JP4872123B2 - Main unit with incoming / outgoing function for old and new telephone numbers - Google Patents

Description

  The present invention provides a telephone number change for each department or extension in a button telephone system or PBX (private branch exchange) that accommodates a plurality of extension telephones that can be assigned a telephone number for each department or extension telephone using dial-in. If the called party dialed by the caller is an old phone number, it is converted to a new phone number and the specified department or extension telephone is called. The present invention relates to a telephone system capable of calling a designated department or extension telephone.

  In the key telephone system and PBX introduced in the company, it is possible to assign a telephone number to each department or extension telephone, and to receive a call to a specific department or extension telephone for each telephone number by the dial-in function. Since the telephone number is frequently changed with the organizational change, automatic transfer to the new telephone number at the time of changing the telephone number is indispensable.

  Therefore, a comparison table of the old phone number before change and the new phone number after change is registered, and when the called number dialed by the caller is the old phone number, it is converted to the new phone number and designated department or extension telephone There is a technology to call. Furthermore, if the same number is used for the old phone number and the new phone number, it cannot be determined whether the called number dialed by the caller is the old phone number or the new phone number, so it is considered that the new phone number has been dialed. If the incoming call is dialed without the conversion from the old phone number to the new phone number, but the called number dialed by the caller is the old phone number, the connection is made to the unintended party (the party who inherited the old phone number). Therefore, after answering the incoming call, by pressing the special number of the incoming call responder, a number change talk key according to the comparison table of the old phone number and the new phone number is sent and then automatically transferred to the new phone number. There is a technique in which a caller who does not know the new telephone number dials a special number + old telephone number and automatically transfers the number change talk key to the new telephone number after sending it (for example, Patent Document 1).

Japanese Patent Laid-Open No. 06-276297

  However, since there are many callers who do not know the new phone number immediately after changing the phone number, the ratio of outgoing calls with the old phone number is high. If the received called number is regarded as the new phone number and the incoming call is received, The transfer operation by pressing the special number becomes frequent, and the work efficiency is reduced due to the extra work.

  In addition, when the caller dials a special number + old telephone number, the caller needs to know this operation in advance, and the direct-in-dial method (known) is used to add a special number. If the dial-in method is used, a special number cannot be added due to the configuration of the telephone number, which is not realistic.

In order to solve the above-mentioned problem, the first invention is a key telephone system or a main device of PBX which can accommodate a plurality of extensions and assign a telephone number to each extension using dial-in. When the correspondence of the number is changed, the correspondence between the extension and the new phone number after the change and the old phone number before the change is stored, and the correspondence between the extension and the phone number is changed. The incoming call history storage means for storing the caller number received after the call is associated with the new phone number, and for dial-in calls, the incoming number of the incoming call exists in both the old phone number and the new phone number. In addition, when the incoming call origination number is stored in the changed incoming call history storage means, the incoming call incoming number is received without being converted, and the incoming call incoming number is received at the extension corresponding to the incoming call number. number If there is a new phone number and the incoming call origination number is not stored in the incoming call history storage means, the caller of the incoming call will receive a number change guide, which is a voice message indicating that the phone number has been changed. Talkie control means for sending to the telephone, and incoming call processing means for converting the incoming call number into a new telephone number by referring to the old and new telephone number storage means after sending the number change guide and for receiving the incoming call to the corresponding extension. It is characterized by that.

In addition, in the second invention, in the first invention, after receiving the incoming call number on the extension corresponding to the called number without converting the called number, the key operation information is received from the extension. In this case, after the talkie control means sends the number change guide to the caller, the incoming call processing means refers to the new and old telephone number storage means to convert the incoming call incoming number into a new telephone number. And automatically transferring to the corresponding extension.

Further, a third invention is the key of the first invention, wherein a key predetermined from the incoming caller side is transmitted during or after the number change guide is being sent to the incoming caller. When the operation information is received, the incoming call processing means makes an incoming call to an extension corresponding to the called number without converting the called number .

According to a fourth aspect of the present invention, in any one of the first to third aspects, the incoming call processing means sends the number change guide to the caller of the incoming call and refers to the old and new telephone number storage means. Then, the process of converting the incoming call incoming number into a new telephone number and receiving the incoming call on the corresponding extension is executed only for a valid period registered in advance.

Immediately after the number change, few callers are aware of the number change and the new phone number after the change. When calling for the first time after changing the number, the old phone number is often dialed. After knowing the number change (for example, when dialing for the first time, dialing with the old telephone number, when the new telephone number is guided and transferred), the new telephone number is often dialed. In the first invention, by using the incoming call history for each new telephone number, the first caller after the number change or the second and subsequent callers are identified by the presence / absence of the registered caller number, and the first call is made For the subscriber, the incoming number is converted into a new telephone number when the number change guide is sent out, and the incoming call is received. As a result, it is possible to connect to the department or extension telephone corresponding to the old telephone number. For the second and subsequent callers, it is assumed that the call is received by the new telephone number, and the incoming call is received with the received incoming call number, so that the caller can almost certainly reach the department or extension telephone that the caller wants without any special operation. Can be connected.
In addition, when using dial-in, there is a known example of an operation method in which a dial-in number is assigned for each department without calling one specific extension telephone and a plurality of extension telephones of the department is called. Although the operation method in which dial-in numbers are assigned in units of departments has been described, even in the case of an operation method in which a specific extension telephone is called, there is an operation method in units of departments except that the number of receiving side telephones is limited to one. It is the same.

  In addition, there is a background that the caller made a call with the department A (eg, old telephone number = 1111, new telephone number = 1112) after the number change, but another department B (eg: old telephone number = 1112, new telephone number = In order to make a call to the department B when the new telephone number of 1113) is not known, the old telephone number (1112) can only be dialed. However, since the telephone number 1112 is used as the new telephone number of the department A and the calling party's calling number is stored in the incoming call history of the department A, according to the first invention, the new telephone number of the department B is used. Instead of receiving a call after conversion, the call arrives directly at department A. Therefore, the call is transferred to the department B (new phone number 1113) after the special number operation on the call answering side shown in the second invention (the function button for transfer may be pressed), and the call is answered even if an erroneous call is received. It is possible to connect to a department or an extension telephone desired by the caller only by simple operation on the side.

  Further, even when the caller knows the new telephone number (1112) of the department A when calling the department A for the first time after changing the number and dials the new telephone number (1112), the first invention Since the caller's calling number for the new telephone number (1112) is not stored in the incoming call history of the department A, the received called number is converted to the new telephone number (for example, 1112 → 1113). Therefore, it is possible to prevent an incoming call by mistake by prohibiting the transfer by the caller's special number operation shown in the third invention.

Also, if the new phone number can be known after a certain period of time since the number change, the number of callers who dial with the new phone number from the beginning will increase, but in order to determine the transfer operation based on whether there is an incoming call history, conversely unnecessary transfer operation and The frequency of caller forwarding prohibited special number operations increases. Therefore, it is effective to limit the number change guidance and automatic transfer function shown in the fourth invention to a certain period.

  Hereinafter, embodiments of the present invention will be described. In the following embodiments, a button telephone main device and a wired extension telephone connected to the button telephone main device will be described as examples of the button telephone device. However, the present invention is not limited to this. For example, a wireless extension telephone can be used instead of a wired extension telephone, and it may be implemented by a private branch exchange instead of a button telephone apparatus. Further, the outside line may be any line that can use the calling number and called number, and any analog line, ISDN line, or IP line can be used.

  FIG. 1 is a schematic configuration diagram of a key telephone main device 10 and an extension telephone 19 constituting a key telephone device according to the present invention. FIG. 2 is a functional block diagram of the central control unit 11 and the storage unit 12 of the key telephone main device 10 according to the present invention. FIG. 3 is a flowchart regarding the incoming call processing in the central control unit 11 of the key telephone main apparatus 10 according to the present invention.

  First, an outline of the configuration of the key telephone main device 10 and the extension telephone 19 constituting the key telephone device will be described with reference to FIG. The key telephone apparatus includes a key telephone main apparatus 10 that accommodates one or more external lines and a plurality of extensions, and a plurality of extension telephones 19-1 to 19-n connected to the key telephone main apparatus 10.

  The key telephone main device 10 includes at least a central control unit 11, a storage unit 12, one or more external line circuits 13-1 to 13 -m, a calling number / called number receiving unit 14, and a PB signal receiving unit 15. The talkie sending unit 16, the speech path switch 17, and a plurality of extension circuits 18-1 to 18-n are configured.

  The central control unit 11 performs analysis and determination on input information (including information from the extension telephone 19) from each circuit of the key telephone main device 10, inputs / outputs information to / from the storage unit 11, and controls each circuit.

  The storage unit 12 stores a telephone number conversion table of an old telephone number and a new telephone number, an incoming call history, and a special number table, in addition to the function as a normal storage unit.

  The external line circuits 13-1 to 13-m are interface circuits connected to the external line. The external line disclosed in the present invention includes a general public line, a line of an IP telephone company, a dedicated line, a private line, a wireless line such as a mobile phone (using a wireless / wired exchange adapter), and the like. In the present embodiment, a case of an analog telephone network of a general public line will be described.

  The calling number / destination number receiving unit 14 is a modem circuit that receives a calling number or a called number when an outside line is received, and is connected to the outside line circuit 13 via the communication path switch 17. In the case of an ISDN line of a general public line, the calling number / destination number information is transmitted through the control channel, so that the calling number / destination number receiving unit 14 is unnecessary. In the present embodiment, the calling number / destination number receiving unit 14 is configured to be independent of the external line circuit 13 and shared by a plurality of lines, but may be configured to correspond to the external line circuit 13 on a one-to-one basis.

  The PB signal receiving unit 15 is a circuit for receiving special number information by a caller's push signal after receiving an external line, and is connected to the external line circuit 13 via the communication path switch 17. In the present embodiment, the PB signal receiving unit 15 is configured to be independent of the external line circuit 13 and shared by a plurality of lines, but may be configured to correspond to the external line circuit 13 on a one-to-one basis.

  The talkie sending unit 16 is a circuit for guiding the caller to change the telephone number by voice, and is connected to the outside line circuit 13 via the communication path switch 17. The voice guidance may use voice synthesis or may be recorded by the user, and the means is not limited. In the present embodiment, the talkie sending unit 16 is configured to be independent of the external line circuit 13 and shared by a plurality of lines, but may be configured to correspond to the external line circuit 13 on a one-to-one basis.

  The communication path switch 17 is used for the exchange processing in the key telephone main unit 10 (connection between the external lines 13-1 to 13-m and the extension circuits 18-1 to 18-n, the calling number / destination number receiving unit 14 and the external line 13). -1 to 13-m, PB signal receiver 15 and external lines 13-1 to 13-m, Talkie transmitter 16 and external lines 13-1 to 13-m, and the like.

  The extension circuits 18-1 to 18-n are interface circuits for communicating voice and control information with the extension telephones 19-1 to 19-n.

  The extension telephones 19-1 to 19-n are telephones connected to the extension circuits 18-1 to 18-n, and one to a plurality of telephones are connected to each department (department A to department X).

  Next, functional configurations of the central control unit 11 and the storage unit 12 of the key telephone main device 10 according to the present invention will be described with reference to FIG. The central control unit 11 includes at least an external circuit control means F30, a called number receiving means F31, a calling number receiving means F32, a special number receiving means F33, a talkie control means F34, a speech path control means F35, and data transmission / reception. Means F36, called number analysis means F37, calling number analysis means F38, special number analysis means F39, transition control means F40, received data analysis means F41, and incoming call processing means F42. The storage means F43, the old and new telephone number storage means F44, and the changed incoming call history storage means F45 are configured.

  The outside line circuit control means F30 has a function of controlling the outside line transmission and the outside line incoming call to the outside line circuit 13. When the outside line arrival is detected, the outside line circuit control means F30 notifies the transition control means F40 that the outside line arrival has been detected, and the speech path control means. Under the control of F35, the external line circuit 13 is connected to the calling number / destination number receiving unit 14 via the communication path switch 17.

  The called number receiving means F31 has a function of controlling the calling number / called number receiving unit 14 and notifying the called number analyzing means F37 of the called number information received by the calling number / called number receiving unit 14. The control method for receiving the called number information is well known and will not be described.

  The calling number receiving unit F32 has a function of controlling the calling number / destination number receiving unit 14 and notifying the calling number analysis unit F38 of the calling number information received by the calling number / destination number receiving unit 14. Since the control method for receiving the calling number information is well known, the description is omitted.

  The special number receiving unit F33 has a function of controlling the PB signal receiving unit 15 and notifying the special number analyzing unit F39 of PB signal (also referred to as a push signal or DTMF signal) information sent from the caller. A control method for receiving the PB signal information is well known and will be omitted.

  The talkie control unit F34 has a function of controlling the talkie sending unit 16 and instructing the talkie sending unit 16 to send a talkie corresponding to the designation from the transition control unit F40 when it is necessary to send a talkie to the caller. ing.

  The speech path control means F35 has a function of issuing an instruction to connect the speech path of each circuit to the speech path switch 17 in accordance with the speech path connection instruction from the transition control means F40. For example, when an incoming call from an outside line is detected, a call path between the outside line circuit 13 and the calling number / destination number receiving unit 14 is connected. When a talkie transmission is necessary, a call path between the outside line circuit 13 and the talky sending unit 16 is connected. If it is necessary to receive a PB signal from the caller, an instruction to connect a speech path between the external circuit 13 and the PB signal receiver 15 is sent to the speech path switch 17.

  The data transmission / reception means F36 is used when the extension telephone is a key telephone (multi-function telephone). In response to an instruction from the incoming call processing means F42, the button telephone displays incoming call display information (whether or not the incoming call is ringing, the type of the incoming ring, the incoming call display button) , Etc.) is sent to the key telephone via the extension circuit 18. When the extension telephone is a single telephone, an incoming signal is sent to the single telephone that rings the incoming call in accordance with an instruction from the incoming call processing means F42. The data transmission / reception means F36 also has a function of notifying the received data analysis means F41 of the operation contents of the key telephone, for example, data stored in the special number storage means F43 and the old and new telephone number storage means F44, and the special number operation during a call. is doing. Note that a method for receiving a special number operation during a call when the extension telephone is a single telephone is well known, and is therefore omitted.

  The called number analyzing means F37, when receiving the called number information from the called number receiving means F31, performs collation with the telephone number conversion table stored in the old and new telephone number storage means F44. If it exists only in the new telephone number, it instructs the incoming call processing means F42 to perform normal incoming call processing with the received called number. If it exists only in the old telephone number, it converts the telephone number of the old and new telephone number storage means F44. According to the table, it has a function of instructing the incoming call processing means F42 to perform incoming call processing for converting the old telephone number (corresponding to the received called number) to the new telephone number. If both the old telephone number and the new telephone number are present, the calling number is also analyzed, so that no instruction is given to the incoming call processing means F42, and the calling number analyzing means F38 has a function of taking over the processing.

  The calling number analysis means F38 receives the calling number analysis instruction from the called number analysis means F37 when the received called number exists in both the old telephone number and the new telephone number of the new and old telephone number storage means F44. It has a function of checking whether the same calling number as the calling number received by the calling number receiving means F32 exists in the calling number list of the incoming call history storage means F45 after the change of the new telephone number corresponding to the called number. If the same calling number exists, the normal incoming call processing with the received called number is instructed to the incoming call processing means F42. If the same calling number does not exist, it is stored in the telephone number conversion table of the old and new telephone number storage means F44. The incoming call processing means F42 is instructed to perform incoming call processing for converting the old telephone number (corresponding to the received called number) to the new telephone number.

  The special number analysis unit F39 has a function of collating with the “transfer prohibited special number” stored in the special number table of the special number storage unit F43 when the special number information (PB signal information operated by the caller) is received from the special number reception unit F33. Have. Note that this verification processing is performed before the incoming call activation of the telephone is performed in the incoming call processing in which the incoming call processing means F42 converts the old telephone number (corresponding to the received called number) to the new telephone number. If it matches the "Forbidden transfer special number", the incoming call processing means F42 is instructed to change to the normal incoming call processing with the received called number, and if it does not match the "Forbidden transfer special number" or the special number is not received In this case, the incoming call processing means F42 is instructed to continue the incoming call processing for converting the old telephone number (corresponding to the received called number) to the new telephone number according to the telephone number conversion table of the new and old telephone number storage means F44. .

  When the transfer control means F40 is notified of the detection of the incoming call from the external line circuit control means F30, the transfer control means F40 instructs the call path control means F35 to connect the call path between the external line circuit 13 and the calling number / destination number receiving unit 14. It has a function. Further, in the case of performing an incoming call process for converting the old telephone number (corresponding to the received called number) to the new telephone number, the external line circuit 13 and the talky sending section are in accordance with a talky sending instruction from the incoming call processing means F42. A function for instructing the communication path control means F35 to connect the communication paths between the 16 telephones, and for instructing the talkie control means F34 to send a number change guide talkie from the old telephone number (corresponding to the received called number) to the new telephone number. have. In addition, upon receiving notification of the telephone call end from the received data analysis means F41, it has a function of notifying the incoming call processing means F42 that the incoming call has ended. Further, when a transfer instruction from the old telephone number (corresponding to the received called number) to the new telephone number is received from the received data analysis means F41, the old telephone number (in accordance with the telephone number conversion table of the old and new telephone number storage means F44) It has a function of instructing the incoming call processing means F42 to perform incoming call processing for converting from the received called number) to a new telephone number.

  The reception data analysis means F41 has a function of analyzing the operation information of the extension telephone 19 notified from the data transmission / reception means F36. When the telephone receives the special number information from the data transmission / reception means F36 during a call, it collates with the “number change destination forwarding special number” stored in the special number table of the special number storage means F43. If it coincides with the “number change destination forwarding special number”, the transfer control means transfers the old telephone number (corresponding to the received called number) to the new telephone number according to the telephone number conversion table of the old and new telephone number storage means F44. Instruct F40. Further, it has a function of notifying the transition control means F40 of the end of the telephone when it detects that the telephone has ended. If the information notified from the data transmitting / receiving unit F36 is registration data stored in the special number storage unit F43 or the old and new telephone number storage unit F44, the data stored in the special number storage unit F43 or the old and new telephone number storage unit F44 is registered. It also has a function.

  The incoming call processing means F42 has a function of executing the incoming call processing in accordance with the instruction from the called number analysis means F37 or the calling number analysis means F38, and can change the content of the incoming call processing in accordance with the instruction from the special number analysis means F39. is there. Also, when the extension telephone presses the “number change destination forwarding special number” to end the call, it has a function of executing the incoming call processing in accordance with an instruction from the transfer control means F40. Further, when the extension telephone is finished, it has a function of registering the calling number received by the calling number receiving means F32 in the incoming call history storage means F45 after the change.

  The special number storage means F43 includes a “transfer prohibited special number” for collating the special number information (PB signal information operated by the caller) notified by the special number analysis means F39 from the special number reception means F33, and the received data analysis means F41. It has a function of storing a “number change destination transfer special number” for collating the special number information operated by the extension telephone 19 notified from the transmission / reception means F36. Each special number in the special number storage means F43 is registered by the received data analysis means F41 when the extension telephone 19 performs a registration operation. In addition to the registration operation of the extension telephone 19, setting by a personal computer, remote telephone line, etc. Setting via the route is also possible, and the registration means is not particularly limited.

  The old and new telephone number storage means F44 has a function of storing an old telephone number for each department and a telephone number conversion table of new telephone numbers that are used when the called number received by the called number receiving means F31 is collated. Yes. Further, when the received called number exists in the old telephone number, a number conversion valid period for determining whether to perform the subsequent analysis processing or to perform normal incoming call processing for the received called number is also provided. I remember it. The new and old telephone number storage means F44 is also referred to when the incoming call processing means F42 converts the old telephone number (corresponding to the received called number) to the new telephone number and performs incoming call processing. Note that the telephone number conversion table of the old and new telephone number storage means F44 is registered in the old and new telephone number storage means F44 by the received data analysis means F41 when the extension telephone 19 performs a registration operation, but other than the registration operation of the extension telephone 19 In addition, setting by a personal computer or setting via a telephone line or the like remotely is possible, and the registration means is not particularly limited.

  The post-change incoming call history storage means F45 has a function of storing the calling party's calling number that has made an incoming call for each new telephone number of each department. The caller's calling number is registered by the incoming call processing means F42 as the incoming call history of the department that made the call at the end of the incoming call. When the received called number is present in both the old telephone number and the new telephone number of the new and old telephone number storage means F44, the post-change incoming call history storage means F45 receives the outgoing call received by the calling number receiving means F32 by the calling number analysis means F38. This is used when checking whether there is a calling number that is the same as the caller's calling number. The calling number stored in the incoming call history storage means F45 after the change is cleared when the number conversion effective period starts, and the calling number is registered and stored within the number conversion effective period. However, if the same calling number is stored, no new registration is performed.

  Next, the flow of incoming call processing on the key telephone main device 10 side in the above embodiment will be described with reference to FIG. In addition, in FIG. 3, the order of each step shows an example, and may be arbitrarily changed within a range in which the operation / effect is not changed.

  First, when there is an incoming call from outside line, a calling number / destination number receiving process is performed (S51). Since the control method for receiving the calling number / called number information is known, the details are omitted.

  When the calling number / destination number receiving process (S51) is completed, the called number analysis means F37 collates the received number received at step 51 with the telephone number conversion table of the old and new telephone number storage means F44 stored in advance (S52). ), It is checked whether the called number exists in the old telephone number of the telephone number conversion table (S53).

  If it is determined in step S53 that the called number does not exist in the old telephone number (No), the incoming call processing means F42 performs incoming call processing (known) (S54) corresponding to the received called number, and if the telephone answers, The call processing (known) (S55) is completed.

  If the called number is present in the old telephone number in step S53 (Yes), it is confirmed whether it is within the number conversion valid period from the telephone number conversion table of the new and old telephone number storage means F44 collated in step S52 (S56). .

  If it is not within the number conversion valid period in step S56 (No), the incoming call processing means F42 performs an incoming call process (known) (S54) corresponding to the received called number, and when the telephone answers, a response / call process (known) ) (S55).

  In step S56, if it is within the number conversion valid period (Yes), it is confirmed whether the called number exists in the new telephone number of the telephone number conversion table checked in step S52 (S57).

  In step S57, if the called number does not exist in the new telephone number (No), a number change talkie transmission process (S58) is performed. For example, “the general affairs department telephone number XXXXXX1111 has been changed to XXXXXX1112. "Please wait." Will be sent to the caller.

  When the number change talkie sending process in step S58 is completed, the incoming call processing means F42 converts the called number into a new telephone number according to the telephone number conversion table of the old and new telephone number storage means F44, and performs incoming call processing (S59). If the response, the response / call processing (known) (S60) is completed.

  If the called number is present in the new telephone number in step S57 (Yes), the calling number analysis means F38 compares the calling number received in step S51 with the calling number list in the changed incoming call history storage means F45. (S61) It is confirmed whether the calling number exists in the calling number list (S62).

  In step S62, if the calling number does not exist in the calling number list (No), a number change talkie transmission process (S63) is performed. If you do not need to transfer, please dial "1" with a push signal. "To the caller.

  When a special number from the caller is received while waiting for a dial operation (special number reception) from the caller during a talk time transmission in step S63 and for a fixed time after the talkie transmission (it may be variable depending on the setting), the special code analysis means F39 The received special number is collated with the special number table stored in the special number storage means F43 in advance, and it is confirmed whether or not the special number matches the “transfer prohibited special number” in the special number table, and the “transfer prohibited special number” is received from the caller. The presence or absence is determined (S64).

  If the "transfer prohibited special number" is not received in step S64 (No), the incoming call processing means F42 converts the called number into a new telephone number according to the telephone number conversion table of the old and new telephone number storage means F44 and receives the incoming call. Processing (S65) is performed, and when the telephone answers, the response / call processing (known) is taken over (S66).

  After step S66, when the telephone that has responded performs the call termination processing, the changed incoming call history storage means is used as the incoming call history for the telephone number (new telephone number converted from the called number) for which the incoming call processing was performed in step S65. The calling number is registered in F45 (S67), and the process ends.

  When “transfer prohibited special number” is received in step S64 (Yes), the incoming call processing means F42 performs incoming call processing (known) (S68) corresponding to the received called number, and when the telephone answers, the response / call processing (Known) Takes over to (S69).

  After step S69, it is normally a call termination process, but as a countermeasure when a caller's operation mistake (the caller mistakenly presses the “Forbidden transfer special number”) causes the incoming call process to remain in the destination number, By pressing the “number change destination forwarding special number” before the end of the call on the telephone that has responded to the incoming call, the called number can be handled as the old telephone number and can be transferred to the new telephone number. When the special number is pressed before the incoming call answering party ends, the received data analysis means F41 collates the special number pressed with the special number table stored in the special number storage means F43 in advance, and the special number is “number” in the special number table. Check if it matches the "Change destination forwarding special number". (S70).

  If the "number change destination forwarding special number" is not received in step S70 (No), the incoming call after change is used as the incoming call history for the telephone number (corresponding called number) for which the incoming call processing was performed in step S68. The calling number is registered in the history storage means F45 (S71), and the process ends.

  In step S70, when the “number change destination forwarding special number” is received (Yes), the number change talkie sending process (S72) is performed. "Please wait." Will be sent to the caller.

  When the number change talkie sending process in step S72 is completed, the incoming call processing means F42 converts the received called number into a new telephone number according to the telephone number conversion table of the old and new telephone number storage means F44, and performs incoming call processing (S73). When the telephone answers, it takes over to answer / call processing (known) (S74).

  After step S74, when the telephone that has responded performs call termination processing, the calling number is changed as the incoming call history to the telephone number (new telephone number converted from the called number) for which the incoming call processing was performed in step S73. The calling number is registered in the incoming call history storage means F45 (S75), and the process ends.

  If the calling number exists in the calling number list in step S62 (Yes), the incoming call processing means F42 performs incoming call processing (known) (S68) corresponding to the received called number, and if the telephone answers, The call processing (known) (S69) is taken over. In addition, since the process after step S69 has already been demonstrated, description is abbreviate | omitted.

1 is a schematic diagram of a configuration of a key telephone main device 10 and an extension telephone 19 according to the present invention. FIG. 3 is a functional block diagram of a central control unit 11 and a storage unit 12 according to the present invention. The flowchart regarding the incoming call process in the central control part 11 of the key telephone main apparatus 10 which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Button telephone main apparatus 11 Central control part 12 Memory | storage part 13 External line circuit 14 Calling number / called number receiving part 15 PB signal receiving part 16 Talkie sending part 17 Speech path switch 18 Extension circuit 19 Extension telephone F30 External line control means F31 Called number Reception means F32 Calling number reception means F33 Special number reception means F34 Talkie control means F35 Call path control means F36 Data transmission / reception means F37 Called number analysis means F38 Calling number analysis means F39 Special number analysis means F40 Transition control means F41 Received data analysis means F42 Incoming processing Means F43 Special number storage means F44 Old and new telephone number storage means F45 Changed incoming call history storage means

Claims (4)

In a key telephone system or PBX main unit that can accommodate a plurality of extensions and assign a telephone number to each extension using dial-in,
A new and old phone number storage means for storing a correspondence between the extension, the new phone number after the change and the old phone number before the change when the correspondence between the extension and the phone number is changed;
An after-change incoming call history storage means for storing a calling number received after the correspondence between the extension and the telephone number is changed, in association with a new telephone number ;
For dial-in calls
If the incoming call destination number exists in both the old telephone number and the new telephone number and the incoming call origination number is stored in the changed incoming call history storage means, the incoming call incoming number is not converted and the incoming call incoming number is not converted. Call the extension corresponding to the called number ,
A voice message indicating that the telephone number has been changed when the incoming call destination number exists in both the old telephone number and the new telephone number and the incoming call origination number is not stored in the incoming call history storage means after the change. Talkie control means for sending a certain number change guide to the caller of the incoming call,
Corresponding to new and old telephone numbers, characterized by comprising incoming call processing means for converting said incoming call number into a new telephone number by referring to said new and old telephone number storage means after sending said number change guide and for receiving the incoming call to the corresponding extension Main device with incoming call function. According to claim 1, after coming into the extension corresponding to the deposition numbers without converting the destination number of the incoming call, when receiving a predetermined key operation information from the extension, the Torquay control means the After sending the number change guide to the caller, the incoming call processing means refers to the new and old telephone number storage means , converts the incoming call incoming number into a new telephone number and automatically transfers it to the corresponding extension. A main device having an incoming call function corresponding to old and new telephone numbers. Oite to claim 1, the number change guidance within a certain time after delivery during or transmitted to the caller of the incoming call, when receiving a predetermined key operation information from the caller side of the incoming The main unit having an incoming / outgoing function corresponding to old and new telephone numbers, wherein the incoming call processing means makes an incoming call to an extension corresponding to the called number without converting the called number. 4. The incoming call processing means according to claim 1, wherein the incoming call processing means transmits the number change guide to the caller of the incoming call, and refers to the new and old telephone number storage means to determine the incoming call incoming number as a new telephone. A main apparatus having an incoming / outgoing function corresponding to old and new telephone numbers, wherein a process of converting to a number and receiving a call to a corresponding extension is executed only for a valid period registered in advance.

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