JP4420265B2 - Telemarketing device and program thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a telephone number cleaning system, and more particularly to a self-supporting telephone number cleaning system capable of automatically outputting a determination of a telephone number to be investigated using a telephone number database including at least telephone number history information.
[0002]
[Prior art]
In recent years, a computer for transmitting a telephone number that uses a computer to automatically check the usage status of a telephone number has been developed. Using this device, the phone number history information including the current and past history of phone numbers such as phone number change information and usage status is accumulated, and the survey results can be easily provided in a short time when checking "address, phone number" Can also provide the accumulated phone number history information to the terminal side upon request via a communication line such as the Internet, etc. Also, the phone number history information is automatically updated, providing the telephone number usage status survey A system was developed by the present applicant (Japanese Patent Laid-Open No. 2000-316048).
[0003]
On the other hand, each company and organization that owns and manages a large amount of customer information must purchase the entire system and connect it to an NTT telephone line in order to use the telephone number usage status survey and provision system. , Was entrusted to an external dedicated contractor.
[0004]
[Problems to be solved by the invention]
The telephone number usage status survey and provision system is a large-scale and expensive system, and has a problem in price and installation location. Furthermore, it took a lot of time to transmit the telephone numbers to be investigated at any time, and to organize, classify and judge the large number of telephone number history data investigated. In addition, it takes a lot of time to purchase and process a large amount of telephone number history data from an external supplier via the Internet, and there is a problem in terms of safety.
[0005]
The present invention provides a self-supporting telephone number cleaning system capable of automatically executing a desired telephone number usage situation investigation and telephone number determination in a user computer without providing a large-scale and expensive system. It is.
[0006]
It is an object of the present invention to provide a program that is incorporated into a self-supporting telephone number cleaning system and gives a determination of a telephone number to be investigated.
Moreover, this invention is providing the telemarketing apparatus using the telephone number investigation result of the investigation object output from a self-supporting telephone number cleaning system.
[0007]
[Means for Solving the Problems]
The telemarketing apparatus of the present invention is configured to display the reasoning information returned from the digital exchange for every subscriber telephone number existing in the country by the telephone number transmission computer apparatus, the destination telephone number and the survey date included in the message, and the past The storage means for storing the telephone number database classified for each subscriber telephone number is provided as the history of the telephone number, the control means provided in the computer executes the determination program while referring to the telephone number database, and the reason for the telephone number to be investigated If the display is normal for the past one to three years from the present and is being used continuously, the telephone number to be surveyed is determined as the long-term resident telephone number, and the reason for the telephone number to be surveyed is displayed from the missing number Whether the relocation destination telephone number relocated one month before the survey date that changed normally matches the surveyed telephone number. If there is a matching destination telephone number that is searched, the survey telephone number is determined as the moving-in telephone number, and a new telephone subscriber list classified into the long-term resident telephone number and the moving-in telephone number is created. To do.
For example, as shown in FIG. 1, the telephone number database 11 can include residential map information, telephone number area residential information, and telephone directory data. Moreover, the 2nd memory | storage means to memorize | store the telephone number database 14 of the telephone number subscriber used as investigation object can be further provided. The telephone number database 11 can be updated with the latest information via a communication line or a transportable recording medium.
[0008]
The telemarketing apparatus of the present invention has a storage means for storing a telephone number database including at least telephone number history information, and a control means for referring to the telephone number database and executing determination of a desired telephone number subscriber according to a telephone subscriber determination program. And means for accessing the telephone number of the telephone subscriber selected based on the determination result for the required telemarketing.
[0009]
The program of the present invention is for determining a telephone number to be investigated using a telephone number database including at least telephone number history information and telephone directory data, and is based on the telephone number history information A function for giving a first determination when the mobile phone is continuously used for a predetermined period of time, and referring to the old and new telephone directory data for the subscriber of the surveyed telephone number that has obtained the first determination, A function that gives a second judgment when only the surname matches, and the subscriber's address matches the subscriber of the surveyed telephone number that has obtained the first judgment by referring to the old and new telephone directory data In this case, the computer is caused to realize the function of giving the third determination. In addition, when the new telephone number acquired in the investigation process of the investigation target telephone number exists in the history information of the investigation target telephone number and the new telephone number is unused before the new establishment, a fourth determination is given. When the function and the new telephone number acquired in the investigation process of the investigation target telephone number are present in the history information of the investigation target telephone number and the new telephone number is used before the establishment, the fifth determination is given. Functions can be realized on a computer.
[0010]
The program according to the present invention also causes the computer to realize a function of giving a sixth judgment by obtaining a non-payment fee period from the telephone number history removal period from the telephone number history information when the telephone number to be surveyed is removed. be able to. Moreover, when the address of the telephone number to be investigated is in the house map information, a function for giving a seventh determination can be realized in the computer. In addition, when the surveyed telephone number shifts from unused to normal use and the transfer is from a used telephone number other than the surveyed telephone number, a function for giving an eighth determination and the surveyed telephone number The computer can be realized with a function of giving a ninth determination when the state is shifted from unused to normal use and the transfer is not from a used telephone number other than the subject telephone number.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a diagram showing the overall configuration of a telephone number cleaning system including a self-supporting telephone number cleaning system according to the present invention. As shown in FIG. 1, a self-supporting telephone number cleaning system 1 is connected to a server computer 3 via a communication line 2 such as the Internet. The self-supporting telephone number cleaning system 1 and the server computer 3 may be electrically and physically separated. The server computer 3 includes a hard desk 4 in which telephone number history information is stored for each telephone number. Further, the hard disk 4 has a storage area for storing residential map information, outline map information, a storage area for storing attribute information such as a customer's corporation, personal telephone number, address, company telephone number, credit information, etc. There are provided a storage area for storing a number area (city and area code) and address information of the area linked to each other, and a storage area for storing telephone book data. The server computer 3 stores a program for checking a telephone number change destination address and a program for supporting acquisition, storage, search, etc. of history information, and reads out these programs as necessary to perform necessary operations.
[0013]
The telephone number usage status investigation and provision apparatus surrounded by a thick line in FIG. 1 is configured to collect data of a large number of subscriber telephone numbers periodically or collectively at any specified time. The hard disk included in the computer 21 is provided with a telephone number table for storing all telephone number information existing in the country. The computer 21 includes n telephone number transmission computer devices 22. ₁ , 22 ₂ , 22 _Three ..., 22 _n Connected in parallel. Each telephone number transmission computer device 22 is connected to an NTT digital exchange 23, and the telephone number transmission computer device in charge of each telephone number transmission computer, a mobile phone, etc. are investigated. This latest survey result is sent to the server computer 3 to update the accumulated telephone number history information.
[0014]
The telephone number information survey is performed by a dedicated telephone number transmission computer device 22. ₁ , 22 ₂ , 22 _Three ..., 22 _n The ISDN line is used to make a call to the telephone number to be investigated in a timely manner, and the reason indication notified by the NTT exchange 23 is collected by digital communication.
[0015]
The telephone number history information collection process (which is a part of the regular processing in FIG. 1) is performed periodically, such as once a month or once every two months. The contents investigated by the telephone number transmission computer device 22 are to collect the reason display (see FIG. 2) defined by TTC standard JT-Q931 as a result of the telephone number transmission on the digital telephone line via the digital switch 23. The work after collecting the reason display is completed and the telephone is immediately disconnected. Therefore, there is no conversation with the other party of the telephone number, and the telephone ring is not ringed. By examining the above all telephone number tables, the reason display in FIG. 2 is found for each telephone number, and the surveyed “destination telephone number included in the message information”, etc., etc. are further investigated in a predetermined procedure. It can be recorded on the hard disk 4 of the server computer 3. Further, by periodically conducting this investigation, the telephone number change information is accumulated, and the telephone number history information of the server is gradually enriched and completed.
[0016]
The self-supporting telephone number cleaning system 1 is usually provided in a company that requires a large amount of telephone number cleaning. Any user's electronic terminal (such as a PC) can be provided as necessary. The self-supporting telephone number cleaning system 1 is provided with arithmetic, control, display functions and the like necessary for a normal computer, and in particular, a telephone number database 11 and a telephone subscriber determination program for automatically determining telephone subscribers. 12, a telephone number automatic cleaning program 13 and a survey target database 14 are provided. The telephone number database 11 stores telephone number history information, house map information, telephone number area / house information, and telephone directory data stored in the server computer 3 described above. The telephone number history information is stored in the server computer. It can be updated to the latest telephone number history information in the country or a specific area via a CDROM copied from 3 etc. or via a communication line. The telephone number database 11 may be provided on the hard disk of the user's electronic terminal or an external storage medium provided in the electronic terminal, or may be provided in a storage area of another electronic device and connected via a communication line. The house map information, telephone number area / house information, and telephone directory data are updated to the latest information as necessary. The survey object database 14 stores customer information that is a survey object including the telephone number of a customer dedicated to an individual company that uses the system 1, and the survey database 14 is a terminal connected to the system 1. (Investigator etc.) Updated, added, or deleted by information sent from 15 via a communication line or recording medium. In addition, the system 1 uses the telephone number database 11 in response to a survey request from the terminal 15, and distributes the survey result obtained in the system 1 to the terminal 15 or transmits it via a recording medium.
[0017]
FIG. 2 is a typical example of a reason display returned from the exchange when a telephone number is transmitted on the ISDN telephone line. The reason indication from the digital exchange follows the basic call control procedure of the circuit-switched call defined in Q.931 by the TTC standard based on the CCITT recommendation. NTT publishes the reason in the technical document of INS net service. The telephone number transmission computer apparatus collects JT-Q931 (Layer 3) information using call control messages (call setting, answer, call, disconnect, release) with the digital exchange. The reason display from the digital exchange includes “001: missing number”, “016: normal”, “022: subscriber number change”, “028: number error”, etc., which are classified into necessary types and simultaneously The investigated processing date, time, etc. are registered in the hard disk 4 of the server computer 3. The survey information can also be stored in the hard disk of the telephone number transmission computer device.
[0018]
In addition to “in-use telephone number” and “unused telephone number”, the reason display from the switchboard is broadly divided into “A: a telephone number that can be removed even if it is in use”, “B: unused. Even if it is a phone number (telephone number during message guidance for moving to), (phone number during message guidance for contact), and "C: (telephone number during message guidance for number error), (message not currently used) “Telephone number being guided)”, “D: phone number whose unused phone number is currently in use in the previous survey” and the like are particularly important reasons A, B, and D above.
[0019]
As for the above A, most of those who have not paid their fees are credit information regarding various applications. Furthermore, for B, it will be a message such as “Not currently in use” or “Please try again”, so collect it during the period when you are providing the transfer phone number and contact phone number. You can find out the phone number of the other party that you can no longer contact. In addition, it will be a phone number that should be considered carefully for customers who have applied with the corresponding phone number of D. These are important information.
[0020]
The contents investigated by the telephone number transmission computer device 22 are to collect the reason display (see FIG. 2) stipulated by the TTC standard JT-Q931 as a result of the telephone number transmission on the digital telephone line via the digital switch 13. The work after collecting the reason display is completed and the telephone is immediately disconnected. Therefore, there is no conversation with the other party of the telephone number, and the telephone ring is not ringed. By examining the above all telephone number tables, the reason display in FIG. 2 is found for each telephone number, and the surveyed “destination telephone number included in the message information”, etc., etc. are further investigated in a predetermined procedure. It can be recorded on the hard disk 4 of the server 3. Further, by periodically conducting this investigation, the telephone number change information is accumulated, and the telephone number history information of the server is gradually enriched and completed.
[0021]
FIG. 3 shows an example of the telephone number history information layout and the telephone number history information stored in the hard disk. As shown in the phone number history information layout, the "phone number" that is the subject of the survey for each survey and the "new subscriber number" that is the relocation or contact phone number found at the time of the survey are returned from the exchange. “Reason display”, presence / absence of phone book entry, name / address listed in the phone book, “phone book publication” to store the address and presence / absence of the telephone number subscriber's home map (building name, number, room (Including confirmation) “House map”, “Survey date”, “Judgment status” that memorizes the status of the telephone number subscriber, and “Other layer information” related to the layer returned from the exchange Memorized and registered. In addition, the telephone number “03-3359-0906” is investigated as an example of the telephone number history information, and the investigation information is sequentially stored and stored in the above-described layout for each investigation and accumulated as history information. It should be noted that after the telephone number is transferred and the contact telephone number is identified, the contact telephone number is registered as the “telephone number” to be investigated next time.
[0022]
FIG. 4 is an example of an address information table related to a city / city code. The “corporate name / individual name” that owns the “telephone number”, the address, and the postal code can be obtained from information provided by NTT. However, it is not possible to specify a relocation address such as a relocation telephone number (contact telephone number) that was found in the survey. By the way, since NTT publishes the address information together with the area code and the local area code, it is possible to use this information. In addition to prefectures and municipalities, there are also areas where you can specify the town and chome. Therefore, it is found that the destination telephone number has moved to a certain area from the area code and the city code. Figure 4 Has a storage area for storing “area code”, “city code”, and “area address” (prefecture, city, large letter, character / chome) related to this area code. . It is also important that the address area of the relocation address is identified by the relocation destination telephone number or the like. By linking with a well-known housing map system, the relocation address area can be displayed on the map, and the relocation address can be easily searched from the customer name in the corresponding area. In particular, there is a method that does not rely on manual operation by creating software that uses software information published by NTT in the NTT telephone number search service (ANGEL-LINE), which can be used for specifying addresses by linking with a navigation system or the like. It becomes possible. According to this method, the application can be applied to a system capable of automatically directly searching the NTT telephone directory database and specifying the address of the destination telephone number by giving the destination telephone number, customer name and address area information.
[0023]
The self-supporting telephone number cleaning system 1 of the present invention uses a telephone number database 11, a telephone subscriber determination program 12, a telephone number automatic cleaning program 13, and a survey target database 14 to automatically and easily select a desired survey target telephone number. It is configured to obtain the subscriber's determination result and prevent the expected damage of the company in advance, and obtain the latest information on the telephone number to be investigated.
[0024]
Next, various determination programs incorporated in the telephone subscriber determination program 12 will be described. FIG. 5 shows a flow of a program for giving a determination of being a long-term resident. In step S1, the telephone number to be investigated, the name of the telephone subscriber, and the address are read from the investigation target database 14. Next, the process proceeds to step S2, where it is searched from the telephone number history information in the telephone number database 11 whether the telephone number to be investigated is continuously used for a predetermined period. If the telephone number is not continuously used, the program is terminated and continued. If it is used, the process proceeds to step S3, and the determination of being a long-term resident is added to the history information of the corresponding telephone number (high credit is given). Next, the process proceeds to step S4, where the new and old telephone directory data in the telephone number database 11 are searched. If the surname of the subscriber of the surveyed telephone number matches and the first name does not match, the process proceeds to step S5 and the long-term resident This determination is replaced with a determination of name change. Following step S5, if NO is determined in step S4, the process proceeds to step S6. If the addresses of the new and old phone book data match, the program ends. If not, the process proceeds to step S7. . In step S7, since there is no change in the telephone number, determination of neighborhood transfer is added.
[0025]
FIG. 6 shows a flow of a program for giving a determination of a relocation person. In step S11, a telephone number to be investigated is read from the investigation target database 14. Next, the process proceeds to step S12, where the telephone number database 11 If there is no new telephone number guidance history in the history information corresponding to the investigation target telephone number, the program is terminated. If there is such a history, the process proceeds to step S13. In step S13, it is determined whether the new telephone number that has been guided is an unused telephone number before the start of the guidance. 11 If the use is found, the process proceeds to step S14, where the determination of changing the contact is added and the program is terminated. If the guided new telephone number has not been used before the start of the guidance, the process proceeds to step S15, and a determination that the survey target telephone number has been transferred is added. Next, the process proceeds to step S16, where the address area corresponding to the area code and city code of the new telephone number that has been guided is searched from the telephone number area / house information in the telephone number database 11, and the corresponding address area map is stored in the house. Search and display from map information. Further, the process proceeds to step S17, and the approximate moving distance is estimated from the old telephone number (survey target telephone number) and the telephone number area / house information of the transferred telephone number. Next, in step S18, when the estimated transfer distance is equal to or greater than the predetermined distance, the process moves to step S19, and the determination of the long distance transfer is added.
[0026]
FIG. 7 shows a flow of a program for giving a determination of a non-payment person. In step S21, a telephone number to be investigated is read from the investigation target database 14. Next, the process proceeds to step S22, and if the history information corresponding to the telephone number to be investigated in the telephone number database 11 is currently removed, the steps S23 and S24 are sequentially executed to calculate the convenience removal period from the past history information. A determination as a non-payment period is added.
[0027]
FIG. 8 shows a flow of a program for determining whether or not the residential map information of the telephone number subscriber address is published. In step S31, the telephone number and address of the survey target are read from the survey target database 14. Next, the process proceeds to step S32, and if the address corresponding to the survey target telephone number does not exist in the house map of the telephone number database 11, the process proceeds to step S33, and a determination that the address does not exist in the map is added. If it exists on the house map, the process moves to step S34, and it is searched on the house map whether it is an apartment house (building, condominium). If it is not an apartment house, the process moves to step S35, and a determination is made that the address corresponding to the survey target telephone number exists on the house map. If it is determined that the house is an apartment house, the process proceeds to step S36, where steps S36 and S37 are sequentially executed, and detailed house information such as the building name, number of floors, and the number of rooms listed in the house map information together with the determination that the house map exists. Added.
[0028]
FIG. 9 shows a flow of a program for determining a new telephone number. In step S41, a telephone number to be investigated is read from the investigation target database 14. Next, the process proceeds to step S42, where the telephone number history information corresponding to the telephone number to be investigated in the telephone number database 11 is searched. If the telephone number has changed from the unused state to the used state, the process proceeds to step S43. In step 43, it is searched whether or not the investigation target telephone number matches the list of the transfer destination telephone numbers transferred within the predetermined period. If there is a matching transfer destination telephone number, the process proceeds to step S44, and the investigation target telephone number is searched. Is added to the judgment that it is a transfer telephone number. If there is no matching transfer destination telephone number, the process proceeds to step S45, and a determination is made that the investigation target telephone number is a new telephone number.
[0029]
FIG. 10 shows a flow of a program for giving a credit judgment. In step S51, the telephone number, home telephone number, and work telephone number to be investigated are read from the investigation target database 14. Next, in step S52, each telephone number history information corresponding to the home telephone number and work telephone number to be investigated is searched in the telephone number database 11, and it is checked whether or not the determination of the new telephone number has been added. If not, the program is terminated. If both are new phone numbers, there is a risk that they will be used for fraudulent transactions, so a cautionary decision is added.
[0030]
Next, a specific example of the telephone number automatic cleaning program 13 provided in the self-supporting telephone number cleaning system 1 will be described. FIG. 11 shows a program for obtaining the latest data of the telephone number requested for investigation to the system 1, and the telephone number to be investigated is read from the investigation target database 14 in step S61. Next, steps S62 and S63 are executed, the telephone number transmission computer device 22 is activated, and the latest survey result of the survey target telephone number is received. In the case of the present embodiment, the investigation target telephone number is transmitted from the system 1 to the telephone number transmission computer device 22 via the server computer 3, and the investigation result is transmitted to the system 1 via the server computer 3. What Will be returned.
[0031]
FIG. 12 shows a program for checking the presence / absence of telephone directory listing, and the telephone number to be investigated is read from the investigation target database 14 in step S71. Next, Steps S72 and S73 are executed to search whether or not the telephone number to be investigated is listed in the telephone directory data of the telephone number database 11, and the search result is set in the telephone number history information shown in FIG. .
[0032]
The telephone number automatic cleaning program 13 updates the telephone number of the investigation object stored in the investigation object database 14 to the latest telephone number history information, and the history information stored in the telephone number database 11 is the latest information. In this case, or when the system 1 is separated from the server computer 3, the telephone number to be investigated is updated to the history information stored in the telephone number database 11.
[0033]
FIG. 13 illustrates the telephone number history information to which the telephone subscriber determination program 12 is executed and the determination result of the telephone number to be investigated is added. In Example 1, the program for determining the new telephone number shown in FIG. As a result of the sequential execution of steps S41, S42, S43, and S45, the determination of a new telephone number is added. In Example 2, steps S11 to S13 and S15 of the program for giving the determination of the mover shown in FIG. 6 are executed, it is determined that the transfer is performed, and steps S16, S17 and S18 are further executed to display the area of the destination telephone number. Added to the history information. As a result of executing steps S41 to S44 shown in FIG. 9 later, the determination of the transferred telephone number is added. Further, as a result of executing steps S71 to S73 of the program for checking the presence / absence of the telephone directory shown in FIG. 12 for the same telephone number later, information indicating that there is a publication is added to the telephone directory and at the same time the house shown in FIG. As a result of executing steps S31 to S34 of the program for determining whether or not the map information is published, information with a house map is added. In Example 3, the determination of the long-term resident is added as a result of the execution of steps S1 to S4 and S6 of the program that gives the long-term resident determination shown in FIG. At the same time, the presence / absence of housing map information shown in FIG. 8 is determined.
[0034]
In the example 4 shown in FIG. 13, steps S21 to S24 of the program for giving the determination of the non-payment person shown in FIG. 7 are executed, and the non-payment person determination and the non-payment period are added. At the same time, the presence / absence of the telephone directory shown in FIG. 12 is checked and used as credit information. In Example 5, as in Example 4, although the determination of the non-payment of charges and the non-payment period are added, the presence in the telephone directory is confirmed. Example 6 shows non-payment determination and non-payment period addition by the program for determining non-payment person shown in FIG.
[0035]
As shown in the example of FIG. 13, a plurality of programs shown in FIG. 5 to FIG. 12 can be executed simultaneously according to a user's request, or can be executed alone. A menu for selecting execution of each program is displayed on the screen of the system 1, and the user can select and execute a plurality of programs or a single program.
[0036]
FIG. 14 shows a schematic diagram of a telemarketing system 31 incorporating the self-supporting telephone number cleaning system 1 of the present invention. The surveyed telephone number that has been cleaned or determined autonomously and automatically as described above by the self-supporting telephone number cleaning system 1 can be suitably used for telemarketing. The pre-registered transmission target list of the telemarketing system 31 is cleaned and evaluated by the system 1 as the telephone number to be surveyed, and as a result, the target person according to the purpose of marketing is selected, Called to the subject's phone number. The transmission target list can be extracted and created from the survey target database 14 of the system 1 according to the purpose. For example, a telephone subscriber list that has been transferred or moved to an area of 100 km or more, a telephone subscriber list that has been renamed within a year by a long-term resident, and the like are created and used for marketing. Those who move or move in are more likely to purchase furniture, etc., and the credibility of long-term residents is high.
[0037]
【The invention's effect】
According to the self-supporting telephone number cleaning system of the present invention, the user automatically cleans the telephone number without requiring access to the outside by operating the telephone number database provided in his / her electronic terminal. can do. Therefore, the user can perform cleaning of a necessary telephone number without providing a large-scale and expensive device and without requesting the outside. In addition, by operating the telephone subscriber judgment program, it is possible to automatically execute judgments necessary for the user's corporate activities from the telephone number history information, so that it is easy to organize and is suitable for corporate risk management and marketing that suits the purpose. It can produce great results.
[Brief description of the drawings]
FIG. 1 is a diagram showing an overall configuration of a telephone number cleaning system including a self-supporting telephone number cleaning system according to the present invention.
FIG. 2 is a representative example of a reason display of JT-Q931 defined by the TTC standard, returned from a digital exchange.
FIG. 3 is a diagram showing a layout of telephone number history information and an example of history information.
FIG. 4 is a diagram showing an example of a telephone number area table and addresses.
FIG. 5 is a flowchart showing determination of a long-term resident.
FIG. 6 is a flowchart showing determination of a transferee.
FIG. 7 is a flowchart showing determination of a non-payer.
FIG. 8 is a flowchart showing determination of presence / absence of map publication.
FIG. 9 is a flowchart showing determination of a new telephone number.
FIG. 10 is a flowchart showing credit determination.
FIG. 11 is a flowchart for starting a telephone number usage status investigation.
FIG. 12 is a flowchart showing a determination of phone book posting.
FIG. 13 is a diagram illustrating a determination example.
FIG. 14 is a schematic diagram of a telemarketing system incorporating the self-supporting telephone number cleaning system of the present invention.
[Explanation of symbols]
1 Self-supporting phone number cleaning system
3 Server computer
4 Hard desk
11 Telephone number database
12 Telephone subscriber determination program
13 Automatic phone number cleaning program
14 Target database
31 Telemarketing system

Claims (1)

  In a telemarketing device using a computer that creates a telephone subscriber list for telemarketing, a reason display returned from the digital exchange and a transfer included in the message for every subscriber telephone number existing in the country by a telephone number transmission computer device Storage means is provided for storing a telephone number database for classifying each telephone number and survey date as current and past history for each subscriber telephone number, and a control means provided in the computer refers to the telephone number database. On the other hand, when the judgment program is executed and the reason display of the surveyed telephone number is displayed as normal over the past one to three years from the present and has been continuously used, the surveyed telephone number is set as a long-term resident. Judgment is made as a telephone number, and the reason display of the telephone number to be investigated is correct from the missing number. It is searched whether the transfer destination telephone number moved one month before the survey date changed to the same as the survey target telephone number, and if there is a matching destination telephone number, the survey target telephone number is transferred. A telemarketing device characterized in that a new telephone subscriber list classified as a long-term resident telephone number and a moving-in telephone number is created as a telephone number.

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