JP3790582B2 - switch - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an exchange having a function of sequentially attempting call connections to a plurality of designated called terminals.
[0002]
[Prior art]
Among the terminals accommodated in the exchange, a terminal having a function of automatically attempting a call connection sequentially in accordance with the priority order given to the telephone numbers for a plurality of terminals having telephone numbers registered in advance Is present.
[0003]
Japanese Patent Laid-Open No. 7-245654 discloses a private branch exchange having a similar function. The private branch exchange described in this publication is configured to hold several extension representative group tables in which telephone numbers of a plurality of terminals are stored. The private branch exchange has a function of creating an extension representative group table based on information input from the terminal. When a telephone number to which a special number is added is input, the extension representative group table corresponding to the telephone number An unused (not busy) terminal is specified using the telephone number stored in the terminal, and a call is made to the specified terminal.
[0004]
[Problems to be solved by the invention]
According to such a technique, a subscriber can make a call with any of a plurality of subscribers only by inputting a telephone number into the terminal once. However, in the prior art, whether or not call connection to each terminal is possible is determined based on the same determination criterion. For example, it has been determined that a terminal that is not busy cannot be connected when there is no response during a predetermined time of calling. For this reason, for the subscriber who responds quickly to the ringing tone, more than necessary ringing tone is output to confirm the absence of the subscriber, and for the subscriber who responds slowly to the ringing tone. In spite of being absent, it was supposed to be wrongly judged to be absent.
[0005]
In addition, in the conventional exchange, each telephone number in the table is used in a predetermined order, so that a call is not actually connected to a terminal whose telephone number is registered in the latter half of the table. It was. For this reason, even when there is no subscriber terminal to which a call connection should be preferentially made, the call has been preferentially connected to the terminal that first registered the telephone number.
[0006]
In addition, when using the functions provided in a conventional exchange, two operations are required: registering a table storing telephone numbers in advance and instructing execution of call connection using the registered table. It was. For this reason, if the combination of terminals that should be used for call connection is not frequently used, using this function will result in a time equivalent to or longer than the time when call connection to each terminal is performed individually. It takes. In addition, since the storage capacity of the storage device in the exchange is wasted, the function could not be used in the above case.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to provide an exchange in which a subscriber can set a processing procedure (calling time, etc.) for each called terminal to which call connection is to be attempted.
Another object of the present invention is to provide an exchange capable of giving an equal incoming call opportunity to a plurality of terminals set as terminals to be subjected to call connection.
[0008]
Another object of the present invention is a function for sequentially trying call connection while automatically determining whether or not call connection to each terminal is possible, and is suitable for use with a terminal group that is not frequently used. It is to provide an exchange having a function.
[0009]
[Means for Solving the Problems]
The first exchange according to the present invention obtains, from a subscriber terminal, storage means, telephone numbers relating to a plurality of called terminals to which a call connection is to be attempted, and a cancellation condition for canceling the call connection attempt for each called terminal. And a telephone number / operating condition table storing telephone numbers and cancellation conditions related to a plurality of called terminals in the storage means based on the information acquired by the acquisition means and the information acquired by the acquisition means in association with predetermined identification information. The creation means, the specification means for specifying the telephone number / operation condition table corresponding to the predetermined identification information from the storage means when the predetermined identification information is input from the subscriber terminal, and the specification means A means for attempting a call connection to a called terminal by sequentially using a telephone number and a cancellation condition stored in the specified telephone number / operating condition table, wherein the incoming call is attempting a call connection. If the cancellation condition is satisfied without being notified that the call connection is accepted from the end, the call connection to another called terminal is attempted, and the call terminal responds to the call connection without satisfying the cancellation condition. Is notified, a connection means for connecting a call from the subscriber terminal to the called terminal is provided.
[0010]
In the first exchange of the present invention having such a configuration, a condition for canceling a call connection attempt individually from a subscriber terminal to a plurality of called terminals to which a call connection is to be attempted (next incoming call). The condition for starting the call connection to the terminal can be set. Therefore, according to the present switch, any one of a plurality of designated called terminals can be determined while automatically determining whether or not the call connection is possible in consideration of the characteristics of the user of each called terminal. Thus, a service for connecting a call to an incoming call terminal can be realized.
[0011]
The second exchange according to the present invention provides a subscriber terminal with storage means, an access code, a telephone number relating to a plurality of called terminals to which call connection is to be attempted, and a stop condition for stopping call connection attempts for each called terminal. Based on the information acquired by the acquisition means and the information acquired by the acquisition means, the access code and the telephone number / operating condition table storing the telephone numbers and cancellation conditions for a plurality of called terminals are stored in the storage means. Creating means that is created in association with the identification information, and when the predetermined identification information is inputted from the subscriber terminal, the telephone number / operating condition table corresponding to the predetermined identification information is specified from the storage means Identification means, information inputted from the subscriber terminal after inputting predetermined identification information, and access numbers stored in the telephone number / operating condition table identified by the identification means. A determination means for determining whether or not the codes match, and information stored in the telephone number / operating condition table specified by the specifying means when it is determined that the access code matches the information from the subscriber terminal Means for initiating a call connection attempt to a called terminal using a telephone number and a cancellation condition, and the cancellation condition without being notified that the incoming call terminal attempting the call connection responds to the call connection. Is satisfied, the call connection to the other called terminal is attempted. If the call receiving terminal is notified that the call connection is accepted without satisfying the cancellation condition, the call from the subscriber terminal is Connecting means for connecting to the called terminal.
[0012]
In the second exchange of the present invention having such a configuration, a condition for canceling a call connection attempt individually from the subscriber terminal to a plurality of called terminals to which a call connection is to be attempted (the next incoming call). The condition for starting the call connection to the terminal can be set. Therefore, according to the present switch, any one of a plurality of designated called terminals can be determined while automatically determining whether or not the call connection is possible in consideration of the characteristics of the user of each called terminal. Thus, a service for connecting a call to an incoming call terminal can be realized. Further, in the present exchange, since the service is executed after confirming the access code, the number of users of the service can be limited.
[0013]
In the first or second exchange of the present invention, a means for obtaining a representative telephone number used as predetermined identification information is used as the obtaining means, and information including the predetermined number and the representative telephone number is provided as the specifying means. It is also possible to use means for specifying a telephone number / operation condition table corresponding to the representative telephone number when input.
[0014]
Further, in the first and second exchanges of the present invention, means for using a predetermined stop condition as the stop condition for each called terminal is adopted as the preparation means when the stop condition is not acquired by the acquiring means. can do.
[0015]
A creation means for creating a telephone number / operating condition table in which telephone numbers and cancellation conditions related to a plurality of called terminals are stored in a form in which the order of use is stored in the first or second exchange of the present invention; In the case of adopting a connection means that uses telephone numbers and cancellation conditions stored in the number / operation condition table in the order according to the order of use, when the call connection is made by the connection means, the order of use is the second. The phone number and the operating conditions so that the order of use of the phone number from the first to the lowest and the order of use of the cancellation condition are moved up by 1 place, and the order of use of the phone number and the stop condition that was the highest use order is the lowest. An updating means for updating the contents of the table can be added. Also, when a call connection is made by the connection means, the phone number and the cancellation condition use order for each called terminal are randomly determined, and the determined use order is given to the phone number and the stop condition for each called terminal. It is also possible to add update means for updating the contents of the telephone number / operation condition table.
[0016]
In an exchange to which such update means is added, a fair call opportunity can be given to each call receiving terminal whose telephone number is stored in the telephone number / operating condition table.
[0017]
The first and second exchanges also store acquisition means for acquiring weighting factors for each telephone number, and store telephone numbers, cancellation conditions, and weighting factors for a plurality of called terminals in a form in which they are used. And a connection means for using the telephone number and the stop condition stored in the telephone number / operation condition table in order according to the order of use. When a call connection is made, the order of use of the telephone numbers and cancellation conditions for each called terminal is randomly determined in consideration of the corresponding weighting factor, and the determined order of use is determined for each called terminal. An updating means for updating the contents of the telephone number / operation condition table can be added so as to be given to the telephone number and the cancellation condition.
[0018]
In the exchange configured as described above, it is possible to give a stochastically high call opportunity to a call terminal having a large weighting factor among the call terminals whose telephone numbers are stored in the telephone number / operation condition table. It will be. In addition, when the called terminals (telephone numbers) given with the same weighting coefficient are compared with each other, these terminals are given an equal incoming call opportunity.
[0019]
The third exchange of the present invention has an acquisition means for acquiring from a subscriber terminal telephone numbers relating to a plurality of called terminals to which call connection is to be attempted, and a storage means for temporarily storing the telephone numbers acquired by the acquisition means. And a means for starting a call connection attempt using the telephone numbers stored in the storage means when a plurality of telephone numbers are acquired by the acquisition means, from a called terminal attempting the call connection If the predetermined cancellation condition is satisfied without being notified that the call connection is accepted, the telephone number to be used can be changed and the call terminal can respond to the call connection without satisfying the predetermined cancellation condition. When notified, it is used to store the connection means for connecting the call from the subscriber terminal to the called terminal and the telephone number obtained by the obtaining means when the processing by the connection means is completed. Comprising a release means for releasing the storage area in the storage means.
[0020]
That is, in the third exchange, when a series of telephone numbers is input from the subscriber terminal, a call connection attempt to each called terminal corresponding to the telephone numbers is started, and after the end of the attempt, The storage area used for storing those telephone numbers is released. For this reason, according to the present switch, it is possible to realize a service for sequentially trying call connection while automatically determining whether or not call connection to each terminal is possible for a group of terminals that are not frequently used.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described below with reference to the drawings.
<First Embodiment>
The exchange according to the first embodiment of the present invention is an exchange in which a function for realizing a priority call selection service, which is a service for automatically trying a call connection to a plurality of called terminals sequentially, is added to a normal exchange. is there.
[0022]
FIG. 1 shows a schematic configuration of the exchange according to the first embodiment. As illustrated, the exchange 10 includes an exchange unit 11, an audio signal generation unit 12, a connection control unit 13, and a storage unit 14. The exchange 10 (exchange unit 11) is connected to a plurality of subscriber terminals 30 via a subscriber line, and is connected to other exchanges via a trunk line.
[0023]
The switching unit 11 is a circuit for performing circuit switching, and is controlled by the connection control unit 13. The exchange unit 11 has a function of sending a dial tone to an off-hook subscriber terminal 30 and a telephone number input from the subscriber terminal 30 in the same manner as an exchange unit provided in a normal exchange. (Selection signal) is notified to the connection control unit 13. In addition to such a normal function, the exchange unit 11 has a function of supplying a voice signal from the voice signal generation unit 12 to any one of the subscriber terminals 30.
[0024]
The voice signal generation unit 12 is a circuit that outputs various messages (voice signals) such as “Please input the * th telephone number” to the subscriber terminal 30 via the exchange unit 11. The audio signal generator 12 receives from the connection controller 13 information specifying the type of message to be output and information specifying numerical information to be set in the “*” part, and receives a message (for example, “1”). Please input the second telephone number. ”) Is started, and when the output of the message is completed, the connection control unit 13 is notified accordingly. When the connection control unit 13 instructs the voice signal generation unit 12 to stop outputting the message, the voice signal generation unit 12 stops sending the message to the exchange unit 11 (subscriber terminal 30).
[0025]
The storage unit 14 is a unit for storing data (table) related to the priority order call selection service, and is configured by a magnetic storage device. As shown in the figure, the storage unit 14 stores four types of tables such as a representative telephone number table 21, a telephone number table 22, an operating condition table 23, and a standard operating condition table 24. Details of each table will be described later.
[0026]
The connection control unit 13 is a control circuit that controls each unit in an integrated manner, and includes a CPU and its peripheral circuits (ROM, RAM, etc.). In response to a normal line connection request, the connection control unit 13 performs the same control as the control unit provided in the normal exchange on the exchange unit 11.
[0027]
For example, when a selection signal (telephone number) for requesting line connection to a terminal accommodated in another exchange is input from a certain subscriber terminal 30, the connection control unit 13 analyzes the content of the input selection signal. By doing so, the exchange (destination exchange) in which the counterpart terminal is accommodated is specified. Thereafter, the connection control unit 13 sends an activation signal to the identified destination exchange and waits for a response signal to be input from the destination exchange. Then, when a response signal is input, the switching unit 11 is controlled so that a communication line is set between the calling subscriber terminal 30 and the destination exchange (destination terminal).
[0028]
On the other hand, when a selection signal related to the priority order call selection service is input, the connection control unit 13 controls the exchange unit 11, the audio signal generation unit 12, and the storage unit 14 to respond to the content of the selection signal. Perform various processes. In this process, a telephone number table registration process for creating in the storage unit 14 a telephone number table 22 in which telephone numbers of a plurality of terminals to be subjected to call connection are stored, and telephone numbers are stored in the telephone number table 22. An operation condition table registration process for creating an operation condition table 23 in the storage unit 14 in which conditions for canceling the call connection attempt to each terminal are stored, and a telephone number is stored in the telephone number table 22 in the storage unit 14 Priority call selection processing for actually attempting call connection to each terminal, telephone number table correction processing for correcting the contents of the telephone number table 22, telephone numbers of a plurality of terminals received from the subscriber terminal 30, and those terminals There is a second priority call selection process that tries to connect the call sequentially.
[0029]
Before explaining the details of each process, referring to FIG. 2, an outline of data stored in the representative telephone number table 21, the telephone number table 22, the operating condition table 23, the standard operating condition table 24, and the telephone number table. An overview of registration processing, operation condition table registration processing, and priority order call selection processing will be described.
[0030]
The priority order call selection process (priority order call selection service) is a process of attempting a call connection to each terminal whose telephone number is stored in the telephone number table 22. For this reason, the user of this service needs to cause the connection control unit 13 to execute the telephone number table registration process prior to the actual use of the service.
[0031]
In the telephone number table registration process, a telephone number table 22 that stores an access code, link information, and a plurality of telephone numbers based on a representative telephone number, an access code, and a plurality of telephone numbers input from the subscriber terminal 30 is a storage unit. 14 is created (registered). During the telephone number table registration process, the telephone number table 22 is stored in the storage unit 14 in a form that can be identified (searched) by certain table identification information, and the table identification information and the representative telephone input from the subscriber terminal 30 are stored. The correspondence with the number is registered (added) in the representative telephone number table 21. Further, the identification information of the standard operating condition table 24 is stored in the telephone number table 22 as link information during the telephone number table registration process.
[0032]
That is, in the telephone number table registration process, the telephone number table 22 _k As described above, the access code, link information, and a plurality of telephone numbers are held, and the telephone number table associated with the standard operating condition table 24 by the link information can be searched in the storage unit 14 in a form that can be searched by the representative telephone number. Remembered. Although specific usage of the access code will be described later, the access code is used as information (so-called password) for restricting the users of the telephone number table 22.
[0033]
The standard operation condition table 24, which is a table associated with the telephone number table 22, includes a standard repeat count, a standard rearrangement flag, and a standard stop condition (standard busy waiting time and standard absent call time) as shown in the figure. Is remembered. Although specific usage of these data will be described later, the standard cancellation condition is data defining conditions for canceling a call connection attempt for each terminal (conditions for starting a call connection attempt for the next terminal). It has become. That is, in the switchboard 10, when the telephone number table 22 designated as the processing target of the priority order call selection process is a table associated with the standard operating condition table 24, the telephone number is stored in the telephone number table 22. Whether or not a call connection is possible for each terminal in which is stored is determined based on the same criterion (standard cancellation condition).
[0034]
When it is desired to individually set the determination condition for whether or not the call connection is possible for each terminal, the registrant of the telephone number table 22 causes the connection control unit 13 to execute an operation condition table registration process. In the operation condition table registration process, based on information input from the registrant, an operation condition that stores the number of repetitions, a rearrangement flag, and the same number of cancellation conditions as the telephone numbers stored in the corresponding telephone number table 22 A table 23 is created in the storage unit 14. At that time, the operation condition table 23 is stored in the storage unit 14 in a form identified by some kind of identification information, and the identification information is written in the link information storage area of the corresponding telephone number table 22.
[0035]
For example, telephone number table 22 ₁ Operating condition table 23 corresponding to ₁ As shown by the dotted line arrow, the link information that has been shown in the standard operation condition table 24 until then is changed to the operation condition table 23 as shown by the solid line arrow. ₁ Is rewritten to link information indicating. When the execution of the priority order call selection process is instructed, the connection control unit 13 sets the operation condition table 23 for the telephone number table 22 based on the contents of the link information in the telephone number table 22 designated as the processing target. It is determined whether it is prepared. If the telephone number table 22 designated as the processing target is a table having the operation condition table 23, whether or not the call connection to each terminal is possible is determined as a cancellation condition for each terminal stored in the operation condition table 23. Judgment by.
[0036]
As will be described later, the switch 10 uses a tone signal when acquiring various data (telephone number, access code, etc.) from the subscriber. For this reason, when the priority order call selection service function of the switch 10 is used from a terminal in a dial format, the user needs to prepare a device that can output a tone signal.
[0037]
Details of each process executed by the connection control unit 13 will be described below. In each process described below, various variables are used, but the memory included in the connection control unit 13 is used for storing each variable, and an area for storing each variable is as follows. The variable is released when it becomes an unnecessary variable.
[0038]
FIG. 3 shows an operation flow of the connection control unit 13 when the telephone number table registration process is executed. The connection control unit 13 receives a telephone number (hereinafter referred to as a dedicated telephone number registration number) assigned for registration of a telephone number table from a certain subscriber terminal 30 (hereinafter referred to as a calling terminal). When input, the process shown in FIG. 3 is started.
[0039]
As shown in the figure, at the start of the telephone number table registration process, the connection control unit 13 first sets “1” to i, which is a variable for storing the total number of input telephone numbers (step S101). Next, the connection control unit 13 instructs the voice signal generation unit 12 to output a telephone number input request message (step S102).
[0040]
The phone number input request message is “Please enter the * th phone number. After entering the phone number, enter #. To finish entering the phone number, enter only #. Message ". In step S102, the connection control unit 13 notifies the audio signal generation unit 12 of the value of the variable i as information to be inserted into the “*” portion together with information indicating the type of message.
[0041]
After instructing the audio signal generation unit 12 to output a message, the connection control unit 13 starts a data acquisition process (step S103).
FIG. 4 shows a flow of the operation of the connection control unit 13 when executing the data acquisition process. As shown in the figure, during the data acquisition process, the connection control unit 13 first clears D, which is a variable for storing a character string (step S201), and starts monitoring tone signal input from the calling terminal. (Step S202). When it is detected that a tone signal has been input (step S202; Y), the connection control unit 13 generates an audio signal when the audio signal generation unit 12 is outputting a message (or preparing for output). The unit 12 is instructed to cancel the message output (step S203). If the output of the message by the audio signal generator 12 has been completed, or if the stop instruction has already been issued to the audio signal generator 12, the connection controller 13 does not perform anything in step S203, but in step S204. Proceed to
[0042]
In step S204, the connection control unit 13 converts the input tone signal into a code (character code). When the converted code corresponds to the number (0 to 9) (step S205; numerical value), the connection control unit 13 adds the code to the end of the variable D (step S206), and step S202. Return to. If the tone signal corresponds to “#” (step S205; #), the connection control unit 13 ends the data acquisition process.
[0043]
Returning to FIG. 3, the operation of the connection control unit 13 after the completion of the data acquisition process (step S103) will be described.
The connection control unit 13 compares D acquired in the data acquisition process (step S103) with registration end notification data Dend (Dend = “null” in this exchange) (step S104). If D and Dend do not match (step S104; N), the connection control unit 13 stores the contents of D as the i-th telephone number (step S105). Next, i is incremented by “1” (step S106), and the process returns to step S102. The connection control unit 13 exits the loop of steps S102 to S106 when D and Dend match (step S104; Y).
[0044]
That is, when “phone number + #” is input during the data acquisition process (step S103), the connection control unit 13 stores the phone number by branching to the “N” side in step S104. At the same time, processing for acquiring the next telephone number is started. Then, when only “#” is input during the data acquisition process, it is recognized that the input of the last telephone number has been completed, and the processes after step S107 are started.
[0045]
In step S107, the connection control unit 13 instructs the audio signal generation unit 12 to output an access code input request message (step S107). In response to this instruction, the audio signal generation unit 12 starts sending an audio signal such as “Enter the access code. Enter the access code and then enter #.” Next, the connection control unit 13 executes the data acquisition process (step S108) again, and stores the contents of D obtained in the data acquisition process as an access code (step S109). Then, the connection control unit 13 instructs the audio signal generation unit 12 to output a representative telephone number input request message (“Please input the representative telephone number”) (step S110), and data acquisition processing (step S111). ).
[0046]
After completing the data acquisition process (step S111), the connection control unit 13 stores the contents of D as a representative telephone number (step S112). Next, the connection control unit 13 stores the telephone numbers 1 to i-1 stored in step S105, the access code stored in step S109, and link information (standard table link information) indicating the standard operating condition table 24. Then, the telephone number table 22 is created and stored in the storage unit 14 (step S113). At this time, the connection control unit 13 gives table identification information to the telephone number table 22 and stores the telephone number table 22 in the storage unit 14 in a form that can be identified by the table identification information.
[0047]
Next, the connection control unit 13 adds (registers) the representative telephone number stored in step S112 and the table identification information of the telephone number table 22 created and stored in step S113 to the representative telephone number table 21. (Step S114). Then, the connection control unit 13 issues an instruction to output a registration completion notification message in the telephone number table such as “i-1 telephone numbers have been registered” to the audio signal generation unit 12 (step S115). When a message output completion notification is received from the voice signal generator 12, the line with the calling terminal is disconnected (not shown), and the telephone number table registration process is terminated.
[0048]
The registrant of the telephone number table can disconnect the line at any time. However, if the line is disconnected before the completion of step S111, the connection control unit 13 does not register the telephone number table 22 and registers the telephone number table 22. The registration process ends.
[0049]
Here, taking as an example the case of registering a telephone number table 22 storing three telephone numbers, a telephone number table registration method for the switch 10 (method of using telephone number table registration processing) will be described with reference to FIGS. ).
[0050]
When registering the telephone number table for the switch 10 for the first time, the registrant inputs the telephone number and the like while confirming the type of information to be input by a message from the switch 10. Therefore, during the telephone number table registration process, as shown in FIG. 5, message transmission from the switch 10 to the calling terminal and tone signal transmission from the calling terminal to the switch 10 are performed alternately.
[0051]
On the other hand, if the registrant is familiar with the registration method of the telephone number table, it is not necessary to listen to the message from the exchange, so it is desirable that the telephone number and the like can be input without waiting for completion of the message. In the switch 10, as described above, the sending of the message by the voice signal generating unit 12 and the monitoring of the tone signal input from the calling terminal by the connection control unit 13 are performed in parallel, and from the calling terminal, When the tone signal is input, the message output by the audio signal generator 12 is stopped and the next process is started.
[0052]
Therefore, as shown schematically in FIG. 6, the registrant only needs to confirm that the line is connected to the exchange (until the output of the first telephone number input request message is started). Thereafter, the telephone number table 22 can be registered without confirming the content of the message output from the exchange.
[0053]
Next, details of the operation condition table registration process will be described.
FIG. 7 shows an operation procedure of the connection control unit 13 during the operation condition table registration process. The process shown in this figure is also a process for correcting the operation condition table 24 registered in the storage unit 14. When the connection control unit 13 detects that a telephone number assigned in advance for registration (correction) of the operation condition table is input from the subscriber terminal 30 (calling terminal), the connection control unit 13 performs the processing shown in FIG. Start.
[0054]
As shown in the figure, at the start of the operation condition table registration process, the connection control unit 13 first instructs the voice signal generation unit 12 to output a representative telephone number input request message (step S301), and obtains data. The process (step S302) is started. Thereafter, the connection control unit 13 specifies the telephone number table 22 corresponding to the representative telephone number (contents of D) acquired in the data acquisition process by referring to the representative telephone number table 21 (step S303). Next, the connection control unit 13 reads out the access code, link information, and telephone number in the identified telephone number table 22, stores the total number of the read telephone numbers in the variable m, and reads the read access code, link information, m number of telephone number data are respectively variable C, R, T _i (I = 1 to m) is stored (step S304).
[0055]
Next, the connection control unit 13 instructs the audio signal generation unit 12 to transmit an access code input request message (step S305), and starts a data acquisition process (step S306). Then, the connection control unit 13 determines whether or not the acquired access code (content of D) matches the access code (content of variable C) read in step S304, that is, the access code input by the subscriber. Then, it is determined whether or not the access code in the telephone number table 22 matches (step S307). If the two do not match (step S307; N), the connection control unit 13 ends the operation condition table registration process.
[0056]
On the other hand, when the access code (contents of D) entered by the subscriber matches the access code in the telephone number table 22 (step S307; Y), the connection control unit 13 reads the link read in step S304. Based on the information (contents of variable R), it is determined whether or not the corresponding operation condition table 23 exists (step S308).
[0057]
When the corresponding operation condition table 23 does not exist (step S308; N), the connection control unit 13 sets the standard repetition count and the standard relocation flag in the standard operation condition table 24 in the variables Nrpt and F, respectively. At the same time, the standard absence call time is set to t1i (i = 1 to m), and the standard busy time is set to t2i (i = 1 to m) (step S309). Thereafter, the connection control unit 13 starts an operation condition data acquisition process (step S310).
[0058]
On the other hand, when the corresponding operation condition table 23 exists (step S308; Y), the connection control unit 13 sets the number of repetitions and the rearrangement flag in the operation condition table 24 specified by the link information as variables. Nrpt, F are set, and absence call times 1 to m are set to t1i (i = 1 to m). Further, the waiting time 1 to m during busy time is set to t2i (i = 1 to m) (step S319). Thereafter, the connection control unit 13 starts an operation condition data acquisition process (step S320).
[0059]
FIG. 8 shows a flowchart of the operation condition data acquisition process performed in step S310 and step S320. As shown in the figure, during the operation condition data acquisition process, the connection control unit 13 first instructs the audio signal generation unit 12 to output an input request message for the number of repetitions (step S401). At this time, the connection control unit 13 notifies the audio signal generation unit 12 of the value of the variable Nrpt, and the audio signal generation unit 12 “Nrpt is the current number of repetitions. Start outputting audio signals such as “Please.” Next, the connection control unit 13 executes data acquisition processing (step S402), and stores the acquired contents of D in a variable Nrpt (step S403).
Thereafter, the connection control unit 13 instructs the audio signal generation unit 12 to transmit a rearrangement flag input request message (step S404). At this time, the connection control unit 13 notifies the audio signal generation unit 15 of the value of the variable F, and the audio signal generation unit 12 indicates that “the current rearrangement flag is F. Starts to output a voice signal such as “0, or 1 when rearrangement is performed”. And the connection control part 13 memorize | stores D acquired by execution of a data acquisition process (step S405) in the variable F for rearrangement flags (step S406).
[0060]
Next, the connection control unit 13 sets “1” to the variable j that is a loop counter (step S407), and notifies the voice signal generation unit 12 of the contents of the telephone number Tj and the absence time t1j. Then, an instruction to output an input request message for the absence calling time is given (step S408). In response to this instruction, the voice signal generation unit 15 outputs a voice signal such as “the absence call time for the current telephone number Tj is t1j seconds. Please input the absence call time to be set.” Start.
[0061]
After sending the message output instruction to the audio signal generator 12, the connection controller 13 starts the data acquisition process (step S409), and sets D acquired in the data acquisition process to t1j (step S410). Next, the connection control unit 13 performs the same processing for the busy waiting time t2j (steps S411 to S413). After that, the connection control unit 13 compares the magnitude relationship between j and m (the total number of telephone numbers acquired in step S304), and when j is less than m (step S414; Y), After adding 1 ″ (step S415), the process returns to step S408. On the other hand, when j is equal to m (step S414; N), the connection control unit 13 ends the operation condition data acquisition process (proceeds to step S311 or S321 in FIG. 7).
[0062]
Although not shown in the flowchart, in steps S403, S405, S410, and S413, when D is “null”, the connection control unit 13 does not set the contents of D to each variable and performs each step. finish. That is, when the person who registers or modifies the operating condition table inputs only “#”, the next step is started without changing the corresponding data.
[0063]
Returning to FIG. 7, the description of the operation of the operation condition table registration process will be continued.
When the operation condition data acquisition process in step S310 is completed, the connection control unit 13 creates an operation condition table 23 composed of each data acquired in the operation condition data acquisition process and stores it in the storage unit 12 (step S311). Then, link information for specifying the created operation condition table 23 is written in the telephone number table 22 specified in step S303 (step S312), and the operation condition table registration process is terminated.
[0064]
When the operation condition data acquisition process in step S320 is completed, the connection control unit 13 uses the data acquired in the operation condition data acquisition process (step S320) as the contents of the operation condition table 23 from which the contents have been read. Updating (step S321), the operation condition table registration process (in this case, the correction process) is terminated.
[0065]
Next, the operation procedure of the connection control unit 13 during the priority order call selection process will be described.
When requesting the execution of the priority order call selection process, the subscriber uses the predetermined special number assigned for the priority order call selection process and the representative telephone number set when the telephone number table 22 is registered. Input to the terminal 30 (calling terminal).
[0066]
The connection control unit 13 recognizes that the execution of the priority order call selection processing is instructed when a telephone number including a predetermined special number at the head thereof is input, and removes the special number from the input telephone number. Is recognized as the representative telephone number. And the connection control part 13 starts the process shown in FIG.
[0067]
As shown in the figure, at the start of priority order call selection processing, the connection control unit 13 refers to the representative telephone number table 21 to identify the telephone number table 22 corresponding to the representative telephone number input from the calling terminal ( Step S501). Next, the connection control unit 13 reads out the access code, link information, and phone number in the specified phone number table 22, sets the total number of the read phone numbers in the variable m, and reads the read access code, link information, m Phone numbers, variables C, R, T, respectively _i (I = 1 to m) is stored (step S502). Then, the connection control unit 13 instructs the audio signal generation unit 12 to output an access code input request message (step S503), and starts a data acquisition process (step S504).
[0068]
After the completion of the data acquisition process (step S504), the connection control unit 13 determines whether or not the acquired access code (content of D) matches the access code read in step S502 (step S505). . If the contents of the access codes do not match (step S505; N), the connection control unit 13 ends the priority order call selection process without attempting to connect the call.
[0069]
On the other hand, when the content of D matches the access code (step S505; Y), the connection control unit 13 determines whether or not the corresponding operation condition table 23 exists based on the content of the link information R. (Step S506). When the operation condition table 23 does not exist (step S506; N), the connection control unit 13 stores the standard repetition count and the standard relocation flag in the standard operation condition table 24 in the variables Nrpt and F, respectively. At the same time, the standard absence call time is set to t1i (i = 1 to m), and the standard busy time is stored in t2i (i = 1 to m) (step S507). On the other hand, when the operation condition table 23 exists (step S506; Y), the connection control unit 13 determines the number of repetitions in the operation condition table 23 specified by the link information R, the rearrangement flag, and m sets. Are set to the variables Nrpt, F, t1i, t2i (i = 1 to m), respectively (step S508), and the processing shown in FIG. 10 is started.
[0070]
FIG. 10 shows only the operation procedure when the telephone number stored in the telephone number table 22 is a telephone number relating to a terminal accommodated in another exchange.
[0071]
As shown in the figure, the connection control unit 13 sets the data in the operation condition table 23 or the standard operation condition table 24 in the variables Nrpt, F, t1i, t2i (i = 1 to m), and then sets the loop counter. 1 is set in each of the variable j and the variable k (step S601). Then, the connection control unit 13 identifies the exchange (the destination exchange) that accommodates the subscriber terminal (the j-th terminal) corresponding to the telephone number Tj, and makes a call connection request to the identified destination exchange. (Activation signal) is transmitted (step S602).
[0072]
As is well known, the destination exchange detects the state of use of the subscriber terminal (incoming terminal) for which a call connection request has been made, and if the incoming terminal is not in use, the RGT (Ringing Tone) ) And RBT (Ring Back Tone) transmission to the originating exchange. Then, when the receiver of the destination terminal is picked up, the destination exchange transmits a response signal to the source exchange. In addition, when the subscriber terminal is being used, the destination exchange sends a busy signal to the originating exchange.
[0073]
For this reason, the connection control unit 13 receives an RBT or busy signal from the destination exchange after sending out the connection request (step S602). When the received signal is an RBT signal (step S603; RBT), the connection control unit 13 starts sending the RBT signal to the calling terminal and starts measuring time (step S604). Then, when the measured time is equal to or longer than the absence call time t1j (step S605; absence), the process proceeds to step S611 in order to try to connect the call to the next terminal. If a response signal is input before the measured time exceeds the absence call time t1j (step S605; response), a j-th terminal (having a telephone number Tj) and a calling terminal A telephone line is connected between (step S606). Then, the connection control unit 13 determines whether or not the value of the rearrangement flag F is “1”, and if it is “1” (step S607; Y), the telephone number in the telephone number table. A table rearrangement process (details will be described later), which is a process for changing the registration order, is executed (step S608), and the priority order call selection process is terminated.
[0074]
On the other hand, when the received signal is a busy signal (step S603; busy), the connection control unit 13 starts sending the busy signal to the calling terminal and starts measuring time (step S609). When the measured time is equal to or longer than the standby time t2j during busy (step S610; busy), the process proceeds to step S611. If the signal from the destination exchange changes to the RBT signal before the measured time becomes the busy waiting time t2j or more (step S610; RBT), the process proceeds to step S604.
[0075]
In step S611, the connection control unit 13 adds “1” to j. Next, the connection control unit 13 determines whether j and m + 1 match, and if both do not match (step S612; N), the process returns to step S602. On the other hand, if j and m + 1 match (step S612; Y), that is, if the connection to the m-th terminal, which is the last terminal in the telephone number table 22, fails, the connection control unit 13 sets the variable It is determined whether the value of k is equal to or greater than the number of repetitions Nrpt (step S613). When the value of the variable k is less than the repetition count Nrpt (step S613; N), the connection control unit 13 adds “1” to the value of the variable k and sets “1” to j (step S614). Then, the process returns to step S602. On the other hand, when the value of the variable k is equal to or greater than the number of repetitions Nrpt (step S613; Y), the connection control unit 13 ends the priority order call selection process. That is, the connection control unit 13 performs call connection to a series of terminals whose telephone numbers are stored in the telephone number table 22 for the number of times specified by the number of repetitions Nrpt when call connection cannot be established with any of the called terminals. Repeat the attempt.
[0076]
When the telephone number Tj is related to the terminal accommodated by itself, the processing in steps S602, S603, etc. is only slightly changed (in this case, the connection control unit 13 sends a connection request). Therefore, the description of the operation will be omitted.
[0077]
Hereinafter, the table rearrangement process (step S608) will be described with reference to FIG. FIG. 11A shows an example of the contents of the telephone number table 22 before the table rearrangement process, and FIG. 11B shows the contents of the telephone number table 22 after the table rearrangement process. FIG. As shown in the figure, at the time of the table rearrangement process, the connection control unit 13 causes each telephone number (sub.A) stored at the head in the telephone number table 22 to be stored at the end of the telephone number table. Change the phone number storage location. If the telephone number table has an operation condition table, the connection control unit 13 stores the location of the absence call time and busy waiting time in the operation condition table in the same procedure. The process to change is also performed.
[0078]
Here, a specific example of call connection realized by the priority order call selection processing will be described with reference to FIG.
When using the priority order call selection service, the subscriber picks up the handset of the subscriber terminal (calling terminal) and inserts the special number + representative telephone number as shown in the figure. In response to the operation, the exchange reads the telephone number table and the operating condition table, sends an access code input request message to the calling terminal, and acquires the access code from the calling terminal.
[0079]
After the access code authentication is performed, the exchange analyzes the contents of the first telephone number stored in the telephone number table, thereby exchanging the terminal 1 to which the telephone number is assigned. And a connection request is sent to the exchange (the destination exchange 1).
[0080]
When the terminal 1 is not used, the destination exchange 1 sends an RGT (ringing tone) to the terminal 1 and sends an RBT (ring back tone) to the exchange. Upon receiving the RBT, the exchange sends the RBT to the calling terminal and waits for the absence of the call time 1 when the absence relating to the terminal 1 (phone number 1) elapses. If the absence call time 1 elapses before the response signal is input from the destination exchange 1, the exchange cancels the connection request and starts a call connection attempt to the second terminal as shown in the figure. .
[0081]
Receiving the connection request to the terminal 2, the receiving switch 1 recognizes that the terminal 2 is in use, and sends a busy signal to the switch. The switch has a busy waiting time 2 elapses. Wait for. For example, when the busy time 2 is “0”, the exchange immediately starts analyzing the third telephone number and connects to the destination exchange 2 that accommodates the corresponding terminal 3. Send a request.
[0082]
If the terminal 3 is not used, the destination exchange 2 sends an RGT to the terminal 3 and sends an RBT to this exchange. Upon receiving the RBT, this exchange sends the RBT to the calling terminal. In addition, the switching center 2 that has detected that the terminal 3 is OFF-Hooked sends out a response signal to the switching center, and the switching system connects the calling terminal and the terminal 3 (the switching center 2). Are connected and the table rearrangement process is executed.
[0083]
Next, telephone number table correction processing will be described with reference to FIG. This telephone number table correction process is started when a telephone number assigned for the telephone number table correction process is input. The telephone number table correction process is also used when confirming the contents of the telephone number table.
[0084]
As shown in the figure, at the start of the telephone number table correction process, the connection control unit 13 first instructs the voice signal generation unit 12 to output a representative telephone number input request message (step S701), and obtains data. The process (step S702) is started. Thereafter, the connection control unit 13 specifies the telephone number table 22 corresponding to the representative telephone number (contents of D) acquired in the data acquisition process by referring to the representative telephone number table 21 (step S703). Next, the connection control unit 13 reads out the access code, link information, and telephone number in the identified telephone number table 22, stores the total number of the read telephone numbers in the variable m, and reads the read access code, link information, The m pieces of telephone number data are stored in variables C, R, and Ti (i = 1 to m), respectively (step S704).
[0085]
Next, the connection control unit 13 instructs the audio signal generation unit 12 to transmit an access code input request message (step S705), and starts data acquisition processing (step S706). Then, the connection control unit 13 determines whether or not the acquired access code (content of D) matches the access code (content of variable C) read in step S704 (step S707). If the two do not match (step S707; N), the connection control unit 13 ends the telephone number table correction process.
[0086]
On the other hand, when the access code (contents of D) entered by the subscriber matches the access code in the telephone number table 22 (step S707; Y), the connection control unit 13 sets the variable i as a loop counter to “ 1 ″ is set (step S708), and the voice signal generation unit 12 is instructed to transmit a telephone number correction request message (step S709). At this time, the connection control unit 13 notifies the audio signal generation unit 12 of the contents of the variable i and the telephone number Ti, and the audio signal generation unit 12 indicates that “i-th telephone number is Ti. Enter a new phone number, enter “0” to delete, or enter “#” if you do not want to modify. ” To start.
[0087]
Next, the connection control unit 13 executes data acquisition processing (step S710). If the acquired content of D is “0” (step S711; 0), “null” is set in the telephone number variable Ti. Set (step S712), the process proceeds to step S714. If the content of D is “null” (step S711; null), nothing is performed and the process proceeds to step S714. If the contents of D are neither “0” nor “null” (step S711; correction), the contents of D are set in the telephone number variable Ti (step S710), and the process proceeds to step S714.
[0088]
In step S714, the connection control unit 13 determines whether i is m or less. If i is m or less (step S714; Y), “1” is added to i (step S715). Then, the process returns to step S709. On the other hand, if i is greater than or equal to m (step S714; N), the connection control unit 13 sets the variable T _i Among these, the telephone number table 22 is reconstructed using a variable whose content is not “null” (step S716), and the telephone number table correction process is terminated. In step S716, when the telephone number table 22 to be corrected is a table having the operation condition table 23, the connection control unit 13 includes the contents of the cancellation conditions in the operation condition table 23. The process of deleting the cancellation condition corresponding to Ti with “null” is also performed.
[0089]
Next, the second priority order call selection process will be described. As described above, in the second priority order call selection process, call connection to a plurality of called terminals is attempted without using an existing telephone number table. The second priority call selection process is started when the subscriber terminal 30 receives a telephone number assigned for the second priority call selection process.
[0090]
As shown in FIG. 14, in the second priority order call selection process, the connection control unit 13 performs the same processes as steps S101 to S106 in the telephone number table registration process (FIG. 3) in steps S801 to S806. That is, the connection control unit 13 acquires several telephone numbers from the subscriber terminal 30 by repeating the loop of steps S801 to S806. When D obtained in the data acquisition process (step S803) matches the registration end notification data Dend (= “null”) (step S804; Y), each data in the standard operating condition table 24 is Processing for setting a corresponding variable (variable used in the processing of FIG. 10) is performed (step S807). At this time, the connection control unit 13 sets the value of the variable F to “0” without setting the value of the rearrangement flag in the variable F. And the connection control part 13 performs the process shown in FIG.
[0091]
That is, in the second priority call selection process, a process equivalent to the process of adding the telephone number table registration process and the priority call selection process and excluding the table registration related process and the access code related process is performed. Executed.
[0092]
As described above in detail, the exchange according to the first embodiment is configured so that the call time for each terminal can be set individually. For this reason, the priority call selection service can be realized in consideration of the personality of the terminal user.
[0093]
Further, when a call is connected to any terminal in a certain telephone number table, the registration order (usage order) of the telephone numbers in the telephone number table is changed. For this reason, if a telephone number table storing telephone numbers of the same industry such as a taxi company or a restaurant is registered in the exchange, for example, a uniform transaction opportunity is given to each trader.
[0094]
In this switch, only the waiting time during busy time and the absence call time can be set as cancellation conditions for each terminal, but the switch can also be configured so that other condition data such as the number of re-calls can be set. Also, the access code can be stored in the representative telephone number table, or the representative telephone number can be stored in the telephone number table. In addition, the exchange can be configured such that each data stored in the operation condition table such as the absence call time is stored in the telephone number table. In this case, a process corresponding to the telephone number table registration process and a process corresponding to the operation condition table registration process may be performed simultaneously, and each process is performed separately as in the exchange of the embodiment. Also good. In the latter case, the standard value of each data is stored in the telephone number table during processing equivalent to the telephone number table registration process.
[0095]
In addition, although it is not possible to limit the service users, it is natural that the exchange may be configured so that access code-related processing is not performed. Also, prepare a table that stores phone numbers related to terminals that are allowed to use the phone number table, and only if the phone number of the terminal that issued the service request is included in the table. The switch can also be configured to respond to these requests.
[0096]
Second Embodiment
The exchange of the second embodiment is different from the exchange of the first embodiment only in the operation related to the table rearrangement process. For this reason, only the part related to the table rearrangement process will be described here.
[0097]
FIG. 15 shows an outline of the operating condition table stored in the exchange of the second embodiment. As shown in the figure, the operating condition table stored in the exchange of the second embodiment also stores the weighting factor for each telephone number. In the exchange of the second embodiment, table rearrangement is performed using these weighting factors.
[0098]
FIG. 16 shows the flow of table relocation processing executed by the connection control unit provided in the exchange of the second embodiment. The flow shown in the figure is the reading of the contents of the telephone number table (total number of telephone numbers m, telephone number Tj (j = 1 to m)) and the like, and the contents of the operating condition table (weighting factor Wj (j = 1 to m)). Etc.) is performed, and then the call connection is completed (in a step corresponding to step S608 in FIG. 11).
[0099]
As illustrated, at the time of table rearrangement processing, the connection control unit first sets “1” to a variable i (step S901). Next, a section obtained by dividing a number line from 0 to 1 into m (remaining) telephone numbers and having a width corresponding to the weighting coefficient of each telephone number is assigned (step S902). Then, the connection control unit generates a random number from 0 to 1 (step S903), and stores that the telephone number assigned to the section to which the generated random number belongs is the i-th telephone number (step S904). .
[0100]
Next, the connection control unit adds “1” to i (step S905). If i does not match the total telephone number m (step S906; N), the connection control unit returns to step S902, and the remaining The same process is repeated for the telephone number.
[0101]
When i matches m (step S906; Y), the remaining one telephone number is stored as the mth telephone number (step S907). Next, the data in the telephone number table and the operation condition table is rearranged based on the stored information (step S908), and the table rearrangement process is terminated.
[0102]
For example, when the weighting factors 2, 1, 1 are assigned to the three telephone numbers T1, T2, T3, respectively, the connection control unit executes the telephone number T1 when executing step S902 for the first time. , T2, and T3 are assigned sections 0 to 0.5, 0.5 to 0.75, and 0.75 to 1.0, respectively. If the generated random number is 0.3, for example, it is stored that the telephone number T1 is the first telephone number, and step S902 is performed again for the remaining two telephone numbers T2 and T3. Execute. In this case, sections 0 to 0.5 and 0.5 to 1.0 are assigned to the telephone numbers T2 and T3, respectively. Next, a telephone number (for example, T3) to be the second telephone number is selected according to the generated random number, and the remaining telephone number (T2) is stored as the third telephone number. Then, based on these pieces of information, the data in the telephone number table and the operation condition table are rearranged, and the table rearrangement process is completed.
[0103]
According to this table rearrangement process, as schematically shown in FIG. 17, a telephone number to which a large weighting factor (the numerical value shown in parentheses in the figure is a weighting factor) is given is a telephone number table. The possibility of being stored in the upper rank is increased. As a result, an incoming call terminal given a large weighting coefficient is given a larger incoming call opportunity than an incoming call terminal given a small weighting coefficient. In addition, when the called terminals (telephone numbers) given the same weighting coefficient are compared with each other, these terminals are given an equal incoming call opportunity.
[0104]
In the exchange of the second embodiment, the table rearrangement process is performed on the assumption that an equal weighting factor is given to each telephone number for a telephone number table for which no operating condition table is created. Executed.
[0105]
【The invention's effect】
As described above in detail, according to the first and second exchanges of the present invention, a call connection attempt is individually made from a subscriber terminal to a plurality of incoming call terminals to be call-connected. Since it is possible to set a condition to cancel, it automatically determines whether or not a call connection is possible in consideration of the characteristics of the user of each called terminal, and A service for connecting a call to a called terminal can be realized.
[0106]
In addition, according to the first and second exchanges to which each updating means is added, it is possible to give a call arrival opportunity according to fairness or a weighting factor to each call receiving terminal to which call connection is to be attempted.
[0107]
In addition, according to the third exchange of the present invention, a service that tries call connection sequentially is realized for a group of terminals that are not frequently used while automatically determining whether or not call connection to each terminal is possible. It will be possible.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an exchange according to a first embodiment of the present invention.
FIG. 2 is an explanatory diagram showing data stored in four types of tables stored in the exchange of the first embodiment.
FIG. 3 is a flowchart of telephone number table registration processing executed in the exchange according to the first embodiment.
FIG. 4 is a flowchart of data acquisition processing executed in the exchange according to the first embodiment.
FIG. 5 is a first sequence diagram for explaining how to use a telephone number table registration process;
FIG. 6 is a second sequence diagram for explaining how to use a telephone number table registration process;
FIG. 7 is a flowchart of an operation condition table registration process executed in the exchange according to the first embodiment.
FIG. 8 is a flowchart of an operation condition data acquisition process executed in the exchange according to the first embodiment.
FIG. 9 is a flowchart of the first half of a priority order call selection process executed in the exchange of the first embodiment.
FIG. 10 is a flowchart of the latter half of the priority order call selection process executed in the exchange of the first embodiment.
FIG. 11 is an explanatory diagram of table relocation processing executed in the exchange of the first embodiment.
FIG. 12 is a sequence diagram for explaining priority call selection processing executed in the exchange according to the first embodiment;
FIG. 13 is a flowchart of telephone number table correction processing executed in the exchange of the first embodiment.
FIG. 14 is a flowchart of second priority order call selection processing executed in the exchange of the first embodiment.
FIG. 15 is a configuration diagram of an operating condition table stored in the exchange of the second embodiment.
FIG. 16 is a flowchart of table relocation processing executed in the exchange of the second embodiment.
FIG. 17 is an explanatory diagram of table relocation processing executed in the exchange of the second embodiment.
[Explanation of symbols]
10 exchange
11 Exchange Department
12 Audio signal generator
13 Connection controller
14 Storage unit
21 Representative telephone number table
22 Phone number table
23 Operating condition table
24 Standard operating condition table
30 subscriber terminals

Claims (8)

Storage means;
Obtaining means for obtaining, from a subscriber terminal, telephone numbers relating to a plurality of called terminals to which a call connection is to be attempted and a cancellation condition for stopping a call connection attempt to each called terminal;
Creation of a telephone number / operation condition table in which telephone numbers and cancellation conditions related to the plurality of called terminals are stored in the storage unit in association with predetermined identification information based on the information acquired by the acquisition unit Means,
When the predetermined identification information is input from a subscriber terminal, a specifying unit that specifies a telephone number / operation condition table corresponding to the predetermined identification information from the storage unit;
A means for attempting a call connection to a called terminal by sequentially using a telephone number and a cancellation condition stored in the telephone number / operation condition table specified by the specifying means, from the called terminal attempting the call connection When the cancellation condition is satisfied without being notified that the call connection is accepted, a call connection to another called terminal is attempted, and notification that the call terminal responds to the call connection without satisfying the cancellation condition is notified. And a connection means for connecting a call from the subscriber terminal to the called terminal. Storage means;
An acquisition means for acquiring, from a subscriber terminal, an access code, a telephone number relating to a plurality of called terminals to which call connection is to be attempted, and a cancellation condition for stopping the call connection attempt for each called terminal;
Based on the information obtained by the obtaining means, the access code and a telephone number / operating condition table in which telephone numbers and cancellation conditions relating to the plurality of called terminals are stored in the storage means as predetermined identification information. Creation means to create in association;
When the predetermined identification information is input from a subscriber terminal, a specifying unit that specifies a telephone number / operation condition table corresponding to the predetermined identification information from the storage unit;
It is determined whether information input from the subscriber terminal after the input of the predetermined identification information matches the access code stored in the telephone number / operation condition table specified by the specifying means. Judgment means,
Calling terminal using telephone number and cancellation condition stored in telephone number / operation condition table specified by said specifying means when it is determined that information from subscriber terminal and access code match. A means for initiating a call connection attempt to the other call terminal when the call termination condition is satisfied without being notified that the call connection terminal is attempting to accept the call connection. Connection means for connecting a call from the subscriber terminal to the called terminal when a call connection is attempted and the call receiving terminal is notified that the call connection is accepted without satisfying the cancellation condition. An exchange characterized by that. The acquisition means also acquires a representative telephone number used as predetermined identification information,
The specifying unit specifies a telephone number / operation condition table corresponding to the representative telephone number when information including a predetermined number and the representative telephone number is input.
3. The exchange according to claim 1 or 2, wherein 4. The method according to claim 1, wherein when the canceling condition is not acquired by the acquiring unit, the creating unit uses a predetermined canceling condition as a canceling condition for each called terminal. The exchange described in. The creation means creates a telephone number / operation condition table in which telephone numbers and cancellation conditions related to a plurality of called terminals are stored in a form in which the order of use is known,
The connection means uses the telephone number and the stop condition stored in the telephone number / operation condition table in order according to the order of use,
When a call connection is made by the connection means, the telephone number from the second highest order to the lowest order and the usage order of the cancellation condition are incremented by the first place, and the telephone number whose usage order is highest. 5. The exchange according to claim 1, further comprising updating means for updating the contents of the telephone number / operating condition table so that the use order of the stop conditions is lowest. The creation means creates a telephone number / operation condition table in which telephone numbers and cancellation conditions related to a plurality of called terminals are stored in a form in which the order of use is known,
The connection means uses the telephone number and the stop condition stored in the telephone number / operation condition table in order according to the order of use,
When a call connection is made by the connection means, the use order of the telephone number and the cancellation condition for each called terminal is determined at random, and the determined use order is given to the telephone number and the cancellation condition for each called terminal. 5. The exchange according to claim 1, further comprising update means for updating the contents of the telephone number / operating condition table. The acquisition means also acquires a weighting factor for each telephone number,
The creating means creates a phone number / operation condition table in which phone numbers, cancellation conditions and weighting factors for a plurality of called terminals are stored in a form in which the order of use is known.
The connection means uses the telephone number and the stop condition stored in the telephone number / operation condition table in order according to the order of use,
When a call connection is made by the connection means, the use order of the telephone number and the cancellation condition for each called terminal is randomly determined in consideration of the size of the corresponding weighting factor, and the determined use order is 5. The update apparatus according to claim 1, further comprising updating means for updating contents of the telephone number / operation condition table so as to be given to a telephone number and a cancellation condition relating to each called terminal. switch. Obtaining means for obtaining from a subscriber terminal telephone numbers relating to a plurality of called terminals to which call connection is to be attempted;
Storage means for temporarily storing the telephone number acquired by the acquisition means;
Means for initiating a call connection attempt using the telephone numbers stored in the storage means when a plurality of telephone numbers are obtained by the obtaining means, from a called terminal attempting the call connection; When a predetermined cancellation condition is satisfied without being notified that the call connection is accepted, a call connection to another called terminal is attempted, and the call connection is established from the called terminal without satisfying the predetermined cancellation condition. A connection means for connecting a call from the subscriber terminal to the called terminal;
An exchange comprising: a release unit that releases a storage area in the storage unit that is used to store the telephone number acquired by the acquisition unit upon completion of processing by the connection unit.

Images