JP5115702B2 - Telephone exchange system, resource sharing method in telephone exchange system, and telephone exchange - Google Patents

Description

  The present invention relates to a telephone exchange system, a resource sharing method in a telephone exchange system, and a telephone exchange, and more particularly to a telephone exchange system including a plurality of telephone exchanges, a resource sharing method in a telephone exchange system, and a telephone exchange.

  In recent years, with the advance of technology, IP telephones using IP (internet protocol) technology, IP call services, and the like have become widespread.

  And, telephone exchanges compatible with such telephones have been subjected to various processes due to multifunctional telephones and increased subscriptions to lines connected to the Internet.

Therefore, Patent Document 1 describes a resource sharing method by a plurality of routers.
JP 2000-69087 A

  By the way, when making a networking connection for the purpose of adding these telephones, there are cases where a large number of CID (caller identification delivery) compatible trunks or a single telephone with a CID function are installed or set.

  In this case, it is necessary for the telephone exchange system to always connect resources, and there is a problem that it is difficult to secure sufficient resources in the telephone exchange system.

  Here, CID is caller identification information, which is information transmitted to a telephone exchange when a call is made as information for identifying a sender.

  And since there is a limit on the number of resources that can be used in the telephone exchange, depending on the state that one user is using the telephone, even if another user wants to use the telephone, the request cannot be answered. There was a problem.

  In addition, when setting up a telephone exchange and a telephone, there is a problem that a high level of skill is required for system design.

  Further, in the telephone exchange system that performs the related Networking connection, the system is operated separately even when the resources of the system-1 are insufficient due to the configuration and the system-2 has sufficient resources.

  As a result, there is a problem that a telephone exchange system that is not easy to use is configured.

  Therefore, the present invention has been made in view of the above problems, and in response to a request for a system resource of a certain telephone exchange, another telephone exchange responds to Networking, thereby sharing the resources possessed by each other. An object of the present invention is to realize a telephone exchange system that can be used effectively, a resource sharing method in the telephone exchange system, and a telephone exchange.

Telephone exchange system according to the present invention comprises at least a second telephone switching system which Ru and a telephone exchange of which is connected to the first telephone exchange and before Symbol first telephone exchange, said first telephone switch When a certain telephone or trunk connected to the network starts a certain type of processing, the number of telephones and trunks using the arithmetic unit of the first telephone exchange is summed to the number. The total number of telephones or trunks to be combined is expected to exceed the number of resources of the computing unit provided in the first telephone exchange, and the computing unit provided in the second telephone exchange In order to perform the certain type of processing related to the certain telephone or trunk using the unused resource of the arithmetic unit included in the second telephone exchange when there is an unused resource. Characterized in that it comprises means.

Resource sharing method according to the present invention, at least, a resource sharing method in the second telephone switching system in which Ru and a telephone exchange of which is connected to the first telephone exchange and before Symbol first telephone exchange, the first When a certain telephone or trunk connected to one telephone exchange tries to start a certain type of processing, the number of telephones and trunks using the arithmetic unit of the first telephone exchange In addition, it is expected that the total number obtained by combining the number of telephones or trunks that are to be started exceeds the number of resources of the computing unit provided in the first telephone exchange, and When there is an unused resource of the computing unit provided, the certain telephone or trunk is used by using the unused resource of the computing unit included in the second telephone exchange. It characterized by having a procedure for another processing.

A first telephone exchange according to the present invention is a first telephone exchange in a telephone exchange system including at least a first telephone exchange and a second telephone exchange connected to the first telephone exchange, When a certain telephone or a trunk connected to the first telephone exchange is about to start a certain type of processing, the telephone and the trunk using the arithmetic unit of the first telephone exchange are combined. When the total number obtained by adding the number of telephones or trunks to be started is expected to exceed the number of resources of the computing unit provided in the first telephone exchange, the second After confirming whether or not there is an unused resource of the computing unit included in the telephone exchange, the certain telephone or a certain transaction is used for the unused resource of the computing unit included in the second telephone exchange. Characterized in that it comprises means for causing the processing of the certain type of the.

A second telephone exchange according to the present invention is a second telephone exchange in a telephone exchange system including at least a first telephone exchange and a second telephone exchange connected to the first telephone exchange, When a certain telephone or trunk connected to the first telephone exchange is about to start a certain type of processing, the telephone and trunk using the arithmetic unit of the first telephone exchange are combined. It is expected that the total number obtained by adding the number of telephones or trunks to be started to exceed the number of resources of the computing unit provided in the first telephone exchange and the second telephone When there is an unused resource of the computing unit included in the exchange, the unused resource of the computing unit included in the second telephone exchange is used to Characterized in that it comprises means for performing another process.

  According to the present invention, this telephone exchange system can improve the convenience by sharing the resources of the telephone exchange and allowing the resources of other telephone exchanges to execute processing related to the load of a certain telephone exchange. Can be made.

  Therefore, in response to a request for system resources of a certain telephone exchange, another telephone exchange responds with Networking, so that the telephone exchange system can share the resources that the mutual exchanges have and can be used effectively. A resource sharing method and a telephone exchange can be realized.

  The telephone exchange system according to the present invention is the entire network-connected system in a telephone exchange system having a plurality of telephone exchanges, and is a mechanism for sharing the resources of the telephone exchange.

  Therefore, this telephone exchange system can allocate resources from the system-2 even when the resources of the system-1 are lost in the configuration of the telephone exchange system as shown in FIG. Effective utilization can be achieved.

  Thus, in the telephone exchange system according to the present invention, even when there are no resources in the telephone exchange, resources are secured by inquiring other telephone exchanges about the availability of free resources, and virtual resource management is used in a well-balanced manner. Can function.

Next, Embodiment 1 for carrying out the present invention will be described in detail with reference to the drawings.
(Embodiment 1)
(1) Configuration of Telephone Exchange System FIG. 1 shows a configuration of a telephone exchange system including two telephone exchanges as Embodiment 1 according to the present invention.

  The telephone exchange system shown in FIG. 1 includes system-1 and system-2.

  The system-1 includes a central processing unit (CPU) 100, a storage unit 110, a call control unit 120, a DSP (digital signal processor) unit 130, a single telephone control interface unit 140, and a trunk interface unit 150. ing.

  The call control unit 120 includes a networking control unit 121 and a resource control unit 122.

  In addition, the system-1 is connected to the telephone network 400 via the Trunk network 300 formed by Trunk-A, Trunk-B, Trunk-C, Trunk-D, Trunk-E, and Trunk-F.

  The CPU 100 is a processor that controls the entire system-1.

  The storage unit 110 stores various programs and data and functions as a work area when executing the programs.

  In the call control unit 120, the networking control unit 121 controls the networking connection with respect to the telephone call, and the resource control unit 122 controls the resources of the DSP unit 130.

  The DSP unit 130 functions as a CID (caller identification delivery) for acquiring caller identification information, a DTMF (dual tone multi-frequency) Tone Receiver or Tone Detector for performing a DFT (discrete fourier transform) operation, and the like.

  The single telephone control interface unit 140 is connected to a plurality of single telephones, and is connected to the single telephones A to E, the single telephone M, or the single telephone X.

  The Trunk interface unit 150 is connected to the telephone network 400 existing outside via the Trunk network 300.

  The networking interface unit 160 is connected to the system-2 via the node path 500, and plays a role of a relay function for relaying between the system-1 and the system-2.

The system-2 has the same configuration as the system-1. However, in order to identify it from the system-1, even if it is the same configuration, a reference numeral different from that of the system-1 is given.
(2) Operation of Resource Sharing Processing of Telephone Exchange System Next, the operation of resource sharing processing of the telephone exchange system shown in FIG. 1 will be described with reference to the flowcharts of FIGS.

  First, Trunk-A, Trunk-B, Trunk-C, Trunk-D, Trunk-E, and Trunk-F forming the Trunk network 300 acquire the CID via the telephone network 400 and set the reception to the system-1. .

  This Trunk network is assumed to be formed of six Trunks.

  Then, in the system-1 that has received the CID, the CPU 100 performs the reception setting of the CID service that the DSP unit 130 executes (step S11).

  Here, for example, when the Tone Detector for identifying the caller and performing the DFT operation according to the caller is set for each of the single phones A to E in FIG. It is used in a state of being always connected to 130.

  Also, the system-1 can use 16 resources.

  Therefore, since the trunk network 300 is formed of six trunks, it uses six resources and five single telephones A to E (single telephones with a CID function) use five resources. become.

  That is, 16 available resources use 11 resources by 6 CID-compatible trunks and 5 single telephones with a CID function, and the DSP unit 130 has 5 free resources.

  Therefore, when adding a single telephone, five units corresponding to available resources can be connected. However, if an attempt is made to connect the sixth and subsequent single telephones, there will be a shortage of resources.

  In this case, the single telephones A to E with the CID function always connect the DSP unit 130 as a resource, but if the CID is not set to the additional single telephone to be connected, the number of the telephones that can be simultaneously talked is five. However, it is possible to install six or more individual telephones.

  Accordingly, in the system-1, when six or more simple telephones are installed, up to five telephones can be talked at the same time. However, since there are no resources of the DSP unit 130 for executing DFT calculation and the like after the sixth telephone, the DSP The unit 130 cannot execute the DFT operation or the like.

  Therefore, the CPU 100 uses the resource control unit 122 to monitor the resources of the DSP unit 130 and determines whether there are free resources of the DSP unit 130 (step S12).

  Here, when the DSP unit 130 runs out of free resources, the CPU 100 determines whether or not the system-1 has a networking connection (step S13).

  If the CPU 100 determines that the network-1 has a networking connection, the networking control unit 121 determines whether there is a node that has not transmitted a resource request message (step S14).

  Here, the Node refers to the system-2 connected to the system-1 via the node path 500, and means a telephone exchange that operates in the same manner as the system-1.

  If the networking control unit 121 determines that there is no node that has not transmitted the resource request message, it determines that a resource to replace the DSP unit 130 could not be secured, and proceeds to step S15 to process the waiting queue. I do.

  This waiting queue refers to, for example, checking whether or not an empty resource is generated in the DSP unit 130 at predetermined time intervals (for example, 1 minute).

  If free resources of the DSP unit 130 cannot be secured during the waiting queue process, the DSP unit 130 cannot execute a DFT operation or the like, so that a call cannot be made or received.

  On the other hand, in the networking control unit 121, when there is a node that has not transmitted the resource request message, the CPU 100 inquires to the system-2 via the networking interface unit 160 (step S17).

  On the other hand, in step S12, when there is a free resource in the DSP unit 130, the CPU unit 130 controls the resource control unit 122 to execute the DSP unit 130, receives the CID, and performs the DFT operation. This can be done (step S16).

  As described above, in the system-1, the CPU 100 transmits a resource request message to the system-2 from the resource control unit 122 via the networking control unit 121 and the networking interface unit unit 160.

  Thereby, in this embodiment, when the resource control unit 222 of the system-2 sends back a free resource to the system-1, the system-1 sends the DSP unit 230 of the system-2 based on the response result. Can be used and free resources can be used.

  Here, for example, a case will be described in which when the single telephone M is OFF HOOK (that is, when the handset is picked up), the system-1 resource is exhausted.

  The resource control unit 122 of the system-1 sends a resource request message to the networking interface unit unit 160 via the networking control unit 121.

  The Networking interface unit 160 transmits a resource request message to the connected Node (that is, corresponding to the system-2 in FIG. 1) (Step S17 in FIG. 2).

  Receiving the resource request message, the networking interface unit 260 of the system-2 sends the request message to the resource control unit 222 via the networking control unit 221 (step S21 in FIG. 3).

  Next, the resource control unit 222 investigates free resources of the DSP unit 230 in its own system (step S22 in FIG. 3), and sends a reply message as a reply to the Networking interface unit unit 260 via the Networking control unit 221. .

  Here, for example, when “there is a free resource” in the DSP unit 230 of the system-2, the resource management unit unit 222 reserves and secures the free resource (step S23 in FIG. 3).

  Upon receiving this reply message, the Networking interface unit 260 returns a response to the effect that “there are free resources” to the Networking interface unit 160 of the system-1 (step S24 in FIG. 3).

  On the other hand, in step S22, the resource control unit 222 of the system-2 creates an answer that “there is no free resource” when the DSP unit 230 has no free resource (step S25 in FIG. 3). .

  In step S25 of FIG. 3, the networking connection unit 260 returns a response “no free resource” to the networking interface unit 160 of the system-1.

  Upon receiving the reply message, the networking interface unit 160 sends the content of the reply message to the networking control unit 121, and the networking control unit 121 analyzes the reply message (step S31 in FIG. 4).

  The networking control unit 121 analyzes the reply message and determines whether or not there is a free resource in the DSP unit 230 of the system-2 (step S32 in FIG. 4).

  Here, when the reply is “no free resource” of the resource in the DSP section 230 of the system-2, the process returns to step S14 in FIG. 2 to determine whether there is another Node, and the system Send a resource request message to

  On the other hand, if the DSP unit 230 of the system-2 receives a response indicating that “there is an available resource”, the networking control unit 121 of the system-1 returns a response message to the resource control unit 122. (Step S33 in FIG. 4).

  Upon receiving the response message, the resource control unit 122 analyzes the investigation result added to the response message (step S34 in FIG. 4).

  Then, the resource control unit 122 sends a resource connection request to the Networking interface unit 160 via the Networking control unit 121 and connects to a single telephone port (not shown) (Step S35 in FIG. 4).

  Further, the resource control unit 122 transmits the resource type of the single telephone M and the CID transmission data to the Networking interface 160 via the Networking control unit 121 (Step S36 in FIG. 4).

  Then, the Networking interface unit unit 160 sends a message to the Networking interface unit unit 260 of the system-2 (Step S37 in FIG. 4).

  Upon receiving this message, the Networking interface unit 260 sends this message to the resource control unit 222 via the Networking control unit 221 and analyzes the message returned from the system-1 (step S41 in FIG. 5).

  The resource control unit 222 determines whether or not the message returned from the Networking interface unit unit 160 is a resource connection request (step S42 in FIG. 5). If it is a resource connection request, the process proceeds to step S43.

  When the resource control unit 222 receives a resource connection request, the resource control unit 222 sets a resource type such as Tone Detector or DTMF Tone Receiver transmitted from the system 1 in the DSP unit 230.

  Then, the CID signal including the CID data is sent to the DSP unit 230 (step S43 in FIG. 5).

  As a result, the resource control unit 222 can use the DSP unit 230 of the system-2 by connecting the port of the system-1 and the resource DSP unit 230 by Path connection.

  Thus, the resource control unit 222 connects the single telephone M of the system-1 and the resource of the system-2 via the node Path 500 between the system-1 and the system-2.

  As a result, the single telephone M can use the DSP unit 230 of the system-2, so that it can perform a DFT operation and can function as a PB Tone Detector or a DTMF Tone Receiver.

  It has been described that the telephone exchange system according to the present invention operates as described above for the purpose of sharing the resources of the telephone exchange mutually.

  Here, FIG. 6 and FIG. 7 show sequence diagrams of the operation at the time of OFF HOOK of the single telephone and the operation of the single telephone with a CID function or the telephone line described in the telephone exchange system of the present embodiment.

The sequence diagram when the single telephone in FIG. 6 is OFF HOOK and the sequence diagram of the single telephone with a CID function in FIG. 7 are for each case where each telephone exchange uses its own DSP unit to perform each process. The flow in a telephone exchange is shown.
(3) Effects of the telephone exchange system according to the present embodiment According to the present embodiment, this telephone exchange system is used even in a region where there are many analog lines or single telephones, even when sufficient resources cannot be secured. By sharing resources, CID and Tone Detector can be used effectively.

  In the past, when making a networking connection setting, it is necessary to make a setting in consideration of securing resources, and skill such as system configuration is required for setting.

However, according to the present embodiment, this telephone exchange system does not require special skills regarding resources, and the degree of freedom is improved, so that convenience can be improved for telephone line operators and users.
(4) Other Embodiments In this embodiment, a telephone exchange system is formed from the system-1 and the system-2. However, the present embodiment is not limited to this, and a plurality of telephone exchanges can be used as a telephone exchange system. May be formed.

  In this embodiment, the DSP unit 130 and the DSP unit 230 perform DFT operations such as CID and Tone Detector. However, the present embodiment is not limited to this, and the DSP unit performs an arithmetic processing on the digital signal. Anything to do.

  In this embodiment, system-1 forms the first telephone exchange and system-2 forms the second telephone exchange. However, the present embodiment is not limited to this, and is realized by other configurations. You may make it do.

  In this embodiment, the CPU 100 forms a processing content setting unit, the resource control unit 122 forms a margin inquiry unit and an allocation information transmission unit, and the DSP unit 130 forms an arithmetic processing unit.

  Further, the resource control unit 222 forms a margin presence / absence determination unit, the networking control unit 221 forms an inquiry response unit, and the DSP unit 230 forms an arithmetic processing proxy unit.

  However, the present embodiment is not limited to this, and may be realized by other configurations.

In Embodiment 1 which concerns on this invention, it is a block diagram which shows the structure of a telephone switching system. In Embodiment 1 which concerns on this invention, it is a flowchart in the case of making an inquiry from system-1 to system-2. In Embodiment 1 which concerns on this invention, it is a flowchart in the case of returning a resource condition from the system-2 to the system-1. In Embodiment 1 which concerns on this invention, when a reply is received from the system-2, it is a flowchart in case the system-1 responds. In Embodiment 1 which concerns on this invention, when a response is received from the system-1, when a system-2 performs a connection process, it is a flowchart. In Embodiment 1 which concerns on this invention, the sequence at the time of an independent telephone is OFF HOOK is shown. In Embodiment 1 which concerns on this invention, the sequence of the independent telephone with a CID function is shown.

Explanation of symbols

100, 200 CPU
110, 210 Storage unit 120, 220 Call control unit 121, 221 Networking control unit 122, 222 Resource control unit 130, 230 DSP unit 140, 240 Single telephone control interface unit 150, 250 Trunk interface unit 160, 260 Networking interface unit 300 Trunk Network 400 Telephone network 500 node Path

Claims (8)

At least, a first telephone switch to the previous SL second telephone switching system which Ru and a telephone exchange of which is connected to a first telephone exchange,
When a certain telephone or trunk connected to the first telephone exchange is about to start a certain type of processing, the telephone and trunk using the arithmetic unit of the first telephone exchange are combined. And the total number of telephones or trunks to be started is expected to exceed the number of resources of the computing unit provided in the first telephone exchange, and the second telephone When there is an unused resource of the computing unit included in the exchange, the unused resource of the computing unit included in the second telephone exchange is used to make the certain type of the certain telephone or trunk. A telephone exchange system comprising means for performing processing . The telephone exchange system according to claim 1, wherein
When starting the certain type of processing relating to the certain telephone set or the certain trunk using the unused resources of the arithmetic unit included in the second telephone exchange, the first telephone exchange determines the a second telephone exchange, further telephone exchange system that is characterized in that it comprises means for transmitting information including information representing at least the type. The telephone exchange system according to claim 1 or 2,
While performing the certain type of processing related to the certain telephone or trunk using the unused resources of the arithmetic unit included in the second telephone exchange, the connection to the first exchange is maintained. The certain telephone or the certain trunk further comprises means for using the unused resources of the computing unit included in the second telephone exchange via the first exchange . that phone exchange system. At least, a resource sharing method in the second telephone switching system in which Ru and a telephone exchange of which is connected to the first telephone exchange and before Symbol first telephone exchange,
When a certain telephone or trunk connected to the first telephone exchange is about to start a certain type of processing, the telephone and trunk using the arithmetic unit of the first telephone exchange are combined. And the total number of telephones or trunks to be started is expected to exceed the number of resources of the computing unit provided in the first telephone exchange, and the second telephone When there is an unused resource of the computing unit included in the exchange, the unused resource of the computing unit included in the second telephone exchange is used to make the certain type of the certain telephone or trunk. A resource sharing method comprising a procedure for performing processing . The resource sharing method according to claim 4, wherein
When starting the certain type of processing relating to the certain telephone set or the certain trunk using the unused resources of the arithmetic unit included in the second telephone exchange, the first telephone exchange determines the a second telephone exchange, characterized and to Brighter source sharing method further comprising the step of transmitting information including information representing at least the type. The resource sharing method according to claim 4 or 5, wherein
While performing the certain type of processing related to the certain telephone or trunk using the unused resources of the arithmetic unit included in the second telephone exchange, the connection to the first exchange is maintained. The certain telephone or the trunk further includes a procedure for using an unused resource of an arithmetic unit included in the second telephone exchange via the first exchange . Ruri source sharing method. A first telephone exchange in a telephone exchange system comprising at least a first telephone exchange and a second telephone exchange connected to the first telephone exchange;
When a certain telephone or a trunk connected to the first telephone exchange is about to start a certain type of processing, the telephone and the trunk using the arithmetic unit of the first telephone exchange are combined. When the total number obtained by adding the number of telephones or trunks to be started is expected to exceed the number of resources of the computing unit provided in the first telephone exchange, the second After confirming whether or not there is an unused resource of the computing unit included in the telephone exchange, the certain telephone or trunk is used for the unused resource of the computing unit included in the second telephone exchange. A first telephone exchange comprising means for causing the certain type of processing to be performed . A second telephone exchange in a telephone exchange system comprising at least a first telephone exchange and a second telephone exchange connected to the first telephone exchange;
When a certain telephone or trunk connected to the first telephone exchange is about to start a certain type of processing, the telephone and trunk using the arithmetic unit of the first telephone exchange are combined. It is expected that the total number obtained by adding the number of telephones or trunks to be started to exceed the number of resources of the computing unit provided in the first telephone exchange and the second telephone When there is an unused resource of the computing unit provided in the exchange, the unused resource of the computing unit included in the second telephone exchange is used to make the certain type of the certain telephone or trunk. A second telephone exchange comprising means for performing processing .

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