JP2002247216A - Exchange system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep an exchange processing ability without the occurrence of restriction in the development of an application and realizing of a linked service with an application though the number of the applications operating within a service device increases. SOLUTION: When an exchange ability detection part 113 detects that a processing time for controlling exchange processing becomes shorter than a requested time in the server CPU 11 of the server device 1, instruction information for carrying out exchange processing is sent through a control bus 2 to telephone exchanging equipment 3. Receiving this instruction information, the equipment 3 carries out exchange connection processing mutually between telephone terminals 41 to 4m and respective terminals 41 to 4m and a public network NW without interposing control by the device 1. At this time, linked service processing with respective applications 141 to 14n is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching system that connects a server device and a telephone exchange device, and the server device and the telephone exchange device execute processing related to an exchange service.

[0002]

2. Description of the Related Art In recent years, private branch exchanges (PBXs) and key telephones have been used in offices and offices as devices for connecting an extension telephone network and a public telephone network. These telephone switching devices (hereinafter, switching devices) are configured as dedicated devices for switching and controlling voice lines.

On the other hand, recently, personal computers and servers have been provided with a PBX function such as a circuit switching function.
It has been proposed to use this instead of PBX. This type of system is called, for example, UnPBX.
This UnPBX is described in JP-A-2000-41.
272, JP-A-11-112655, and JP-A-11-18120, the details of which are omitted here.

[0004] In the UnPBX, the line capacity that can be exchanged is limited to a relatively small capacity due to the processing capacity of the server. Also, when there is a request to increase the capacity of the system, the interface is usually added by adding an interface unit to the internal bus. However, since the number of slots provided in the server is not so large, the capacity is easily increased. Can not do.

On the other hand, conventionally, an exchange is connected to a server, and this exchange accommodates a plurality of lines.
There has also been proposed a system in which a server executes switching connection processing such as switching between lines in a server. By the way, in the server, a plurality of applications handling various data coexist in addition to the call processing engine which performs basic processing related to the switching connection. In this case, the OS of the server is configured to perform the parallel processing, that is, the multitask processing of the plurality of applications by dividing the processing time of the processor into a short time and allocating the divided processing time to the plurality of operating applications. You.

[0006]

However, in the parallel system, as the number of running applications increases, the processing time of the processor assigned to each application decreases. At this time, the processing speed of the call processing engine is equivalently reduced, and a problem occurs in that the switching processing capability between lines is reduced.

On the other hand, in order to maintain the switching processing capability of the call processing engine, if the priority assigned to the processor in the call processing engine is set higher than that of other applications, while the call processing engine is operating, the other processing priority is increased. There is a problem that no application is assigned to a processor and does not operate at all.

[0008] Further, when the call processing engine is provided not in the server but in the switching device and operated so as not to be affected by other applications, the server cannot directly control the call processing engine. There is a problem in that application development for the call processing engine and realization of a service linked with other applications are restricted.

Therefore, an object of the present invention is to provide a system in which a switching device is connected to a server device, and even if the number of applications operating in the server device increases, the development of an application for the switching process and the application It is an object of the present invention to provide an exchange service capable of maintaining the exchange processing capacity without causing a restriction in realizing the linked service.

[0010]

A switching system according to the present invention connects a server device in which a processor processes a plurality of applications for performing predetermined functional operations in parallel, and a plurality of communication lines to which terminal devices can be connected. Processing capacity for detecting the processing capacity of the processor of the server device in a switching system for performing switching processing between a plurality of communication lines connected to the switching device based on control from the processor of the server device by connecting the switching device to the switching device Detecting means;
When the processing capacity detecting means detects that the processing capacity of the processor has decreased by a predetermined capacity or more, the processing sharing for causing the switching device to execute the switching process between a plurality of communication lines without the control of the server device. Means.

According to the present invention, when the processing time required for controlling the exchange processing is shorter than the predetermined time, the processor of the server device notifies the exchange apparatus of instruction information for executing the exchange processing. Upon receiving the information, the switching device executes a switching connection process between the communication lines. For this reason, even if the number of applications operating in the server device increases, other applications are not affected, thereby restricting the development of applications for exchange processing and the realization of services linked with the applications. No need to give.

Further, the switching system according to the present invention includes a server device in which a processor processes a plurality of applications for performing predetermined functional operations in parallel, and a switching device connected to a plurality of communication lines to which terminal devices can be connected. In a switching system for performing a switching process between a plurality of communication lines connected to the switching device based on control from a processor of the server device, a processing capability detecting means for detecting the processing capability of the processor of the server device, When the processing capacity detecting means detects that the processing capacity of the processor has decreased by a predetermined capacity or more, the processing capacity stopping means stops the linked service processing with a plurality of applications.

According to the present invention, in the processor of the server device, when the processing time required for controlling the exchange processing falls below a predetermined time, the service processing in cooperation with a plurality of applications is stopped. For this reason, even if the number of applications operating in the server device increases, it is not necessary to increase the processing capacity of the processor in accordance with the increase, whereby the load on the processor is reduced and the exchange processing capacity can be maintained.

Further, the present invention provides a recovery monitoring means for monitoring a recovery state of a processor of a server apparatus, and a recovery means for recovering exchange control by a processor of the server apparatus in accordance with the recovery state detected by the recovery monitoring means. And further comprising: Further, a feature is provided of processing execution means for executing linked service processing with a plurality of applications according to the recovery state.

According to the present invention, when the processing capability of the processor of the server device returns to normal, the comprehensive exchange processing by the server device is automatically restored. Therefore, for example, when the processing capability of the processor of the server device temporarily decreases and then returns to normal, the exchange control by the server device can be promptly restored without waiting for the recovery operation of the maintenance staff. Further, when the processing capability of the processor of the server device returns to normal, it is possible to quickly restore the link service with a plurality of applications.

[0016]

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

FIG. 1 is a schematic configuration diagram showing one embodiment of a switching system according to the present invention.

This switching system includes a server device 1 and a telephone switching device 3 connected via a control bus 2 for transmitting control information to the server device 1.

The server device 1 has a server CPU 11 having a general-purpose CPU and a general-purpose OS as a call processing engine. The storage device 13, the application unit 14, and the control line interface unit (control line I / F) 15 are connected to the server CPU 11 via the internal bus 12.

The server CPU 11 controls the storage device 13, the application unit 14, and the control line I / F 15 through the internal bus 12.

The storage device 13 stores programs, data, and the like for executing processes related to the exchange service. The storage device 13 has a database 131 for storing operation information and a function module 132 for providing various functions.

The application unit 14 includes applications 141 to 14n for providing various services under the control of the server CPU 11.

The control line I / F 15 performs an interface process related to transfer of control information between the internal bus 12 and the control bus 2.

The server CPU 11 further includes:
A service control unit 111, a terminal control unit A112, an exchange capability detection unit 113, and a link service control unit 114 are provided. The service control unit 111 controls the operation of various services in the exchange processing. Here, multitask processing is executed for each of the applications 141 to 14n.
The terminal control unit A112 controls a telephone terminal, a line, and the like.

The exchange capacity detecting unit 113 is provided with the server CPU 1
1 is monitored, ie, the processor occupancy (the occupation time of the processor assigned to each process).

When the exchange capability detection unit 113 determines that the exchange processing capability of the server CPU 11 is lower than the predetermined capability, the coordination service control unit 114 sends instruction information to the telephone exchange device 3 to perform exchange processing. I do.
In addition, the link service control unit 114 is provided with a switch (permission / non-permission) for managing the link service with the applications 141 to 14n. Control.

On the other hand, the telephone exchange device 3 has an exchange CPU 31 for executing exchange service processing in response to instruction information from the server device 1. The exchange CPU 31 has a data highway 3 for transferring control information.
2 is connected to the data highway 32,
A control line interface unit (control line I / F) 33, a time switch (TSW) 34, an extension interface unit 35, and a station line interface unit 36 are connected to each other, so that control information can be exchanged with the exchange CPU 31. The time switch 34, the extension interface unit 35, and the office line interface unit 36 are connected via a PCM highway 37 for transmitting and receiving audio information.

The extension interface unit 35 connects the telephone terminals 41 to 4m via extensions, respectively, and sends incoming signals to the telephone terminals 41 to 4m, and transmits the incoming signals to the telephone terminals 41 to 4m.
Each telephone terminal 41-4m, such as detection of a transmission signal from 4m
For the extension interface.

The local line interface unit 36 is a public network NW
It performs local line interface processing for the public network NW, such as transmission of an outgoing signal to the public network and detection of an incoming signal from the public network NW.

The time switch 34 exchanges time slots on the PCM highway 37 in accordance with an instruction from the exchange CPU 31 or the server CPU 11, thereby switching between the telephone terminals 41 to 4m, the telephone terminals 41 to 4m and the public network N.
W, and audio information can be transmitted between them.

The control line interface unit 33 performs an interface process related to transfer of control information between the data highway 32 and the control bus 2.

The exchange CPU 31 is provided with a terminal control unit B3.
11 and a driver unit 312. The terminal control unit B311 performs exchange processing between the telephone terminals 41 to 4m and between the telephone terminals 41 to 4m and the public network NW based on control information transmitted from the server device 1 via the control bus 2. Control.

The driver unit 312 is provided for each of the telephone terminals 41 to 4
m and a line are processed to function at a certain level.

The operation in the above configuration will be described. In other words, the server CPU 11
In FIG. 13, for example, as shown in FIG. 2, the occupation time of the processor required for the exchange processing is monitored (step ST1), and it is determined whether or not the occupation time is shorter than the time required by the server CPU 11 (step ST2).

If the occupation time is not shorter than the required time, the server CPU 11
In addition to executing the link service with the telephone terminals 41 to 14n, the multi-task processing controls the exchange processing between the telephone terminals 41 to 4m and between the telephone terminals 41 to 4m and the public network NW.

On the other hand, if the occupation time is shorter than the required time, the server CPU 11 determines that the exchange processing capacity has decreased, and the state in which the exchange processing capacity has decreased continues for T1 as shown in FIG. Is determined (step S
T3) If the time does not continue for T1, the process proceeds to the process of step ST2. Here, if the time has continued for the time T1, the server CPU 11 transfers the instruction information for executing the exchange processing in the cooperative service control unit 114 to the telephone exchange device 3 via the control bus 2 (step ST4). The process of accepting a service activation request from the application is stopped (step ST5).

In the above processing procedure, the server CP
If U11 detects that the exchange capability has been recovered for the duration of T2 by the exchange capability detection unit 113,
The link service control unit 114 resumes the exchange processing between the telephone terminals 41 to 4m and between the telephone terminals 41 to 4m and the public network NW.
14n is resumed.

On the other hand, each of the applications 141 to 14n
Then, when activating the link service with the server CPU 11, the switch in the link service control unit 114 is referred to to determine whether or not the link service is permitted. Here, when the link service is “No”, each application 141 to 1
At 4n, a suspension process corresponding to those services is executed.

The operation when an outside line is transmitted from the telephone terminal 41 will be described. It is assumed that, when a speaker makes an outgoing call at the telephone terminal 41, for example, the telephone number of the other party is key-input. Then, the telephone number data is transferred from the extension interface unit 35 in the telephone exchange 3 to the exchange CPU 31 via the data highway 32. Then, after the telephone number data is transferred to the control line interface unit 33 by the driver unit 312 of the exchange CPU 31,
The data is transferred from the control line interface unit 33 to the server CPU 11 via the control bus 2 and the control line interface unit 15.

The server CPU 11 treats the telephone number data as if it had been input from an extension telephone connected to the server apparatus 1, and treats the external telephone number via the control bus 2 and the data highway 32. This is notified to the line interface unit 36. Then, the line interface unit 36 makes a call to the public network NW.
Then, when the partner terminal user answers the incoming call, the line interface unit 3 to which the partner terminal is connected is connected.
6 and the extension interface unit 35 to which the calling telephone terminal 41 is connected, a communication link is formed via the PCM highway 37 in the telephone exchange 3, and thereafter the telephone terminal 41 is connected via this communication link. A call can be made between the terminal and the partner terminal. At this time, control of the telephone terminal 41 is executed by the terminal control unit A112.

It should be noted that the server CPU 11 sends the exchange CPU 3
When the instruction information for the exchange processing has been notified to 1, the above-described processing procedure is executed by the exchange CPU 31 and the terminal control unit B 311 therein.

As described above, according to the above embodiment,
When the server CPU 11 of the server apparatus 1 detects that the processing time required for controlling the exchange processing has fallen below the required time, an instruction for executing the exchange processing via the control bus 2 to the telephone exchange apparatus 3. The information is transmitted, and in response to the instruction information, the telephone exchange 41
Exchange connection processing between the telephone terminals 41 to 4m and the public network NW is performed without control of the server CPU 11. For this reason, even if the number of applications operating in the server device 1 increases, the other applications are not affected, thereby restricting the development of the application for the exchange processing and the realization of the service linked with the application. Need not be given.

In the above embodiment, when the server CPU 11 of the server apparatus 1 detects that the processing time required for controlling the exchange processing is shorter than the required time, the service activation from each of the applications 141 to 14n is started. The request reception process is stopped. For this reason, even if the number of applications running in the server device 1 increases, it is not necessary to increase the processing capacity of the server CPU 11 in accordance with the increase, thereby reducing the load on the server CPU 11 and maintaining the exchange processing capacity. it can.

Further, the server CPU 11 of the server device 1
In, when the processing capacity returns to normal, the comprehensive exchange processing by the server device 1 is automatically restored. For this reason, for example, when the processing capacity of the server CPU 11 of the server device 1 temporarily decreases and then returns to normal,
The exchange control by the server device 1 can be quickly restored without waiting for the restoration operation of the maintenance staff. Also, the server CP
When the processing capacity of U11 returns to normal, it is possible to quickly restore the link service with each of the applications 141 to 14n.

The present invention is not limited to the above embodiment. For example, when the processing capacity of the server CPU 11 falls below the predetermined capacity, the server CPU 11
May be transmitted only via the control bus 2 to the terminal device. Also, the server CPU1
1 means that if your processing capacity falls below a certain level,
The cooperative service processing with each of the applications 141 to 14n may be simply stopped.

In the above-described embodiment, an example in which the exchange capability detection unit 113 and the linked service control unit 114 are provided in the server CPU 11 of the server device 1 has been described. The detection unit 113 and the linked service control unit 114 may be provided so that the external device executes the processes of the exchange capacity detection unit 113 and the linked service control unit 114.

In addition, the type of telephone terminal, the configuration of the switching device, the configuration of the server device, the connection configuration between the switching device and the server device, and the like can be variously modified without departing from the gist of the present invention.

[0048]

As described in detail above, according to the present invention,
In a system in which a switching device is connected to a server device, even if the number of applications running in the server device increases, the switching processing capacity can be maintained without restricting the development of the application or the realization of the service linked with the application. Exchange service can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of an exchange system according to the present invention.

FIG. 2 is a flowchart showing a control procedure of a server CPU shown in FIG.

FIG. 3 is a view for explaining a state of processing capacity of a server CPU shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Server apparatus, 2 ... Control bus, 3 ... Telephone exchange apparatus, 11 ... Server CPU, 12 ... Internal bus, 13 ... Storage device, 14 ... Application unit, 15 ... Control line interface part (Control line I / F), 31: exchange CPU 32: data highway 33: control line interface (control line I / F) 34: time switch (TSW) 35: extension interface 36: office interface 37: PCM highway 41 to 4 m: telephone terminal, 111: service control unit, 112: terminal control unit A, 113: exchange capability detection unit, 114: linked service control unit, 131: database, 132: functional module, 141 to 14n: application, 311 ... terminal control unit B, 312 ... driver unit, NW ... public network.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shingo Kimura 3-1-1 Asahigaoka, Hino-shi, Tokyo Inside the Toshiba Hino Factory Co., Ltd. (72) Inventor Fumio Shibasaki 3-1-1 Asahigaoka, Hino-shi, Tokyo F-term in Toshiba Hino Plant (reference)

Claims (6)

[Claims] 1. A server device in which a processor processes a plurality of applications for performing predetermined functional operations in parallel with a switching device connected to a plurality of communication lines to which terminal devices can be connected. In a switching system for performing a switching process between a plurality of communication lines connected to the switching device based on control from a processor, a processing capability detecting unit for detecting a processing capability of a processor of the server device; Processing sharing means for causing the switching device to execute the switching process between the plurality of communication lines without the control of the server device, when it is detected that the processing capability of the processor has decreased by a predetermined capability or more. An exchange system comprising: 2. A server device in which a processor processes a plurality of applications for performing a predetermined function operation in parallel with a switching device connected to a plurality of communication lines to which terminal devices can be connected, respectively. In a switching system for performing a switching process between a plurality of communication lines connected to the switching device based on control from a processor, a processing capability detecting unit for detecting a processing capability of a processor of the server device; And a processing stopping means for stopping a linked service processing with the plurality of applications when it is detected that the processing capacity of the processor has decreased by a predetermined capacity or more. 3. A server device in which a processor processes a plurality of applications for performing predetermined function operations in parallel with a switching device connected to a plurality of communication lines to which terminal devices can be connected, respectively. In a switching system for performing a switching process between a plurality of communication lines connected to the switching device based on control from a processor, a processing capability detecting unit for detecting a processing capability of a processor of the server device; When it is detected that the processing capacity of the processor has decreased by a predetermined capacity or more, processing stop means for stopping the linked service processing with the plurality of applications; and the processing capacity detection means determines that the processing capacity of the processor is predetermined. If it is detected that the capacity has decreased beyond the capacity, the switching process between the plurality of communication lines is performed beforehand. An exchange system comprising: a process sharing unit that is executed by the exchange device without control of the server device. 4. The processing capability detecting means according to claim 1, wherein the processor has a processing time required for controlling the exchange processing.
The switching system according to any one of claims 1 to 3, wherein it is determined that the processing capacity has decreased when the predetermined time has elapsed. 5. The apparatus further comprises recovery monitoring means for monitoring a recovery state of a processor of the server device, and recovery means for recovering exchange control by the server device according to the recovery state detected by the recovery monitoring means. 4. The switching system according to claim 1, wherein 6. A recovery monitoring means for monitoring a recovery state of a processor of the server device, and a processing executing means for executing a linked service processing with the plurality of applications according to the recovery state detected by the recovery monitoring means. The switching system according to claim 2 or 3, further comprising: