JP3434157B2 - Telephone number list cleaning method and apparatus, and computer readable recording medium recording telephone number list cleaning processing program - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone number list for automatically performing, using a personal computer or the like, processing for deleting an invalid telephone number from a telephone number list included in a customer list such as so-called telemarketing. The present invention relates to a cleaning method and device, and a computer-readable recording medium in which a cleaning processing program for a telephone number list is recorded.

[0002]

2. Description of the Related Art A customer's telephone number list is extremely important information in various kinds of business using telephones, and management such as deleting unnecessary telephone numbers from the list does not reduce the value of the information. Need to be done from time to time.
The customer information registered in the list naturally includes fluid information, and the registered telephone number may be obsolete at some point, changed to another new telephone number, or originally The wrong phone number may be registered. Such invalid phone numbers must be removed from the list and the process of replacing the transferred new phone number with the old phone number in the list is required.

Conventionally, some work was executed for each customer according to the telephone number list, and the list was deleted or updated while confirming the response from each customer.
With this conventional method, depending on the content of the actual work, there may be a great amount of waste and irrationality. In other words, executing business even for an invalid customer who has to be deleted may result in unnecessary expense and may cause trouble to non-customers. In addition, for customers who have moved, we will do double work for the old telephone number area and the new telephone number area,
Time and money are wasted.

In order to eliminate this absurdity, the present applicants have previously developed the following telephone number list cleaning device (Japanese Patent Laid-Open No. 7-177214). A personal computer equipped with a network control circuit is connected to a telephone line as a subscriber terminal, and a personal telephone number list recorded on a floppy (registered trademark, hereinafter the same) disk is processed by this personal computer. The telephone numbers in the list are picked up in order to make a call to the telephone line network, and the reaction of the line to the calling operation is monitored. If a ringing tone is detected within a predetermined time after making a call,
If the polarity reversal is detected before that, it is determined that the calling telephone number is valid. If no ringing tone, polarity reversal, or busy tone is detected within the predetermined time, it is determined that the calling telephone number is invalid. This process is performed one after another according to the telephone number list to create a new list that distinguishes valid numbers from invalid numbers. The device is designed so as not to disturb the calling party as much as possible, and a device for recording a guidance voice to notify the change of the telephone number is also devised.

[0005]

When the telephone number list is cleaned by using such a telephone number list cleaning device, the response to the call is a signal other than the ringing tone and the busy tone without polarity reversal. In that case, the following processing was performed.

First, a signal on the line is recorded for a predetermined time, and then the operator intervenes to reproduce the recorded content to confirm whether or not there is a talkie recording by transferring a number. When the number transfer is recorded, the corresponding telephone number is replaced with the new telephone number to make it a valid number. Alternatively, the content analysis of the talkie performed by the operator is automatically performed by the voice recognition means, and the new telephone number is automatically processed as the valid number by the transfer number recognition means.

However, it takes considerable time and cost for the operator to analyze the contents of the talkie.
In addition, when content analysis is performed by voice recognition means,
The sound quality of the talkie was not so good, and there were cases where the transferee number could not be acquired accurately due to malfunctions and the like. In any case, because of the two steps of such recording process and content analysis, the transferee number could not be obtained quickly and accurately. In particular, when cleaning the telephone number list in which a huge number of telephone numbers are recorded at the time of transfer or transfer, that point is remarkable, which is a big problem.

Therefore, the present invention has been made in view of the above-mentioned problems, and its purpose is to replace the conventional talkie recording processing and content analysis thereof with an unused number or number by calling ISDN. It is to provide a fully automatic system that digitally detects whether or not a change has been made and, in the case of fast and accurate number change, obtains the new number after the change and reflects the result in the cleaning list.

[0009]

SUMMARY OF THE INVENTION A telephone number list cleaning method of the present invention is a public telephone line network and ISD.
A computer as a subscriber terminal is connected to N, and the following processes (1) to (7) are performed using the computer. A computer-based device that executes this process is the cleaning device of the present invention. Further, the computer-readable recording medium of the present invention stores a program for executing the following processes (1) to (7).

(1) A telephone number list to be cleaned is loaded into a computer, and dial signals of telephone numbers sequentially read from the telephone number list are sent to a public telephone line network to make a first call. At the same time, the reaction on the line to the dial signal sending operation is monitored.

(2) When a ringing tone is detected within a predetermined time after a call is made, or when a polarity reversal is detected before the ringing tone is detected, the line is immediately disconnected and the telephone number of the called caller is set. Judge as a valid number.

(3) If none of the ringing tone, the polarity reversal and the busy tone is detected within a predetermined time after the call is made, the line is disconnected and the ITU-
In addition to executing the circuit switching call control procedure specified in T. Recommendation Q. 931 as the calling terminal, the telephone number in this case is used as the called number, and unrestricted digital information or restricted digital information is specified as the transfer capability. The message is sent to the network to make a second call.

(4) When the disconnection message is transferred from the network without accepting the call of the transmitted "call setting" message, the disconnection recovery sequence is immediately executed, and the "disconnection" message from the network is executed. The reason display of the information element attached to is picked up.

(5) When the content of the reason display transferred from the network is "change subscriber number", obtain a new telephone number entered in the diagnostic information field attached to the reason display. Then, this telephone number is determined as a new number.

(6) When the content of the reason display transferred from the network is "missing number", the telephone number of the "call setting" message is determined as an invalid number.

(7) A new list is created by distinguishing the telephone numbers determined to be valid numbers, the telephone numbers determined to be new numbers, and the telephone numbers determined to be invalid numbers.

In the above cleaning process, when the busy tone for the first call is detected, the line is disconnected and the calling telephone number is instructed to repeat the call according to a predetermined procedure. Can be given.

When a signal having the same frequency as the ringing tone is detected within a short predetermined time immediately after the first call,
It is also possible to immediately disconnect the line and determine the calling telephone number as a valid number.

Further, depending on the content of the reason display, it is possible to suspend the determination of validity / invalidity of the telephone number and enter the telephone number in the reserved number list.

[0020]

DETAILED DESCRIPTION OF THE INVENTION

==== Basic System Configuration and Outline of Cleaning Process ==== An example of a system (cleaning device of the present invention) for carrying out a method for cleaning a telephone number list of the present invention is shown in FIG. Here, two computers, PC A and PC B, are used.

The personal computer A includes a CPU 1a, a memory 2a,
Hard disk device 3a, floppy disk device 4
a, a display 5a, a keyboard 6a, a mouse 7a and the like. The personal computer A is connected to a line control unit 8 including a signal discriminating circuit for discriminating the reaction of the line to the call while controlling the connection of the public telephone line network.

On the other hand, the personal computer B has the same hardware structure as the personal computer A, and is equipped with an ISDN communication board 9 for use as an ISDN terminal.
The DN communication board 9 is connected to the ISDN via a line connection unit (DSU) 10. As is well known, ISDN
And the telephone network are integrally interconnected.

The personal computer A and the personal computer B are LA
They are connected by an N transmission line 11 and can send commands to each other, grasp the status of mutual execution processes, and share hardware resources such as a hard disk. In other words, when it is determined that the personal computer A should execute the access processing to the public telephone line network and shift to the access processing to the ISDN, the instruction is transmitted from the personal computer A to the personal computer B and the personal computer B accesses the ISDN. The process is started.

The telephone number list to be cleaned is fetched from a recording medium such as a floppy disk recorded in a predetermined format or into the hard disk device 3a of the personal computer A via a communication network. Then, the list name is designated from the keyboard 6a or the mouse 7a to give a command for the cleaning process. Then CP
U1a reads the specified telephone number list from the hard disk device 3a, stores it in the memory 2a, and starts the cleaning process shown in the flowcharts of FIG. 2 and subsequent figures.

FIG. 2 is a basic flowchart relating to the cleaning process of the telephone number list according to the present invention.
It shows the contents of the main routine. The contents of the subroutine f1 (processing of S2) in this main routine are shown in the flowchart of FIG. 3 or FIG. 4, and the contents of the subroutine f2 (processing of S5) are shown in the flowchart of FIG. That is, the processing for accessing the analog telephone network by the first call is performed in the subroutine f1, and the processing for accessing ISDN by the second call is performed in the subroutine f2.

One telephone number is picked up from the telephone number list stored in the memory 2a in a predetermined order (S1), and the telephone number is called to start access processing to the public telephone line network. (S2). When a predetermined return value is returned from the subroutine f1 for executing the access processing to the public telephone line network to the main routine, the telephone number is called to the network and ISDN is issued.
The access process to access is started (S3 → S4 → S5).
When the ISDN access processing S5 is completed, it is determined whether the cleaning processing is completed for all the telephone numbers listed in the telephone number list (S6). on the other hand,
When the predetermined return value is not returned from the subroutine f1 to the main routine, the determination in S6 is immediately made without performing the ISDN access processing S5.

If all the phone numbers in the phone number list have not been completed, the next phone number is picked up again from the phone number list and the processes from S1 onward are executed. When all the cases are completed, the cleaning target telephone number list is updated to create and output a new telephone number list (S6 → S7).

Each telephone number processed in the above process is
It is classified and recorded in an output list such as a valid number list, a change number list, a holding number list, and an invalid number list. Here, in the valid number list, only the telephone numbers that have been normally operated in response to the call are entered. Then, these lists are sequentially displayed on the displays 5a and 5b during the execution of the cleaning process, and when the process is completed for all the telephone numbers in the input list including the recalling queue shown in step 205 of FIG. 4 described later, A notification to that effect is output to the display 5a or 5b.

At this stage, a new telephone number list is created by updating the telephone number list to be cleaned in a form reflecting the output list. This new telephone number list is stored in a storage medium such as a floppy disk or a magneto-optical disk in a predetermined format.

In the main routine, 1
Although the access processing to the public telephone line network is performed for each telephone number and the access processing to the ISDN is started by looking at the return value, the following processing flow may be adopted.

The first is a telephone number for which it is determined in advance that access processing to the public telephone network should be performed for all cases of the telephone number list to be cleaned and then access processing to ISDN should be performed. Only IS
The access processing to the DN is performed.

In the second, the access processing to the public telephone line network is sequentially performed for each telephone number. At that time, the telephone numbers determined to be transferred to the ISDN access process are sequentially recorded in the list. And I
The SDN access processing unit constantly monitors the list, and calls the ISDN for each telephone number recorded in the list for processing. That is, the access processing to the public telephone line network and the access processing to the ISDN can be performed independently and in parallel.

In addition to the processing shown in FIG. 2, the above two processings can be executed by one personal computer.

The outline of the cleaning process according to the present invention is as described above. Next, each of the access process to the public telephone line network and the access process to the ISDN corresponding to the subroutine of the main routine will be described in detail. .

==== Access processing to the public telephone line network ==== According to the subscriber line interface of the public telephone network, the response on the line to the call is one of the following. (A) Ringing tone: This is a signal notifying that the called party is ringing. (B) Busy tone: A signal notifying that the called party is busy with another person or that a line for calling the called party cannot be secured in the public telephone line network. (C) Breaking of loop current due to polarity reversal ... This signal notifies that the called party has taken off the hook of the handset. (D) Signals other than those mentioned above without polarity reversal. In the subscriber line interface, polarity inversion always occurs when the called party goes off-hook. Therefore, if a sound other than the ringing tone and busy tone is detected without polarity inversion, one of the following applies: To do. (D1) Talkie transmission due to number error ... Recorded voice transmitted from the exchange when an unused telephone number is used. It is a guidance voice such as "This telephone number is not used". (D2) Talkie transmission by number transfer ... Recorded voice transmitted from the exchange when the telephone number is changed due to address change. "The phone number has changed.
The new number is ** ". (D3) Special information sound ... A signal for notifying that the international automatic exchange is not talking or calling. (D4) Calling the called party without charge ... 1 of NTT (registered trademark)
No polarity reversal occurs for number calls such as 33 and toll-free (registered trademark) for which telephone charges are not charged.

In the present invention, the telephone numbers in the telephone number list are called one after another, and the response to the calling is (a).
The telephone number is determined to be a valid number and entered in the output list when the polarity reversal of (c) is detected before the generation of the ringing tone.

When the busy tone of (b) is detected, it is treated as if it cannot distinguish whether the called party is busy or the line cannot be secured. I will call again.

The ringing tone (a) is not accurately detected by discriminating it from its frequency and the intermittent pattern, but if a signal of the same frequency as the ringing tone is detected, it is regarded as the ringing tone.
Since this determination is performed in a very short time, the frequency of disconnecting the line by determining that it is a valid number before the ringing of the other party's telephone becomes high. This reduces the annoyance of the calling person to the calling bell.

When the response to the call is a signal other than the ringing tone and the busy tone without polarity reversal of (d), the access processing to the public telephone line network is ended and the access processing to the ISDN is started. To be done.

The first embodiment of the access processing to the public telephone line network is shown in the flowchart of FIG. First, the return value status is initialized (step 100), one picked-up telephone number data is passed to the line controller 8 and a call command is given, and the dial signal of the telephone number is sent through the telephone line to the network. And the calling operation is performed (step 101). Next, the timer T1 having a set time of about 10 seconds is triggered and the time-up of the timer T1 is checked (steps 102 → 103).

Until the timer T1 times out, it waits until some received signal is detected from the line (step 104). When the received signal is detected, it is checked whether it is a polarity inversion signal or a signal of a specific frequency (step 10).
5, 106). The signal of the specific frequency here is a signal of the same frequency as the ringing tone. Since the busy tone has the same frequency as the ring tone, if the ring tone or busy tone is received after the call is made, it is determined as YES in Step 106.

By the way, step 111 explained next
In the determination in step 112 or 112 or in steps 203 and 209 in FIG. 4 described later, the busy tone and the ringing tone are not discriminated only by their frequencies, but the intermittent patterns of each are analyzed to analyze the busy tone and the busy tone. The ring tone is detected accurately. However, in step 106, if the frequency of the received signal is a specific frequency, this is regarded as a ringing tone (or a busy tone) in a very short time.

If YES is determined in step 105 or 106, the line is immediately disconnected, the called telephone number is entered in the valid number list, the return value status is returned to the main routine, and the public telephone line network is returned. The access process to access ends (step 118 → 119 → 122). That is, if the signal received after the call is the same frequency as the ringing tone (busy tone), this is regarded as the ringing tone in a very short time and the telephone number is set as the valid number. As a result, the frequency at which the telephone number of the other party is determined to be a valid number and the line is disconnected before the ringing ring of the other party's telephone becomes high, and the other party's person is less annoyed by the ringing bell.

Now, although there is a received signal, step 1
If NO in either 05 or 106, or if the timer T1 times out with no received signal, the process proceeds from step 107 to step 108 to trigger the timer T2 for about 5 seconds and set the timer T2 time. Check up.

Until the timer T2 times out, the presence or absence of a received signal on the line is checked (step 1
09), if there is a received signal, it is judged whether the signal is a polarity inversion signal, a ringing tone, or a busy tone (step 11).
0,111,112). When the polarity reversal signal or the ringing tone is detected, the line is disconnected and the calling telephone number is entered in the valid number list (step 118 → 119).

On the other hand, when the ringing tone is not detected and the busy tone is detected, the line is disconnected and the telephone number is entered in the busy number list (step 113 → 114). The busy tone in this case is when the number of digits of the telephone number is insufficient, and therefore the call is not recalled.

If there is a received signal, but that signal is neither a polarity inversion signal nor a ringing tone or a busy tone,
Disconnect the line and turn on the return value status flag
(Step 115 → 116). If the timer T2 expires without detecting a received signal, the line is disconnected and the telephone number is entered in the error list (step 120 → 121).

The return value immediately before the end of the series of processes
The status is returned to the main routine, and the processing of this subroutine ends.

A second embodiment of access processing to the public telephone line network is shown in the flowchart of FIG. First, the return value status is initialized and a call is made to the network as in the first embodiment (steps 200 and 2).
01). Then, after waiting for an appropriate time (corresponding to the time until the operation of the subscriber exchange) in step 202,
In the processing after step 203, the reaction of the line to the call is monitored by the signal discriminating circuit of the line controller 8.

When a busy tone is first detected for the calling of a certain telephone number, the line is immediately disconnected (step 204) and the calling telephone number is entered in the recalling queue ( Step 205). Here, with respect to the telephone number for which the busy tone is detected in step 203, this is entered in the re-call queue so that the number becomes a call target in step 201 after an appropriate time. handle. However, when busy tone detection is repeated for calls of the same telephone number, this is added to the recalling queue,
If a busy tone is detected even if the number of calls is fixed, the telephone number is deleted from the recalling queue and entered in the busy number list.

Further, when the polarity reversal of the line is first detected for the calling of a certain telephone number (this is the case where the called side goes off-hook simultaneously with the calling), step 203 → 20.
The process proceeds in the order of 6 → 207 → 208, immediately disconnects the line, and writes the called telephone number in the valid number list.

Furthermore, when a ringing tone is first detected for the calling of a certain telephone number (the most common response), steps 203 → 206 → 209 → 207 → 2.
08, the process proceeds, and immediately disconnect the line as above,
Enter the telephone number that you called in the valid number list.

If no busy tone, polarity reversal, or ringing tone is detected for the calling of a certain telephone number, step 203 is performed.
The process proceeds from → 206 to 209, disconnects the line (step 210), and turns on the return value status flag (step 211).

As in the case of the first embodiment, the return value stat
Return us to the main routine, and the processing of this subroutine ends.

==== Outline of call setup sequence in ISDN ==== In the call setup sequence, a "call setup" message in which a predetermined telephone number is first set as a called number and unrestricted digital information is designated as a transfer capability. And send it to the network. In this call setup sequence, the ITU-T
Recommendation Q. Proceed according to the circuit-switched call control procedure detailed in 931. The control procedure of the circuit-switched call is explained in detail in various documents, and therefore, it will not be explained in detail in this specification, but a typical sequence proceeds as follows.

Upon receiving the "call setup" message from the calling terminal, the network sends a "call setup acceptance" message notifying the B channel to be used to the calling terminal and also sends a "call setup" message to the receiving terminal. By this, various performances required for the receiving terminal are specified, the receiving terminal side checks the performance, and the receiving terminal which confirms the conformance returns a "call" message to the network (the receiving terminal is calling). This "call" message is sent from the network to the calling terminal. When a response such as off-hook is made at the receiving terminal, a "response" message is sent from the receiving terminal to the calling terminal via the network, and in response, a "response confirmation" message is sent from the calling terminal to the network and from the network to the receiving terminal. Will be sent. This means that the "call setting" message has been accepted and the line has been connected.

In addition, the call requested by the calling terminal may not be accepted due to various reasons. In that case, the network sends a "disconnect" message to the originating terminal to perform the disconnect recovery sequence. At this time, in the reason display item of the information element accompanying the “disconnection” message sent from the network to the calling terminal, the reason why the call cannot be accepted is notified in the form of a reason number.

==== Reason display of "disconnect" message =
=== ITU-T Recommendation Q. In 931, the type and number of the reason display added to the “disconnection” message are defined as follows. 1. Normal class << reason number 1 Missing number >> This reason display indicates that the number was valid in terms of format, but because the number is currently missing, it cannot receive the call to the party requested by the calling user. << Reason No. 2 No Route to Specified Relay Network >> This reason message indicates that the device that is the source of this reason message has received a request to route the call through a special relay network that cannot be recognized. The device that is the source of this reason display does not have the relay network, or even if it exists, it is a special relay network that does not service the device that is the destination of this reason display. Therefore, it does not recognize the relay network. << Reason No. 3 No route to the other party >>
Indicates that the network routed the call cannot deliver the call to the called user because it does not receive the incoming request. << Reason No. 6 Channel unavailable >> This reason indication indicates that the channel selected as a result of the channel selection is unavailable to the transmitting terminal. << Reason No. 7 Incoming call to a channel for which a call has already been set >> This reason display indicates that the user has an incoming call, and that the incoming call is already set by the user as a similar call (for example, an X.25 virtual call in packet mode). Indicates that the channel is connected to << Reason No. 16 Normal disconnection >> This reason display indicates that the call is disconnected when one of the users involved in the call requests the recovery of the disconnection of the call. In normal state,
The source of this cause is not the net. << Reason No. 17 Called User Busy >> This reason display indicates that the called user cannot accept another call. In this case, the user equipment must have communication consistency for incoming calls. << Reason No. 18 No incoming user response >> This reason indicates that the other user has allocated time (call timer T303 defined in this specification
Or it is used when the message indicating "calling" or "response" is not returned within the expiration of T310). << Reason No. 19 Calling user / No response >> This reason is used when there is a notification of a call but no response is received within a specified time thereafter. This indication of reason is not necessarily caused by the JT-Q931 procedure, but may be caused by a timer in the network. << Reason No. 20 No subscriber >> This reason indicates that the mobile station is logged off (due to signaling procedures through the radio bus), or radio communication cannot be made with the terminating mobile station (for example, failure, out of range, or power loss). ) Indicates that. << Reason No. 21 Communication Rejection >> This reason indication is used to indicate that the device that sent this reason indication is neither busy nor inconsistent and can accept the call, but does not accept the call. << Reason No. 22 Change Other Party Subscriber Number >> This reason indication is to notify the calling user when the called number indicated by the calling user is no longer assigned. At this time, the new called number is included in the diagnostic information field. <Reason number 26: Recovery from disconnection of users not selected>
This reason indication indicates that the user could not get the incoming call. << Reason No. 27: Other terminal is out of order >> This reason display indicates that the callee's requested call could not be received because the callee interface was not functionally normal. This "functionally abnormal" means that the signaling message does not reach the other user. For example, there is a failure in the physical layer or the data link layer of the partner user interface, or when the user equipment is offline. << Reason Number 28 Invalid Number Format (Incomplete Number) >> This reason display indicates that the incoming call number cannot be received by the other user because the incoming number is in an invalid format or is incomplete. << Reason No. 29 Facility Rejection >>
Returned when the facility requested by the user cannot be provided by the network. << Reason for reason number 30 status inquiry >>
It is included in this "status display" message if the reason for generating the "status display" message is due to the receipt of the "status inquiry" message before generating it. << Reason No. 31 Other normal class >> This reason indication is used only for reporting the normal situation when the reason cannot be expressed for other reasons in the normal class. 2. Resource unavailable class << reason number 34 No line / channel available >> This reason indication indicates that there is currently no suitable line / channel available to handle the call. << Reason No. 38 Network failure >> This reason display indicates that the network is not functionally normal and that the state is likely to continue for a relatively long time. For example, there is a case where it is unlikely to be accepted even if the call is recalled immediately. << Reason No. 41 Temporary Failure >> This reason display indicates that the network is not functionally normal and is unlikely to continue for a long time. For example, if the user wants to call again almost immediately. << Reason No. 42 Switch Congestion >> This reason display is used to indicate that the switching device that has generated this reason is congested with high traffic. << Reason No. 43: Discard access information >>
Indicates that the network was unable to deliver the requested access information (user-user information, low-layer compatibility, high-layer compatibility or sub-address indicated in detailed information) to the other user. The special type of discarded access information may be included in the diagnostic information. << Reason No. 44 Request Line / Channel Unavailable >> This reason display is returned when the line or channel notified by the request terminal cannot be provided by the interface of the other party. << Reason No. 47 Other Resource Unusable Class >> This reason indication is used to report as a network congestion event only when another reason in the network congestion class cannot be applied. 3. Service Unavailable Class << Reason No. 49 QOS Unavailable >> This cause is used to report that the requested QOS (defined in Recommendation X.213) is not provided (eg throughput or transmission delay). Is not provided). << Reason No. 50 Requested Facility Not Contracted >> This reason display indicates that the requested supplementary service is not provided by the rope because the user has not completed the necessary administrative procedure for the network providing the facility. << Reason No. 57 Prohibition of Transmission Capability >> This reason display indicates that the user has requested a transmission capability that is not permitted to the user, although it is the transmission capability realized by the device that generated the reason display. << Reason Number 58 Currently Unavailable Communication Capacity >> This reason display indicates that the user has requested the currently unavailable communication capacity, which is the communication capacity realized by the device that generated the reason display. << reason number 63 Other service or option unavailable class >> This reason indication is used to report the service unavailable event only when the other reason indications of the service unavailable class are not applicable. 4. Service not-provided class << reason number 65 not-provided transfer capability designation >> This reason display indicates that the device that has transmitted the reason display does not support the requested transfer capability. << Reason number 66 unprovided channel type designation >> This reason indication indicates that the device that sent the reason indication does not support the requested channel type. << Reason Number 69 Not Provided Facility Request >> This reason indication indicates that the device that has transmitted this reason indication does not provide the requested supplementary service. << Reason No. 70 Limited Digital Information Transmission Capability >> This reason indication indicates that when a device requests unrestricted digital information transmission capability, only the limited digital information transmission capability out of the requested transmission capabilities of the device transmitting this reason indication. Indicates that it supports. << Reason No. 79 Other service or optional non-provided class >> This reason indication is used to report the non-provided service only when the other reasons of the non-provided service class are not applicable. 5. Invalid Message Class << Reason No. 81 Use Invalid Call Number >> This reason message indicates that the device that sent the reason message received a message with a call number different from the one currently used between the user and the network interface. << Reason Number 82 Use Invalid Channel Number >> This reason indication indicates that the device that sent the reason indication received a request to use a channel number that is not activated. For example, even though the user has subscribed to channels 1 to 12, the user equipment or network has channel numbers 13 to 2
This is the case when the use of 3 is tried. << Reason No. 83 Specified suspended call identification number unused >> This reason display indicates that a call with a call identification number different from the call identification number used for the suspended call was attempted to be resumed. . << Reason No. 84 Busy call identification number in use >> This reason is used to indicate that the network has received a call suspend request, but this suspend request is already used as a suspend call identifier in the interface area where the call may be resumed. Indicates that the call identification (including the case where nothing is done) is included. << Reason No. 85 No suspended call >> This reason indication indicates that the network has received a call resumption request. However, the call identification contained in the call resumption request indicates that the call resumption is not currently used for a suspended call in the interface area where the call resumption may occur. << Reason No. 86 Specified suspended call disconnection recovered >> This reason display indicates that the network has received a restart request, but this restart request includes the call identification once notified as a suspended call. Indicates that the connection has already been disconnected (due to user disconnect recovery or timeout). << Reason No. 87 The user is not a CUG member >> See the supplementary service specifications. << Reason No. 88 Terminal Attribute Mismatch >> This reason indication indicates that the device that sent the reason indication cannot match the lower layer consistency, the higher layer consistency, or another consistency attribute (example =
Indicates that a request for call setup with data rate) has been received. << Reason No. 91 Invalid Relay Network Selection >> This reason display indicates that the relay network classification has been received, but is in an incorrect format as defined separately. << Reason No. 95 Other Invalid Message Class >> This reason indication is used to report an event of the invalid message class only when another reason of the invalid message class cannot be applied. 6. Incorrect procedure (eg, unrecognized message) Class << Reason No. 96 Insufficient mandatory information elements >>
Indicates that when the device that sent the reason indication received the message, the information elements (required information elements) that had to be present in the message were insufficient. <Reason No. 97 Message type undefined or not provided>
This cause indicates that the device that sent the cause received an undefined message in the device or a message with an unrecognized message type that is defined but not provided. << Reason No. 98 Call state does not match message or message type is undefined >> This reason message indicates that the device that sent this reason message does not agree with the message received during the specific call state in the process Indicates that a "status display" has been received indicating a call status that has not been established. << Reason No. 99 Information element undefined >> This reason indication is used when the information element identifier of the device that sent the reason indication is undefined, or when a message including an information element that is defined but not provided is received. . It should be noted that the information element is limited to the case where the device that has transmitted this reason is not necessary to process the message. << Reason No. 100 Invalid information element content >> This reason indication is an information element provided by the device that sent the reason indication, but an information element that is a code not provided by one or more fields of the information element. Is received. << Reason No. 101: Call state and message do not match >> This reason display is used when the received message does not match the call state. << Reason No. 102 Recovery by Expiration of Timer >> This reason indication indicates that the procedure is started by the expiration of the timer according to the error processing procedure of the layer 3 specifications. << Reason No. 111 Other procedure error class >> This reason indication is used to report a procedure error event only when another reason of the procedure error class cannot be applied. 7. Intower Kinda Class << Reason No. 127 Other interworking classes >>
This reason display indicates that interworking has occurred on the network such that there is no reason display for operation. Therefore, the exact reason indication for the message to be sent cannot be confirmed.

==== Access Processing to ISDN ===
= Now, an embodiment of access processing to the ISDN is shown in the flowchart of FIG. First, the call setting sequence 300 for calling a telephone number that should be transferred to the ISDN access process in the public telephone line access process is started.

In the call setting sequence 300, when the call of the sent “call setting” message is accepted and the “call” message or “response” message is transferred from the network, step 302 or step 303 to step 305 → Go out to the process of 306 → 307,
Immediately, a "disconnect" message is sent to the network, a disconnection recovery sequence is executed, and the telephone number of the "call setup" message is determined to be a valid number and entered in the valid number list.

Further, in the call setting sequence 300, when the call of the sent “call setting” message is not accepted and the “disconnect” message is transferred from the network, the process exits from step 304 to step 308 → 309. , Immediately execute the disconnect recovery sequence,
Pick up the reason display of the information element attached to the "disconnection" message from the network, and depending on the content of the reason display,
The validity / invalidity and the hold of the telephone number of the “call setting” message are determined.

(A) Valid number The reason display picked up in step 309 is as follows: "Reason number 3 No route to the other party"<< Reason number 7 Incoming call to channel for which call has been set >><< Reason number 16 Normal disconnection >><< Reason No. 17 Destination user busy >><< Reason number 18 No incoming user response >><< Reason number 19 Calling / No response from incoming user >><< Reason number 20 No subscribers >><< Reason number 21 Communication refusal >> 《Reason No. 49 QOS unavailable》 《Reason No 50 Requested facility non-contract》 《Reason No 57 No communication capacity allowed》 《Reason No 58 Currently unavailable communication capacity》 《Reason No 63 Other service or option unavailable class 》 《Reason No. 65 Unprovided communication capability designation》 《Reason No 66 undesignated channel type designation》 《Reason No 69 unprovided Facility request >> Reason number 70 Restricted digital information transmission capability << Reason number 79 Other service or optional class not provided >> Reason number 88 Terminal attribute mismatch The above telephone number is recognized as a valid number, and the telephone number is entered in the valid number list (step 310 → 311).

(B) When the reason display picked up in the number change step 309 is "reason number 22 change other party subscriber number", a new telephone number entered in the diagnostic information field of the reason display is picked up, The new telephone number that picked up the telephone number of the "call setting" message is compared with the telephone number that made the call, and is entered in the changed number list (steps 310->312-> 313).

(C) Invalid number When the reason display picked up in step 309 is one of "reason number 1 missing number", "reason number 2 no route to the designated relay network", and "reason number 6 channel unavailable" Recognizes the telephone number of the “call setup” message as an invalid number and writes the telephone number in the invalid number list (step 310 → 312 → 314 → 315).

(D) If the reason display picked up in the judgment holding step 309 is not one of the reason numbers checked in steps 310, 312, and 314, the telephone number of the "call setting" message is also regarded as a valid number. Fill in the holding number list without judging it as an invalid number (step 310 → 312 → 314).
→ 316).

The process for accessing the ISDN is completed as described above.

==== Actual operating condition in access processing to ISDN ==== Most of the telephone numbers are subscriber numbers of the analog telephone network, and recently the subscriber numbers of ISDN (INS net 64) are gradually increasing. It is increasing. When a call is made to such a current telephone network by the above-mentioned access processing to ISDN,
The following response is made between the personal computer B and the ISDN exchange (network).

(A) When the called telephone number has been changed, the network returns a "disconnect" message with << reason number 22 changed subscriber number >>. In response to this, the personal computer B picks up the new telephone number written in the diagnostic information field of the reason display, compares the new number with the called number, and writes it in the changed number list.

(B) When the called telephone number is an unused number, the network returns a "disconnection" message with << reason number 1 missing number >>. In response to this, PC B writes the telephone number in the invalid number list.

(C) When the called telephone number is a valid ISDN subscriber number In this case, the exchange changes depending on the situation of the partner equipment.
When a call is made at the receiving terminal (the other party) by the "call" message from the personal computer B and the other party answers the call, step 30 in the flowchart of FIG.
5 → 306 → 307), the disconnection recovery sequence is started and the telephone number is entered in the valid number list. Even when a "disconnect" message is returned from the network, the reason number is # 7, # 16, # 17, # 18, # 19, # 20, # 2 as described above.
1, # 27, # 49, # 50, # 57, # 58, # 6
If it is any of 3, # 65, # 66, # 70, or # 79, enter the telephone number in the valid number list, and if the reason number is # 2 or # 6, enter the telephone number in the invalid list. However, if the reason number is other than this, fill in the pending list.

It should be noted that it may be considered that the explanation in the embodiment is not the best way to classify each reason number into "valid", "invalid", and "hold". ISD
A more detailed examination of the usage situation of N subscribers and the reaction of the network to it, and it is appropriate to classify some reason display as "valid" rather than "hold", or as "invalid". May be appropriate. The present invention does not prevent such flexible operation.

==== Supplementary Information ==== In this embodiment, two personal computers are provided for each of the public telephone line and the ISDN line, but a larger number of personal computers are provided for LAN ( Local Area Netwo
rk) or WAN (Wide Area Network), and it is desirable to configure a system by distributing an appropriate number of personal computers among them for public telephone line network access processing and ISDN access processing.

At this time, the line control unit 8 and its related circuit portion and the DSU 10 are expanded in function so as to support a plurality of lines, a line is assigned to each personal computer, and a list of telephone numbers to be cleaned is appropriately grouped. And divide the list, and let the multiple computers share the cleaning process of the divided list.
It can be done in parallel.

Furthermore, personal computers are respectively connected to telephone lines or ISDN lines in a plurality of appropriately distributed areas in a wide area telephone line network, and the wide area telephone line network is divided into a plurality of narrow areas by these plural computers. Thus, the cleaning process can be shared and finally the results of the cleaning process can be aggregated into one.

By doing so, the cleaning processing of the telephone number list in which a huge number of telephone numbers are recorded is performed.
It can be done quickly and accurately.

[0076]

As described in detail above, according to the present invention, a telephone that is disabled without performing any actual business (some interaction with the customer) based on the telephone number list to be cleaned. Numbers can be deleted automatically and efficiently, and even new phone numbers that have changed can be replaced automatically. Therefore, it is possible to eliminate inconveniences such as wasteful expenses and annoyance to non-customers by executing business even for invalid customers who have to be deleted.

In particular, since the rewriting / updating process of the telephone number list can be efficiently and promptly performed by accessing the ISDN, it is possible to transfer the customer to both the old telephone number place and the new telephone number place. The inconvenience of conducting heavy work and wasting time and money can be eliminated.

Incidentally, without accessing the public telephone line network,
It is possible to clean the telephone number list without making a call to the destination telephone by connecting only to the ISDN whose subscriber number is gradually increasing recently.

However, at present, the capacity of the ISDN-compatible digital exchange is overwhelmingly smaller than the capacity of the analog exchange, so if ISDN is called one after another,
Congestion is very likely to occur and is a great nuisance to other telephone subscribers.

In this respect, in the cleaning process according to the present invention, a considerable number of cleaning processes are completed by the first call to the analog telephone network, and the ISD is generated by the second call.
Since the number of access to N is drastically reduced, the possibility of congestion is much smaller than that when only ISDN is called.

[Brief description of drawings]

FIG. 1 is a hardware configuration diagram of a system for executing a telephone number list cleaning method according to an embodiment of the present invention.

FIG. 2 is a basic flowchart showing an outline of a main routine of a cleaning process in the same embodiment.

FIG. 3 is a flowchart showing an outline of access processing to a public telephone line network corresponding to a subroutine f1 of the main routine.

FIG. 4 is a flowchart showing an outline of another access process to the public telephone line network corresponding to the subroutine f1 of the main routine.

FIG. 5 is a flowchart showing an outline of access processing to an ISDN corresponding to a subroutine f2 of the main routine.

[Explanation of symbols]

1a, 1b CPU 2a, 2b memory 3a, 3b Hard disk drive (HDD) 4a, 4b floppy disk device (FDD) 5a, 5b display 6a, 6b keyboard 7a, 7b mouse 8 line control unit 9 ISDN communication board 10 DSU (line connection device) 11 LAN transmission line

Claims (6)

(57) [Claims] 1. A telephone number list characterized in that a computer as a subscriber terminal is connected to a public telephone line network and an ISDN and the following processes (1) to (7) are performed using the computer. Cleaning method. (1) The telephone number list to be subjected to the cleaning process is taken into the computer, the dial signals of the telephone numbers sequentially read from the telephone number list are sent to the public telephone line network to make the first call, and the dialing is performed. Monitor the reaction on the line to the signal sending operation. (2) When a ringing tone is detected within a predetermined time after making a call,
And if a polarity reversal is detected before the ringtone is detected,
Immediately disconnect the line and determine the calling telephone number as a valid number. (3) When none of the ringing tone, the polarity reversal, and the busy tone are detected within a predetermined time after making a call,
Disconnect the line, and ITU-T Recommendation Q.9 for ISDN
In addition to executing the control procedure of the circuit-switched call specified in No. 31 as the calling terminal, the telephone number in this case is used as the called number, and the "call setting" message in which the unrestricted digital information or the restricted digital information is specified as the transmission capability is transmitted through the network To make a second call. (4) When the disconnection message is transferred from the network without accepting the call of the transmitted “call setup” message, the disconnection recovery sequence is immediately executed and the “disconnection” message from the network is attached. Pick up the reason display of the information element. (5) When the content of the reason display transferred from the network is “change other party's subscriber number”, the new telephone number entered in the diagnostic information field attached to the reason display is acquired, and this Determine the phone number as a new number. (6) When the content of the reason display transferred from the network is "missing number", the telephone number of the "call setting" message is determined as an invalid number. (7) A new list is created by distinguishing the telephone numbers determined as valid numbers, the telephone numbers determined as new numbers, and the telephone numbers determined as invalid numbers. 2. In claim 1, when the busy tone for the first call is detected, the line is disconnected, and the call for the called telephone number is repeated according to a predetermined procedure. A method of cleaning a telephone number list, characterized by giving instructions. 3. The telephone number according to claim 1, wherein when a signal of the same frequency as the ringing tone is detected within a short predetermined time immediately after the first call, the line is immediately disconnected and the call is made. A method for cleaning a telephone number list, which is characterized by determining that the number is a valid number. 4. The method according to any one of claims 1 to 3, wherein depending on the content of the reason display, the determination whether the telephone number is valid or invalid is suspended and the telephone number is entered in the suspension number list. How to clean the phone number list. 5. A telephone number list cleaning device mainly composed of a computer that executes the telephone number list cleaning method according to claim 1. Description: 6. A computer-readable recording medium recording a program for executing the procedure of the method for cleaning a telephone number list according to claim 1.