[
It is possible to associate with the ill processor, that is, to transfer control information.

That is, the connection control processor 911 can transfer control information with the signal control processor 711 via the bus 81, can transfer control information with the signal control processor 721, can transfer control information with the signal control processor 7mI, and can transfer control information with the signal control processor 7mI. Control information can also be transferred to the control processor 701.

Similarly, connection control processor 921.・・・・・・、9
p1 also includes all signal control processors 711, 721 .・
・・・・・・．

7mL 701 and control information can be transferred.

The connection control processors 91L, 92L..., 9p1 all have the same processing ability and functions, and the connection TJ! from the signal control processor! The number of connection control processors is determined according to the activation request call volume for the leg processors.

A data memory 101 is a memory for storing system-required 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 L92L and 9p1.

Connection control processor・911.921,...
.

9p1 and the data memory 101 are connected by a bus 82, that is, an information transfer lead.

The communication path switch memory 104 is a memory for storing the connection state of the switching network 5, and is composed of a memory control block 105 and a memory block 106.

The communication path switch memory 104 can transfer information to and from all the connection control processors 911, 92L, . . . , 9p1.

Connection control processor 91L92L..., 9p1
and the communication path switch memory 104 are connected by a bus 82, that is, an information transfer lead.

Next, the control operation in the case of dial tone connection will be explained.

When extension telephone 111 makes a call, call information is sent to line circuit 211 .

The line control block of the signal control processor constantly scans to see if there is a line circuit that is in a calling state. If there is a line circuit that is in a calling state, it detects it and switches the line of the switching network. Information on the accommodation position of the line circuit at the side terminal is stored in the memory in the line control block.

When the extension telephone 111 makes a call, the signal control processor 7
The line control block 712 of No. 11 detects the line circuit 211 which is in the calling state by scanning, and controls the line circuit 2
The accommodation position information of the line side terminals of the switching networks 5 of 11 is stored in the memory within the line control block 712.

The line control block 712 that detected the call sends a dial tone connection activation request signal to the connection control processor interface block 715, and sets the connection control processor activation flag in the connection control processor interface block 715 to activate the dial tone connection. Store the request signal.

On the other hand, the signal control processor interface block in the connection control processor that is not executing connection control in response to an activation request from the signal control processor detects whether there is an activation request from the signal control processor.

This detection is performed by checking whether a startup flag is written in the connection control processor startup flag memory in the connection control processor interface block of the signal control processor.

Connect now! +If the leg processor 911 is not executing connection control but is detecting an activation request from the signal control processor, the signal control processor interface block 912 connects the connection control processor interface blocks 715, 725, .・・・・・・Scans the connection control processor startup flag memory of 7m5 one after another,
A beep connection activation request from the signal control processor 711 is detected.

connection control processor interface block 715,
725. .......

The connection control processor activation flag memory of the 7m5 includes a dial tone connection activation request signal, an extension interconnection activation request signal, a central office line outgoing connection activation request signal, a central office line incoming connection activation request signal, a leased line outgoing connection activation request signal, and a leased line. Activation request flags for the connection control processor, such as an incoming connection activation request signal, a relay connection activation request signal, an automatic transfer connection activation request signal, a speed dial connection activation request signal, and a variable absent transfer connection activation request signal, are stored.

When the connection control processor detects an activation request from the signal control processor, the transfer of control information takes place through bus 81.

When the signal control processor interface block 912 of the connection control processor 911 that has accepted the connection activation request from the processor 711 identifies that the activation request ``let'' is a beep connection, it issues a signal to start dial tone connection control. A start signal is sent to the connection control block 913.

When dial tone connection control is started, the connection control block 913 first sends an instruction to the signal control processor interface block 912 to send accommodation position information on the line side of the switching network 5 of the extension telephone 111 that has made the call.
, bus 81 and connection control processor interface block 715 to line control block 712 .

Upon receiving this instruction, the line control block 712 transfers the accommodation location information of the calling extension telephone 111 to the connection control processor interface block 715, the bus 81. The signal is sent to the connection control block 913 of the connection control processor 911 through the signal control processor interface block 912.

The connection control block 913 instructs the signal control processor interface block 912 to send trunk type information and all-busy information stored in the trunk control block 714 of the signal control processor 711 in order to select an empty calling register trunk. , bus 81. It is sent to the trunk control block 714 through the connection control processor interface block 715.

Upon receiving this instruction, the trunk control block 714 connects the trunk type information and all busy information to the control processor interface block 715, bus 81. The signal is sent to the connection control block 913 through 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 originating register trunk, and connects the connection control block 913 to the accommodation position information on the trunk side of the switching network 5 for that trunk.
memorize it internally.

Now, assuming that the trunk 611 is an empty originating register trunk, the accommodation position information of the trunk 611 in the switching network 5 is stored in the connection control block 913.
stored within.

Next, the connection control block 913 connects the extension telephone 11 that made the call.
The signal control processor interface block 912 sends an instruction to send all the link busy information stored in the memory block 106 of the channel switch memory 104 to select an empty channel connecting between the signal control processor interface block 912 and the outgoing register 611. is sent to the memory control block 105 through the memory control block 105.

Memory control processor 105 that received this instruction
reads all the busy information of the link from the memory block 106 and temporarily stores the read information in the memory control block 105.

The information temporarily stored in the memory control block 105 is sent to the connection control block 913 through the bus 82 and the signal control processor interface block 912.

Connection control block 91 based on all busy information of this link
Step 3 performs link matching and selects an empty channel that connects the calling extension telephone 111 and the calling register trunk 611.

Calling extension telephone 1 identified by the above connection control operation
11. Information on the accommodation location of the originating register trunk 611 in the switching network 5 and channel information on the switching network 50 connecting therebetween are stored in the connection control block 913.

These calling extension telephones 111. Accommodation position information in the switching network 5 of the outgoing register trunk 611 and the switching network 5 connecting therebetween
The connection control block 913 sends the 0 channel information and the communication path switch closing instruction to the switch control block 702 through the signal control processor interface block 912, the bus 81, and the connection control processor interface block 703.

Based on this instruction, the switch control block 702 closes the switching net saw 250 call path switch to complete the call path between the calling extension telephone 111 line circuit 211 - the switching network 5 - the calling register trunk 611 and through this path. The calling extension telephone 111 is caused to send a dial tone from the calling register trunk 611.

Calling extension telephone 11 in the switching network
In order to store the connection state of the switching network 5 including the storage location information of the call register trunk 611, the storage location information of the calling register trunk 611, and channel information in the memory block 106 of the call path switch memory 104, these information and the call path switch memory write are stored. connection control block 913
is the signal control processor interface block 912
, memory control block 105 through bus 82.
send to

Upon receiving this instruction, the memory control block 105 performs control to store this rough information in the memory block 106 of the channel switch memory 104, and stores it in the memory block 106.

After that, the connection control block 913 sends a recovery signal to the connection control processor interface block 715 through the signal control processor interface block 912 and the bus 81, and the connection control processor 911 recovers.
Complete the tone connection control operation.

In the above connection control operation, the signal control processor 71
If there are no outgoing register trunks accommodated within the range of 10 units, or if outgoing/register trunks are accommodated but none are empty, or if there are empty outgoing register trunks but there are empty channels. If there is no signal control processor 721, which is different from the signal control processor 711 provided to control the extension telephone 111 that made the call, an empty call is made within a range of 7m10. An operation is performed to select a register trunk.

The operation in this case is similar to the trunk selection operation described above.

Further, the channel selection operation in this case is similar to the channel selection operation described above.

The tone connection control operation for the fourth embodiment has been described above.

Extension mutual calling connection control operation, extension mutual response connection control operation, central line originating connection control operation, central line incoming connection control operation, dedicated line originating connection control operation Dedicated line incoming connection control operation, relay connection control operation, automatic transfer connection control Similar connection control operations are performed for other types of connection control, such as operation, speed dial connection control operation, transfer/absence transfer connection control operation, etc.

The extension mutual call connection control operation and the extension mutual response connection control operation can be inferred from the detailed description of the first embodiment, the second embodiment, and the third embodiment, and the same can be said of the other connection control operations. Therefore, the explanation will be omitted here.

As explained above, according to the present invention, the optimum system according to the conditions required for the exchange is constructed by always using the same control method for the large and small line capacity of the exchange and the various functions of the exchange. be able to.

That is, according to the present invention, small capacity (100 lines or less)
The same model can cover a wide range of applications from large to large capacity (several hundred lines or more), and also has a control method that allows the same model to cover a variety of applications such as in-flight exchanges, Centrex exchanges, central office exchanges, and data exchange pipes. It will be done.

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 is possible to share hardware and software from small to large capacities, shorten the development period, and reduce costs due to the mass production effect of 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 200 lines.
It only has the processing power of a line.

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 inexpensive general-purpose microprocessors in correspondence with each block. The control system can be configured so that the processing power of an inexpensive general-purpose microprocessor is sufficient.

In an embodiment of the invention, all signals ff1tkf
I have described a system in which the control functions of extension telephones, line circuits, central office relay boards, central office relay board control circuits, and trunks are included in the control range of the processor, but the control functions of extension telephones, line circuits, and trunks are included in the control range of each signal control processor. Office line relay board, office line relay board control circuit; A single type of equipment or any combination of multiple types of equipment may be included from among the trunk equipment, and the number of each piece of equipment may be arbitrary. That is clear.

In the detailed explanation of the present invention, the case where the switch control block is included in the signal control processor and the case where it is not included are explained, but the line control block, central office relay control block, and trunk control block are also similar to the switch control block. It is clear that the signal control processor may be included in the signal control processor or may be provided with an independent processor.

In addition, in the embodiment of the present invention, the processing capacity and function of the plurality of connection control processors are all the same, but the processing capacity and function may be the same, or the processing capacity and function may be the same. It is clear that they may be different, and that their processing capabilities and functions may also be different.

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.

Further, although the bus between the connection control processor and the communication path switch memory and the bus between the connection control processor and the data memory are assumed to be the same bus, it is clear that they may be different buses.

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 channel switch memory may be the same or different.

Furthermore, as described in the embodiments of the present invention, an independent data memory may be provided in common to the system, or may be provided for each signal control processor, or may be provided for each connection control processor. This is obvious, and in this case, a data memory with all functions may be provided for each signal control processor or connection control processor, or a data memory with divided functions may be provided for each signal control processor or connection control processor. It is clear that it is good.

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 has nothing to do with the gist of the present invention.

In the drawings showing the embodiments of the present invention, the types of trunks such as calling register trunks, extension trunks, office line trunks, leased line trunks, and other special trunks are not shown, but are generally shown.

The control system of the present invention may be a wired logic method or a stowed 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 calling 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 sending of a ringing signal to the extension telephone, the detection of the response of the extension telephone, etc. may be carried out by the trunk, and this control may be carried out 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 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.

Although several examples of the arrangement of the communication path switch memory have been described in the embodiments of the present invention, it is clear that the gist of the present invention will not be affected even if the arrangement method is changed.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention, and FIG.
3 and 4 are block diagrams showing other embodiments of the present invention, respectively. In FIG. 1, 111.112. ....... 11n, 121, 122. ......, 12n・song・
1ml, 1m2, . . . Imn... Curved line telephone, 21L212. ......, 21n, 22L
222゜..., 22n...2ml,
2m2,...,2mn...line circuit, 311. ......, 31n, 321゜...
...32n...3m1. ......, 3mn
・・・・・・Station line relay stand, 411.・・・・・・、41
n, 421,... 42n...4m1. ......, 4mn...
...Station line relay board control circuit, 51, 52.・・・・・・
・, 5m... Switching network, 61
1,612. ....... 61n, 621, 622. ......, 62n, 6m
l. 6m2. -...,5mn...-Trunk,
711゜721,...-27m1... Signal control processor, 712, 722,...
, 7m2...Station line relay board control block, 713
, 723. ...7m3...Line control block, 714,724. ....... 7m4°°°°°゛Switch control block, 715°7
25,...,7m5...Trunk control block, 716.726. ......, 7m6...
... Connection control processor interface block, 81 ... Jumper, 82, 83 ...
・Bus, 91L921゜..., 9p1...
... Connection control processor, 912°922, ...
-9p2...Signal control processor interface block, 913, 923. ·song·. 9p3...Connection control block, 101...
...Data memory, 102...Memory control block, 103...Memory block, in FIG. 2, 111,..., 11n, 121
．． ......, 12n...1m1.・・・・・・
..., Imn... Extension telephone, 211,...
..., 21n, 221, ..., 22n...
...2m1. ......, 2mn... line circuit, 311゜..., 31n, 321,
......, 32n...3m1゜...
・, 3m... Central line relay stand, 411.・・・・・・
.... 41n, 421. ......,42n...4
m1. ....... 4mn...Station line relay board control circuit, 5...
- Switching network, 611.・・・・・・、
61n. 621,...,62n...6m1.・
..., 6mn... Trunk, 71L72
L...-..., 7m 1 t701... Signal control processor, 712,722゜...-, 7m
2...Line control block, 713°723,
......, 7m3...Station line relay board control block, 714,724. ......, 7m4...
...Trunk control block, 715, 725.・・・・・・
..., 7m5. 703... Connection control processor interface block, 702... Switch control block, 8L82... Bus, 91L92L...
・. 9p1... Connection control processor, 912, 92
2゜..., 9p2... Signal control processor interface block, 913, 923.・・・
..., 9p3... Connection control block, 10
1...data memory, 102...memory control block, 103...memory block, in FIG. 3, 1112112...
・, 1 in, 121, 122. ....... 12n...1m1.1m2.・・・・・・、I
mn・・・Extension telephone, 21L212.・・・・・・
..., 21n. 221.222.・・・－・・・、22n・・・・・・2
m1゜2m2. ......, 2mn...line circuit, 311°..., 31n, 321.・・・
..., 32n...3m1゜---...,
3mn... Central line relay stand, 411.・・・・・・
. 41n, 421. ......,42n...4
m1. ....... 4mn...Station line relay board control circuit, 51, 52
,5. . ..., 5m...Switching network,
611゜612, 61n, 621, 62
2. ....... 62n...-6m1.6m2,...
6mn...Trunk, 71L72L...
-27m1...Signal control processor, 712.
722.・・・・・・, 7m2・・・・・・Station line relay board control block, 713,723°・・・・・・, 7m3
...Line control block, 714°T24.・
..., 7m4...Switch control block, 715.725.・・・・・・、7m5・・・・・・
Trunk control block, 716, 726.・・・・・・
, 7m6...Connection control processor interface block, 81...Jumper, 82,8
3... Bus, 911, 92L..., 9
p1... Connection control processor, 912, 922
．． ......, 9p2... Signal control processor interface block, 913.923. ...
..., 9p3... Connection control block, 101
...Data memory, 102...Memory control block, 103...°...°Memory block, 104...Call path switch memory, 10
5...Memory control block, 106.
...Memory block, in FIG. 4, 111.
....... 11n, 12L..., 12n...1m
1. ....... 1mn・・・Extension telephone, 211.・・・・・・
, 21n. 221,...,22n...2m1.・
..., 2mn... line circuit, 311.
......, 31n, 321゜..., 32n
・・・・・・3m1. ......, 3mn...
・Central line relay stand, 411. ......, 41n, 421
．． ....... 42n...4m1. ......, 4mn...
...Station line relay board control circuit, 5...Switching network, 611, ..., 61 n
, 621 't..., 62n...
6m1,..., 6mn-...Trunk, 711゜721,..., 7mL701...
...Signal control processor, 71.2,722.・・・
..., 7m2 ... line control block, 7
13,723. ......, 7m3...Station line relay board control block, 714,724°......,
7m4・・・Trunk control block, 715°7
25,...,7m5.703...Connection control processor interface block, 702...
...Switch control flock, 81.82...
・Bus, 911.92L..., 9p1...
...Connection control processor, 912, 922.・・・・・・
・, 9p2... Signal control processor interface block, 913.923. ......, 9p
3...Connection control block, 101...
Data memory, 102...Memory control block, 103...Memory block, 104
・・・・・・Call path switch memory, 105°°°°°
°Memory control block, 106...Memory block.

Claims (1)

[Claims] 1. In an automatic switching system, a control means detects control signals arriving from external devices to a plurality of types of devices connected to a communication path network, and a control signal is transmitted from the devices connected to the communication path network to the external devices. A plurality of signal control processors each having a control means for transmitting a signal are provided corresponding to a predetermined group of devices connected to the communication path network, and a connection control processor for controlling connection of the communication path network is provided to control the signal. A plurality of means are provided according to the call volume of activation requests from the processor, and means for transferring information between the signal control processor and the connection control processor, and between the signal control processor, the connection control processor, and these processors; means for performing σ neighbor message transfer, wherein any of the connection control processors in an idle state detects activation requests from the signal control processors, identifies the type of activation request, and controls the switching system. A multiprocessor control method.