JPH0614054A - Exchange system - Google Patents

Abstract

PURPOSE:To serve various service by providing an exchange and a voice storage device to the system. CONSTITUTION:The system is provided with an exchange SW accommodating plural communication lines and exchanging information between the plural communication lines based on the destination. Then the system is provided with one or two information storage devices or over connecting to the exchange SW and storing the information transferred from the exchange. The exchange is provided with a judging means whose transfer opportunity of entered information is designated in advance and judging whether or not the transfer opportunity comes and with a transfer means transferring the entered information to the said information storage device in place of exchanging the information to the destination upon the designated opportunity of the transfer.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a communication system,
In particular, it relates to a switching system provided with a voice storage device for storing voice messages.

[0002]

2. Description of the Related Art As a conventional technique in a voice storage device, a message to be stored is temporarily stored in a memory in a digital form, and is delivered to a party decided at a required time at a non-concurrent time. Is assigned to each terminal and has a mailbox corresponding to each terminal.

Further, regarding the system configuration and the switching method when the number of terminals in the voice storage device increases, there is a technique disclosed in Japanese Patent Laid-Open No. 3-149949. The prior art includes at least first and second message processing means for storing and reproducing a message, and switching means for selecting the message processing means and performing routing processing.
Message processing means to process the message.

[0004]

In the above-mentioned prior art, the switching means arbitrarily selects the message processing means according to the load condition of the message processing means, and the selected message processing means stores the call from the subscriber. However, when there is a message accumulated in the message processing means, the service to the subscriber is not considered.

In order to solve the above problems, the present invention provides a switching system that can provide various services to subscribers.

[0006]

The above object is to provide a switching system having a plurality of communication lines and exchanging information between the plurality of communication lines on the basis of a destination. , The information exchange device for accumulating the information transferred from the exchange, and the exchange has a trigger for the transfer of the input information designated in advance, and whether or not it is the designated trigger for the transfer. This can be achieved by having a judgment means for judging the above, and a transfer means for transferring the input information to the information storage device instead of exchanging the input information when the designated transfer is triggered. The determination means uses the timing of transfer as when there is no response when calling the destination for delivering the input information, or when the destination for delivering the input information is called for a predetermined time. Can be when there is no response. Further, the transfer may be triggered when the destination for delivering the input information is a previously designated destination.

Further, the exchange has a storage means for storing the identification information of the exchange destination corresponding to the destination, and a registration means for registering in the storage means, and the judging means stores the trigger of the transfer in the storage. The means may be referred to and the exchange destination corresponding to the destination of the input information may not be registered.

The exchange further includes a radio base station that wirelessly communicates with the mobile terminal, and the registration means registers the position information of the mobile terminal as identification information of the exchange destination.

Furthermore, the exchange further comprises notifying means for notifying the terminal that the information is accumulated when the information addressed to the terminal is accumulated in the information accumulating device, and the notifying means is characterized in that When the location information of the registration means is registered, the registered mobile terminal is notified that the information addressed to the terminal is stored.

The notifying means notifies one or more predesignated destinations corresponding to the destinations of the input information, notifies at a predesignated time, and when notifying, relates to the input information. Information can be added and notified. The notification means, as the information regarding the input information, storage area information indicating an area in which information of the information storage device is stored, a sender number, a sender name, and
At least one of the predetermined service numbers for accessing the information storage device is notified.

[0011]

In the exchange system including the above-mentioned information storage device, the trigger for transfer of the input information is designated in advance, and the judging means judges whether or not it is the designated transfer trigger. If there is, the transfer means transfers the input information to the information storage device instead of exchanging it with a destination for delivering. The transfer is triggered when there is no response when the destination for delivering the input information is called, or when there is no response for a predetermined time. If the destination for delivering the input information is a destination designated in advance, the information may be directly transferred to the information storage device. Further, when the identification information of the exchange destination corresponding to the destination is stored in the storage unit, the determination unit refers to the storage unit as a trigger for the transfer and registers the exchange destination corresponding to the destination of the input information. When not done. In the case of further comprising a radio base station, the registration means registers the position information of the mobile terminal as identification information of the exchange destination, and when the exchange destination corresponding to the destination of the input information is not registered, the information is You may make it transfer to a storage device.

Further, the notification means notifies the terminal that the information is stored when the information addressed to the terminal is stored in the information storage device. As for the timing of the notification, if the notification is made at a predetermined time or if the location information of the mobile terminal is registered and the information addressed to the mobile terminal is stored, the information is stored. Notify the mobile terminal. When notifying, the notifying means adds information regarding the input information and notifies. As information regarding the input information, storage area information indicating an area in which information of the information storage device is stored, a sender number, a sender name, and a predetermined service number for accessing the information storage device. Of these, at least one piece of information is notified.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. First, the system configuration of the voice storage system will be described, and then the switching method, the transfer method between storage units, and various services will be described.

FIG. 1 shows the system configuration of the voice storage system in this embodiment, and FIG. 2 shows the specifications of the operating characteristics of each function.

In FIG. 1, a voice storage device is a voice storage unit 10 having one or more storage units for storing information.
And the information from the terminal is input to the voice storage unit 10
System control unit 1 of the control unit for controlling connection to
1 and. Further, the maintenance terminal device 12 is provided with an input unit that receives an input instructing the system control unit 11. A general-purpose workstation or a personal computer can be used as the maintenance terminal device 12, and an advanced man-machine interface such as color graphic display, Japanese language processing, and remote maintenance can be realized. The system control unit 11 includes a common line interface and a communication path interface for connecting to other exchanges in the network as external interfaces. In addition, a remote maintenance interface for remote maintenance is provided, and a maintenance terminal can be connected via a public network or a dedicated line. The system control unit 11 may use a private branch exchange having a switching function for concentrating and distributing. The voice storage unit 10 converts the input voice signal into an ADPC.
M (Adaptive Differential PCM) and CVSD (Continuou
sly Variable Slope Delta Modulation) and other signal processing to convert to digital value and store. The voice storage unit 10 may store digital signals other than voice. The voice storage unit 10 can have a dual redundant configuration. As a result, high reliability can be obtained by accumulating the input information in each of the duplicated voice accumulating units 10.

In the present embodiment, the function of concentrating / distributing the communication line and the function of storing voice are distributed, and the connection with the network can be made economical and flexible. In addition, the configuration of the voice storage unit 10 is a building block configuration, and the system is economically configured according to the required capacity from small capacity to large capacity.

Next, a connection form with another network will be described.

As a method of connecting a common line signal line between the voice storage device VSE and a switching device in another network such as a mobile relay switching device, as shown in FIG. Then, a common line signal line is provided. FIG. 4 shows the development of the network configuration with the increase of voice storage service traffic. In the initial stage of FIG. 4, a network configuration in which a telephone line and a signal line are provided for a specific exchange (plurality) is started. As the traffic of the voice storage service increases and the number of mobile relay exchanges to which the line is connected increases, the signal line can be provided via the common line signal exchange.

Next, detailed configurations and specifications of the system control unit 11 and the voice storage unit 10 shown in FIGS. 5, 6 and 7 will be described.

In FIG. 6, the system control unit 11
Is a common line signal control device for connecting one or more call line interfaces for connecting a call line and a common signal line of CCITT standard No. 7 common line signaling system to connect to another exchange of the network. It has one or more CSEs. As for the connection configuration with other exchanges, considering that it does not affect the existing signaling network and that protocol processing with reduced signal transfer overhead can be realized, as shown in FIG. Connect to. Set the signal line corresponding to the call line. Also,
As shown in FIG. 9, if a bundle of signal lines from opposite exchanges is called a route, 30 routes can be accommodated in the entire system, and a maximum of 8 signal lines can be accommodated in one route. In order to prevent an extreme delay in common line signal transfer, it is considered desirable to allocate one signal line to about 140 communication lines. Further, even if there is no backup signal line due to the redundant configuration, if one of the plurality of load-distributed signal lines fails, the other signal line can carry the traffic. The control of the common line signal is controlled by the CSIF and CSE corresponding to the signal link.
The device controls level 1 and level 2, and level 3 and level 4 are processed by the common signal device CC. Level 1 signal speed is CCITT standard JT-Q7
02, signal speed 4.8Kb / s or 48Kb / s
s can be selected, and the common line signal can be transmitted / received to / from the transmission device side at a bearer rate of 64 Kb / s of a digital signal. The signal format is (6 + 2) envelope format, F bit is "0", S bit is fixed to "1", and encoding is CI.
As the cable I, a TD bus cable can be used. The signaling link is managed in a usable / unusable state, and the unusable state is distinguished between a failure and a stop due to a request from the test / maintenance system. When the signal network function receives a link error (excessive error rate, excessive response delay) from the lower level (signal link function), it disables the corresponding signal link, and stops the use of the abnormal link for the upper level. To report. The signaling network function can carry the requested traffic over other signaling links until it is signaled by the lower levels that the link is normal. As a function of the ISDN user unit, the CCITT standard No. is basically used for the call control interface for connecting the voice storage device and the exchange.
7 common line signaling system ISDN user unit can be applied.

FIG. 11 is a block diagram of the audio storage unit. In FIG. 11, a voice storage unit 10 (VS
U) telephone line is maximum 32,64,9 per unit
You can select any of 6 lines. Further, the system control unit (SCU) can accommodate up to 11 VSUs. Therefore, the voice storage device has a maximum communication line of 1,05
It is possible to accommodate 6 lines. A digital trunk (DT) is used as the communication line with the exchange on the network, and it is possible to accommodate a maximum of 4,080 ch of the communication line. Common line signal link capacity is system control unit (SCU)
Can accommodate up to 60 common signaling links. Therefore, when the common line signal link is duplicated, it is possible to connect 30 opposites. As for the mailbox capacity (the number of voice message subscribers), a maximum of 20,000 mailboxes can be registered for each voice storage unit (VSU). Therefore, up to 11 VSUs can register 220,000 mailboxes. Accordingly, the system control unit (SCU) is capable of converting a maximum of 220,000 subscriber (subscriber) numbers and mailbox numbers.

The voice storage unit also has storage means such as a magnetic disk drive (HDD). The voice is stored as digitized data in the HDD in the voice storage unit. In the case of the 24 Kbps CVSD system, one unit has a maximum storage capacity of 500 hours, and 11 units can store a maximum of 5,500 hours of voice. This system adopts a parallel operation method with multiple voice storage units, adopts a complete duplex configuration of the voice storage HDD in each unit, optimizes data storage by deleting silent parts, and automatically processes 24 Kbps CVSD voice signals. It may have a gain control function.

As the maintenance terminal device 12, the interface between the system control unit and the maintenance terminal device is RS232.
-C standard interface can be used for remote maintenance using a public or private network via a modem. Further, the communication speed between the system control unit and the maintenance terminal device can be selected from a speed of 300 bps to 4,800 bps. The maintenance terminal device 12 has maintenance functions such as file updating and station condition setting. When updating the file of the system control unit (SCU), the spare device can be used to shorten the service stop time. To add or remove the network side interface (trunk) / voice storage unit interface of the system control unit, station data can be changed by issuing a command from the maintenance terminal device without stopping the system. Furthermore, the maintenance terminal device is shown in FIG.
The usage status can be displayed as shown in the line usage status display screen.

Next, a switching method in the system control unit 11 will be described. In this embodiment,
In order to realize a wide range of application areas from small capacity to large capacity by using multiple sound storage units as a building block configuration, the system control unit has a routing of which sound storage unit to select when connecting. Function is important. These are governed by an algorithm that assigns a voice storage unit to the first call to a new subscriber. When allocating a mail box to a new subscriber, an algorithm for uniquely obtaining a voice storage unit number from a contractor number is used in this embodiment, and this algorithm is hereinafter referred to as a fixed allocation method. In the fixed allocation method, the system control unit allocates the detection means for detecting the identification information of the terminal and the storage unit for each terminal according to a predetermined rule, and the information from the terminal is stored in the voice storage unit of the storage unit. The assigning means for outputting, the exchanging part for outputting the input information to a specific voice storage unit, the recording means for recording the correspondence between the terminal and the assigned voice storage unit, and the terminal for the input information are recorded by the terminal. Determining means for determining whether or not it is recorded in the means, and the allocating means allocates when the determining means determines that it is not recorded.
The terminal is an information transmitting / receiving terminal such as a telephone, and an identification number is assigned to each terminal in advance. The detecting means detects an identification number such as a contractor number as the identification information, and the allocating means assigns the identification number to the output destination voice storage unit and defines the voice storage unit in correspondence with the input identification number. To do.

Referring to FIG. 14, an example will be described below in which the number of remainders obtained by dividing the input identification number by the number of output destinations is defined as the identification number of the voice storage unit.

In FIG. 14, when there is a call input through the telephone line and the common line, the detecting means detects the identification information (ID) of the call (S141). It is determined whether the terminal of the input information is recorded in the recording means (S142). If it has been registered, it is connected to the identification number of the voice storage unit corresponding to the identification information registered in the storage means. If it is not registered, it is determined whether the voice storage unit is being added (S143). If the addition is not in progress, the voice storage unit number is calculated from the terminal identification number of the input information (S144). The number of remainders obtained by dividing the input identification number (ID) by the total number of the voice storage units of the output destination is set as the voice storage unit number of the output destination and registered in the storage means (S145). In this way, it is possible to perform fixed allocation by the allocation method defined in advance.
If an additional audio storage unit is being added, it is specified that it should be preferentially assigned as an output destination. For example, the added audio storage unit may be assigned as a predetermined number of output destinations, and after the predetermined number of assignments, output destinations may be assigned to all the audio storage units. That is, the number of times of termination is determined in advance,
The number of times of allocation is counted, and when the number of times of allocation reaches or exceeds the end number of times, normal allocation is restored.
In FIG. 14, if the addition is in progress, the voice storage unit number is calculated from the terminal identification number of the input information (S146). In this case, the number of remainders obtained by dividing the input identification number (ID) by the number of added voice storage units is used as the output destination voice storage unit number (S145). After the calculation, the total number of times of allocation is counted corresponding to the allocated additional voice storage unit (S147). The total number of counts is compared with the end count (S148), if it is within the range, it is allocated as it is, and when the end count is exceeded, the flag during addition is cleared (S149). FIG. 13 shows the state of allocation at the time of expansion. In Fig. 13, before expansion,
The number of remainders obtained by dividing the input identification number (ID) by the total number 3 of the voice storage units of the output destination is the voice storage unit number of the output destination. At the time of expansion, the expanded audio storage unit is assigned as an output destination for a predetermined number of times. in this case,
Since there are two additional voice storage units, the number of remainders obtained by dividing the input identification number (ID) by the number of output destination voice storage units 2 is taken as the output destination voice storage unit number. After allocating a predetermined number of times, output destinations are allocated to all audio storage units.

In this way, the load can be distributed among a plurality of voice storage units. As another method of fixed allocation, when there are 10 voice storage units, the last 1 digit (or any 1 digit) of the input identification number (ID) may be assigned as the voice storage unit number. That is, the allocating means is preliminarily regulated to output to the output destination to which the number equal to the evaluation value of the input identification number by the predetermined evaluation function is given. Further, which area of the voice storage unit is to be allocated is determined in advance and the allocated area is stored in the storage means.
The storage means may store the accumulated time, personal identification number, greeting message, and the like.

FIG. 10 shows a signal sequence for voice connection. FIG. 10 shows transmission / reception of signals for recording and reproducing voices stored from box registration among the exchange, the system control unit, and the voice storage unit. The number of the voice storage unit or the area number of the voice storage unit, which is fixedly assigned as described above,
Register as a box number. After registration, recording or playback is instructed by the PB signal such as service number,
Information can be accumulated in the voice accumulation unit and the accumulated information can be read out. Also, guidance may be sent out so that the operation is easy.

Next, a transfer method between the storage units will be described.

The system control unit 11 further comprises transfer means for transferring the information stored in the designated storage unit to another voice storage unit. The maintenance terminal device 12 receives the designation of the storage unit to be transferred, the instruction of the transfer, and the designation of the voice storage unit of the transfer destination, and instructs the system control unit 11. Transfers include transfer between voice storage units associated with division in the same system as shown in FIG. 15 and transfer via a network as shown in FIG. FIG. 23 shows a transfer sequence diagram of a voice message.

In FIG. 15 and FIG. 16, when performing the transfer, first, the voice storage unit number of the transfer destination is designated from the maintenance terminal device 12, and the allocation is registered in the storage means. Further, the area of the voice storage unit may be designated. Next, the source voice storage unit number is specified from the maintenance terminal device 12. The transfer means transfers the voice storage unit of the transmission source to the voice storage unit of the transfer destination. Prior to the transfer, the switch of the network may be instructed to stop the service of playing the stored message. The transfer is the identification number (I
Along with D), the voice storage unit number of the transfer destination can be added to make a call and start. When the path of the call line is connected, the transfer of the voice message is started. Further, it is possible to transfer the stored mailbox information such as accumulated time, personal identification number, and greeting previously input by the subscriber, which is stored in the storage means, through the common line.
After confirming the transfer, delete the message transferred to the transfer source voice storage unit. The erasing may be automatically performed by the transfer means after confirming the end of the transfer, or the maintenance terminal device 12
It may be erased by instructing from. The transfer means gives an instruction to restart the reproduction service together with the input identification number (ID) after opening the path of the communication line. Regarding the message storage service, during the transfer of the message, if the subscriber is assigned to the voice storage unit, another voice storage unit may be assigned and stored.

Further, as shown in FIG. 24, when an instruction is given to the exchange of the network to stop the service, the exchange can set and output a predetermined guidance message. In this case, the mailbox information may be transferred via the common line before the message is transferred, and then the message may be transferred after the path of the communication line is connected.

Further, in the transfer, the deterioration of the signal can be reduced by transferring the digital signal as it is through the digital line.

Next, in a switching system having a plurality of communication lines and exchanging information between the plurality of communication lines based on destinations, various services when the voice storage device is connected explain. Figure 21
22 and 22 are explanatory diagrams of the voice storage system service.

First, the transfer service to the voice storage device will be described. In an exchange in a network such as an ordinary public network, in addition to a normal exchange operation, a transfer means for transferring to an information storage device is provided, and a trigger for transfer at which time it is transferred to the information storage device is provided in advance. In advance, the determination means determines whether or not the designated transfer trigger has occurred, and when the designated transfer trigger exists, the input information is transferred to the information storage device instead of exchanging it with the destination. As a trigger for transfer, when there is no response when the destination is called, the input information is transferred to the information storage device,
Messages can be accumulated. Also, the transfer can be triggered when there is no response for a predetermined time when the input information is called to the destination. Furthermore, the transfer may be triggered when the input information is the destination specified in advance. Further, the exchange has a storage unit that stores identification information of the exchange destination corresponding to the destination, and a registration unit that registers the storage unit in the storage unit, and the determination unit sets a trigger for the transfer.
The storage unit may be referred to when the exchange destination corresponding to the destination of the input information is not registered.

The transfer operation will be described with reference to FIG. FIG. 17 shows the configuration of a message storage system for personal communication.

In FIG. 17, an exchange SW is an exchange in a network such as a public network, to which a plurality of terminals such as telephones are connected, and a control unit CNT for controlling the exchange is connected. Further, an information storage device (mail system) is connected. The exchange SW may be provided with the control unit CNT. Further, the control unit CNT is connected to a database DB that stores the identification number (ID) such as a subscriber's personal telephone number assigned to each subscriber and the terminal number of the connection destination. The database DB may be connected via a data network or a common line signaling network. Also, a mobile terminal or the like that communicates wirelessly can be connected as a terminal via a wireless base station. When connecting a mobile terminal, the database DB further stores the location information of the location of the mobile terminal. As the position information, a wireless base station identification number for indicating which wireless base station is under the control is stored. Regarding the location information, when the location information is notified from the mobile terminal, the location information of the mobile terminal is registered in the database DB as the identification information of the exchange destination by the registration means provided in the exchange.

In FIG. 17, destination ID = x from terminal A
Take the case where there is a call to communicate with the other party. The determination means included in the control unit CNT refers to the database DB and determines whether or not the destination ID = x is registered. If the destination ID = x is not registered in the database DB, the transfer means is instructed to transfer the input information to the information storage device. When the terminal A is connected to the information storage device, the information input from the terminal A can be stored in the information storage device. If the destination ID = x is registered in the database DB as the terminal number C, the destination ID = x is converted to the terminal number C and the terminal A is exchanged and connected to the destination C as a normal exchange operation. Also, ID =
When x is a mobile subscriber B, the database DB
The location information where B exists is registered in, and the wireless base station connects to the terminal B. Further, when the transfer is triggered when there is no response when the destination of the input information is called, the determining means calls the terminal numbers B to C and when there is no response, the determination means sets the information of the terminal A to the information. Connect to storage device. In this case, the data may be transferred when there is no response for a certain period of time.

Next, a service for notifying the subscriber that there is a message when the voice storage device has a message will be described. In this case, the exchange further has a notification means for notifying that the information is stored when the information is stored in the voice storage device. The notification means is a prespecified 1 corresponding to the destination of the input information.
Alternatively, two or more destinations can be notified. When notifying, the notifying means may add the information regarding the input information and notify. As the information regarding the input information, among the storage area information of the storage unit, the sender number, the sender name and a predetermined service number,
At least one piece of information can be notified. The notifying means may notify at a time designated in advance.
Further, when connecting the mobile terminal, the notification means, when the location information of the registration means is registered, notifies the registered mobile terminal that the information is accumulated. You can

The notification method will be described with reference to FIGS. 18 and 19. FIG. 18 shows a message storage system having a pager notification function, and FIG. 19 shows a message storage system having a mobile terminal notification function.

18 and 19, the exchange S
W, control unit CNT, information storage device, database DB,
The radio base station and mobile terminal have the same functions as those shown in FIG. In FIG. 18, a pager is a mobile terminal such as a pager, and is connected to an exchange through a pager base station.

In FIG. 18 and FIG. 19, instead of connecting the terminal A to the subscriber B, it is transferred to the voice storage device,
The message addressed to subscriber B from terminal A is stored in the voice storage device. The control unit CNT of the exchange, when transferred to the voice storage device, is designated in advance corresponding to the subscriber B 1
Alternatively, the notification means notifies the two or more destinations.
As a destination designated in advance, for example, a telephone number of a pager such as a pager terminal is set at the subscriber B in the database. When transferred to the voice storage device, the notification means notifies the set pager. Also, when calling a pager, as the information related to the input information, the storage area information indicating the area of the stored message, the sender number,
A caller name and a predetermined service number indicating a number for calling the voice storage device may be included in the notification and displayed on a pager. Also, if there is a designation to notify after a lapse of a certain period of time, the notification is made after a lapse of a certain period of time after transferring to the voice storage device.

Further, in the case of communicating with a mobile terminal via a radio base station as shown in FIG. 19, the registration means registers the position information when the mobile terminal notifies the position information. If there is a message in the voice storage device, the registered mobile terminal is notified that the information is stored.

Next, using the above notification means,
The broadcast mail service will be described. FIG. 20 shows an explanatory diagram of the broadcast mail service. Broadcast notification can be made by designating in advance that notification should be made to two or more destinations at a specific time. For example, as a wake-up call service or a contact network service, messages are stored in advance, and notification is simultaneously sent to a specified destination at a specified time, and the message is transferred. In this case, the notification means may be provided in the voice storage device.

In FIG. 20, the subscriber A stores a message in the voice storage device and registers a plurality of destinations (X, Y, Z) and delivery time T in the database. At the set time T, a plurality of destinations (X, Y, Z) are sent from the notification means.
Send messages in parallel to. As a result, the broadcast can be performed simultaneously, and it is not necessary to store a plurality of messages. In addition, it is possible to use all the participants of the conference 5 minutes before the conference starts.

Further, the destinations may be randomly extracted, the extracted destinations may be connected to send a message, and the signal or message may be received from the connected destination terminal. The voice storage device may total the signals or messages that have responded.

In this way, various services can be provided by using the voice storage device.

According to the present embodiment, a large-capacity storage device can be provided, and the load can be distributed by connecting the voice storage device to the exchange and fixedly allocating the storage device. In addition, the service continuity is ensured against a change in station conditions such as expansion by transfer via a network such as a public network. Further, various services can be provided by including an exchange and a voice storage device.

[0049]

According to the present invention, various services can be provided by including the exchange and the voice storage device.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a voice storage device system.

FIG. 2 is an explanatory diagram of specifications of functional operation characteristics.

FIG. 3 is a configuration diagram of a connection of a voice storage device to a network.

FIG. 4 is a diagram showing the development of a network configuration.

FIG. 5 is a device summary list.

FIG. 6 is a configuration diagram of a voice storage device system.

FIG. 7 is a list of device specifications.

FIG. 8 is a network configuration diagram.

FIG. 9 is a load distribution of a signal line.

FIG. 10 is a signal sequence diagram for recording and reproduction.

FIG. 11 is a device configuration of a voice storage unit.

FIG. 12 is a line usage status display screen.

FIG. 13 is a method of selecting a voice storage unit.

FIG. 14 is a selection sequence of a voice storage unit.

FIG. 15 is an inter-unit transfer associated with division within the same system.

FIG. 16: Relocation between stations due to expansion of other stations.

FIG. 17 is a message storage system in personal communication.

FIG. 18 is a message storage system having a pager notification function.

FIG. 19 is a message storage system having a function of notifying a mobile terminal.

FIG. 20 is an explanatory diagram of a broadcast service.

FIG. 21 is an explanatory diagram (1/2) of a voice storage system service.

FIG. 22 is an explanatory diagram (2/2) of a voice storage system service.

FIG. 23 is a sequence diagram of a voice message transfer method.

FIG. 24 is a user service flowchart.

[Explanation of symbols]

10 ... Voice storage unit, 11 ... System control unit, 12 ... Maintenance terminal device, 13 ... Remote maintenance terminal device.

Claims (12)

[Claims] 1. An exchange system having a plurality of communication lines and exchanging information between the plurality of communication lines based on destinations, wherein information transferred from the exchange is connected to the exchange. And a plurality of information storage devices for accumulating information, wherein the exchange is pre-designated as a trigger for the transfer of the input information, and a determining means for determining whether or not the designated transfer is triggered. And a transfer unit that transfers the input information to the information storage device instead of exchanging the input information with the destination when the transfer is triggered. 2. The switching system according to claim 1, wherein the determination means sets the trigger of the transfer to be when there is no response when the destination for delivering the input information is called. 3. The determination means according to claim 1, wherein the transfer is triggered when there is no response for a predetermined time when the destination for delivering the input information is called. Exchange system. 4. The exchange system according to claim 1, wherein the determination means sets the trigger for the transfer to be the time when the destination for delivering the input information is a predetermined destination. 5. The exchange according to claim 1, further comprising storage means for storing identification information of an exchange destination corresponding to a destination, and registration means for registering the storage means in the storage means. The exchange system is characterized in that when the exchange destination corresponding to the destination of the input information is not registered, the exchange system is referred to. 6. The exchange according to claim 5, further comprising a radio base station that wirelessly communicates with the mobile terminal, wherein the registration means registers the location information of the mobile terminal as identification information of the exchange destination. A characteristic exchange system. 7. The exchange according to claim 6, further comprising notifying means for notifying the terminal that the information is accumulated when the information addressed to the terminal is accumulated in the information accumulating apparatus, An exchange system, wherein the notification means notifies the registered mobile terminal that the information addressed to the terminal is stored when the location information of the registration means is registered. 8. The exchange system according to claim 1, wherein the exchange further comprises notifying means for notifying that information has been stored in the information storage device. 9. The notification device according to claim 8, wherein the notifying means is a predesignated 1 or 2 corresponding to a destination of the input information.
A switching system characterized by notifying the above destinations. 10. The exchange system according to claim 8, wherein the notifying means adds information relating to the input information when notifying. 11. The notification means according to claim 10,
As information regarding the input information, storage area information indicating an area in which information of the information storage device is stored, a sender number, a sender name, and a predetermined service number for accessing the information storage device. Among them, the switching system characterized by notifying at least one piece of information. 12. The exchange system according to claim 8, wherein said notifying means notifies at a time designated in advance.