JP5195968B2 - Button telephone system with related telephone number display function - Google Patents

Description

  The present invention relates to a button telephone system or a related telephone number display function of a PBX (private branch exchange) that accommodates a plurality of extension telephones having a telephone directory function.

  Recent telephone systems such as home phones, mobile phones, button telephone systems, and PBXs have a telephone book function as a standard function, and can make a call by searching the telephone book. In addition, there is a telephone system that can register a plurality of telephone numbers such as a fixed telephone and a mobile phone for the same party, and after searching for the name of the other party, it is possible to select from a plurality of telephone numbers and make a call to the other party. ing.

  However, when a plurality of telephone numbers of the same party are set, it may be difficult to determine which telephone number is used to make a reliable connection.

  In view of this, a technique has been disclosed in which the last used telephone number or a telephone number with a high frequency of use is treated as a priority number, and a telephone number with a high priority is preferentially displayed when searching the phone book (for example, Patent Document 1).

JP 2001-177626 A

  According to the technique disclosed in Patent Document 1, a telephone number that is frequently used is treated as a priority number, and therefore a telephone number of a mobile phone that is likely to be reliably connected to the other party is frequently used depending on the caller. The possibility becomes high and the mobile phone number is selected as the priority number. Call charges differ depending on the combination of the caller's line and the callee's line. For example, calling from a fixed phone to a mobile phone generally has a higher call charge compared to calling from a fixed phone to a fixed phone. There is a problem of becoming.

  An object of the present invention is to solve the above-described problems of the prior art.

  In order to solve the above-described problems, the present invention provides a key telephone system comprising a main device that accommodates a plurality of types of external lines and a plurality of extensions, and a plurality of extension telephones that are connected to the extensions. An associated telephone number storage means having a telephone directory function and storing a plurality of telephone numbers in association with each other; an associated telephone number retrieval means for retrieving a telephone number associated with a telephone number designated from the extension telephone; A plurality of associated telephone numbers are prioritized according to a predetermined schedule registered in advance, and a priority destination line type storage means for storing a priority of a combination of the external line type and the telephone number; There is priority call destination line type determination means for determining whether or not the other party telephone number designated by the extension telephone is a call destination line to be prioritized. When the other party name or the other party telephone number is specified by the outgoing call history, the incoming call history, the dial operation, or the like, the main device determines whether or not the telephone number is the type of the destination line to be prioritized, and the other party name or the other party Search the related telephone number of the telephone number, determine the combination of the external line type and the telephone number according to the priority order within the range of the external line type that can be used the determination result and / or the search result, to the extension telephone The extension telephone is configured to display the determination result and / or the search result notified from the main unit on the display unit of its own terminal, and determine the other party telephone number by a predetermined operation or timeout.

  Further, according to the present invention, when a call is made with the determined telephone number, if the other party does not answer or cannot be connected due to out of service area or the like, another telephone number associated with the telephone in accordance with the priority order according to a predetermined operation or timeout of the extension telephone. Is notified to the extension telephone.

  According to the present invention, in the case of a button telephone system that accommodates a plurality of types of external lines, the call method with the lowest call charge is given priority in consideration of the combination of types of external lines that can be transmitted and the telephone number of the other party. It becomes possible to select.

  In addition, according to the present invention, even if a party has registered a plurality of telephone numbers, it is possible to limit the destination telephone number to a cellular phone telephone number, etc. at night or on holidays, which is a wasteful call. Can be reduced.

  Furthermore, according to the present invention, when a call is made to the telephone number with the lowest call charge, if the other party cannot answer or cannot be connected due to out of service area, etc., it is possible to re-call the call number next with the call charge being low. It becomes.

  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 can be any of an analog line, an ISDN line, an IP line, a mobile phone line using a mobile phone adapter or the like.

  FIG. 1 is a schematic configuration diagram of a key telephone main device 10 and a key telephone 20 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 conceptual diagram showing the configuration of the related telephone number storage means according to the present invention. FIG. 4 is a conceptual diagram showing the configuration of the priority destination line type storage means according to the present invention. FIG. 5 and FIG. 6 are flowcharts relating to outgoing call processing in the central control unit 11 of the key telephone main device 10 according to the present invention. FIG. 7 is a flowchart relating to the re-call process after the call process in the central control unit 11 of the key telephone main device according to the present invention.

  First, an outline of the configuration of the key telephone main device 10 and the key telephone 20 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 key telephones 20-1 to 20-n connected to the internal line of 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 speech path switch 14, a clock circuit 15, and a plurality of extension circuits 16. -1 to 16-n.

  The central control unit 11 analyzes and determines input information (including information from the key telephone 20) from each circuit of the key telephone main device 10, inputs / outputs information to / from the storage unit 11, and controls each circuit.

  In addition to the function as a normal storage unit, the storage unit 12 stores a plurality of telephone numbers for the same party as telephone directory data, priority rankings when searching for telephone numbers, and the like.

  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 following description, although it may be described as “external line circuit 13”, any external line circuit determined by processing in a plurality of external line circuits is shown instead of a specific external line circuit.

  The communication path switch 14 performs exchange processing (connection of the external lines 13-1 to 13-m and the extension circuits 16-1 to 16-n, etc.) in the key telephone main device 10.

  The clock circuit 15 is a circuit such as a real-time clock that is necessary for displaying a calendar and time on the LCD display of the telephone, and managing outgoing and incoming calls and incoming and outgoing dates. The clock function can be realized by the central control unit instead of the dedicated circuit.

  The extension circuits 16-1 to 16-n are interface circuits for communicating voice and control information with the key telephones 20-1 to 20-n.

  The key telephone 20 includes at least a control unit 21, a data transmission / reception circuit 22, a voice processing unit 23, a handset 24, a speaker 25, a dial button 26, an outside line button 27, a function button 28, And an LCD display 29.

  The control unit 21 analyzes and determines input information from each circuit in the key telephone 20 and controls each circuit.

  The data transmission / reception circuit 22 is an interface circuit for communicating voice data and control data with the key telephone main apparatus 10 via an extension line.

  The voice processing unit 23 controls voice digital / analog conversion, analog / digital conversion, call path switching processing with the handset 24 and the speaker 25 in the key telephone 20, and volume.

  The handset 24 is a handset for performing transmission and reception during a call.

  The speaker 25 is used for ringing an outside line ring tone and for amplifying the other party's voice through the speaker.

  The dial button 26 is a means for inputting a telephone number and an abbreviated dial when making a call, and is also used as an input means for registering telephone book data and various settings generally used in a button telephone apparatus.

  The outside line button 27 is a plurality of buttons for selecting an outside line to be used from a plurality of outside lines, and an LED indicator for displaying the state of the outside line (incoming, in use, on hold, etc.) corresponding to the button. It has.

  A plurality of function buttons 28 are provided, and are used when searching the phone book, outgoing call history, incoming call history, etc. in addition to the “hold” button and “setting” button that are generally used in the key telephone apparatus. There are dedicated buttons, etc.

  In addition to displaying the current date and time, the LCD display 29 displays the caller's phone number, name, etc. when receiving a call, displays the dialed number, call duration, etc. when making a call. Search results and the like are displayed, and input data and setting results are also displayed when various settings are input.

  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 unit F40, a communication path control unit F41, a call control unit F42, a related telephone number search unit F43, a priority destination line type determination unit F44, and a display control unit F45. Data transmission / reception means F46, received data analysis means F47, system data registration means F48, re-transmission control means F49, and clock control means F50, and the storage unit 12 includes related telephone number storage means F51. , A priority call destination line type storage unit F52 and an external line type storage unit F53.

  The outside line circuit control means F40 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 incoming call is detected, the outside line circuit control means F40 notifies the call control means F42 that the outside line incoming call has been detected. At that time, outside line transmission control is performed in accordance with an instruction from the call control means F42.

  The communication path control means F41 has a function of issuing an instruction to connect a communication path of each circuit to the communication path switch 14 in accordance with a communication path connection instruction from the call control means F42. For example, when the telephone responds after the incoming call is received, an instruction from the call control means F42 is sent to the communication path switch 14 to connect a communication path between the external circuit 13 and the extension circuit 16 corresponding to the telephone that has responded.

  The call control means F42 has a function of receiving information from each functional block and instructing each functional block as necessary. For example, when making a call after searching the phone book, the call control means F42 receives the operation information of the key telephone 20 that designates the call destination from the received data analysis means F47 and relates the call destination to the related telephone number search means F43. When the search of a plurality of telephone numbers is instructed, and the priority destination line type determination means F44 determines a telephone number having priority from among the plurality of telephone numbers searched by the related telephone number search means F43, the outgoing call to the telephone number is made outside line. Instructs the circuit control means F40.

  The related telephone number search means F43 has a function of searching for a telephone number related to the destination from the related telephone number storage means F51 when the call control means F42 receives the operation information of the key telephone 20 designating the destination. The retrieved telephone number is handed over to the priority destination line type determination means F44. If a telephone number designated for priority is set in the related telephone number storage means F51 according to a predetermined schedule (day of the week, time zone, etc.), the current day of the week is set from the clock control means F50 via the call control means F42. If a priority number that matches the acquired day of the week and time is set, the priority destination line type determination means F44 is handed over only the telephone number designated for priority.

  The priority call destination line type determination means F44 has a function of referring to the priority call destination line type storage means F52 and determining a telephone number to be preferentially transmitted among a plurality of telephone numbers acquired from the related telephone number search means F43. Have.

  The display control means F45 obtains data such as date and time to be displayed on the LCD display 29 of the telephone from the clock control means F50, and displays the lamp information displayed on the external line button 27 of the telephone or the LCD display 29. It has a function of acquiring display data such as a telephone number from the call control means F42, converting the data into a format for display on a telephone, and delivering it to the data transmitting / receiving means F46.

  The data transmission / reception means F46 has a function of transmitting / receiving control data and voice data to / from the key telephone 20 via the extension circuit 16. Lamp information, telephone number display information, and the like notified from the display control means F45 are transmitted to the extension circuit 16, and data received from the extension circuit 16 is delivered to the reception data analysis means F47.

  The reception data analysis means F47 has a function of analyzing the operation information of the key telephone 20 notified from the data transmission / reception means F46. Setting data information such as related telephone number and priority destination line type to be registered as telephone directory data is sent to the system data registration means F48, retransmission operation information is sent to the retransmission control means F49, and other telephone operation information is call control. Delivered to means F42.

  The system data registration means F48 has a function of registering various system data in the storage unit 12, and when the telephone performs a telephone book data registration operation, the telephone book data is registered in the related telephone number storage means F51. When the telephone performs the registration operation of the priority destination line type, the priority destination line type is registered in the priority destination line type storage unit F52. When the registration operation of the external line type data is performed, the external line type data for each external line number is registered in the external line type storage unit F53. Various system data can be registered using a personal computer or the like in addition to the operation by the telephone.

  The re-transmission control means F49 has a function of performing re-transmission control. When the re-transmission operation information of the key telephone 20 is received from the reception data analysis means F47, the call control means F42 is notified of the next priority telephone number. Performs a re-call instruction. The call control means F42 instructs the priority call destination line type determination means F44 to select the next priority telephone number, and sends the call for the telephone number acquired from the priority call destination line type determination means F44 to the external line circuit control means F40. Instruct. Note that it is possible to determine whether or not the other party has responded within a predetermined time, and automatically perform re-transmission control without receiving re-transmission operation information of the key telephone 20.

  The timepiece control means F50 has a function of controlling the timepiece circuit 15 and adjusting the timepiece circuit 15, and the call control means F42 uses data such as the current date, time, day of the week, and time acquired from the timepiece circuit 15. And display control means F45.

  The related telephone number storage means F51 is generally called a telephone directory in the telephone system, and stores information such as telephone numbers, names, and readings. Further, a plurality of telephone numbers (related telephone numbers) can be registered for the same party, and a predetermined schedule (for example, 0:00 to 9:00 for each day of the week, 9:00 to 19). : One or more of the telephone numbers may be stored as a priority designation telephone number in a time frame in a large frame such as 0:00, 19:00 to 24:00, or a time period in an hour unit. Is possible.

  The priority call destination line type storage means F52 has a function of storing the priority call destination line type (the line type of the other party to be preferentially transmitted), and may set the priority order instead of the presence / absence of priority. The destination line type can be identified by using the first multiple digits of the telephone number (for example, 050 for an IP phone, 080 and 090 for a cellular phone, 070 for a PHS, etc.). Multiple digits are stored as the destination line type. In addition, when a plurality of types of external lines (for example, a general fixed telephone line, an IP telephone line, a line connected to a mobile phone adapter, etc.) are accommodated in the key telephone main unit, It is also possible to store the priority order in combination with the destination line type.

  The external line type storage means F53 has a function of storing an external line type (for example, a general fixed telephone line, an IP telephone line, a line connected with a mobile phone adapter, etc.) accommodated in the key telephone main unit for each external line number. ing. This is used when the priority destination line type determination means F44 confirms the external line type of the captured external line at the time of transmission. External line type data is registered by the system data registration means F48, but in addition to telephone operation and registration from a personal computer, a method of automatically registering the type of unit of the external line circuit 13 connected to the key telephone main unit is also possible. It is.

  Next, a configuration example in the related telephone number storage unit F51 will be described with reference to FIG. The related telephone number storage means is generally called a telephone directory. For each abbreviated number (sometimes called a memory number) for uniquely identifying each party's information, the other party's name, reading, and item number management The minimum number of phone numbers that are used is stored.

  Further, in the configuration example of FIG. 3, a predetermined schedule (for example, time in a large frame such as 0:00 to 9:00, 9:00 to 19:00, 19: 0 to 24:00 for each day of the week) It is also possible to set one or a plurality of the telephone numbers as priority designated telephone numbers in a band or a time slot in an hour unit. Even when the priority designated telephone number is set, the priority destination line type is determined by the priority destination line type determining means F44, but the telephone number extracted by the related telephone number search means F43 is the priority designated telephone. The number is limited to a number, and is transmitted using a telephone number designated in priority in a specific time zone determined in advance. Further, when a plurality of types of external lines are accommodated, an external line of a high-priority calling side external line type is selected. Will use and send. For example, when a call is made to the other party with the abbreviated number 001 at 21:00 on Monday, in the configuration example of the priority call destination line type storage means (FIG. 4), the combination of the outgoing side external line type = IP line and the destination line type = 050 has priority. The transmission method that uses the IP line and uses the item number 3 “05001111XXXX” in FIG. 3 corresponds to the priority order 1, but the item number 2 “0901111XXXX” in FIG. 3 has priority at the time of the day of the week. Since the designated telephone number is used, the mobile telephone adapter line corresponding to the priority 6 in the configuration example of the priority call destination line type storage means (FIG. 4) is used, and the transmission method to the telephone number “0901111XXXX” is obtained. .

  Next, a configuration example in the priority call destination line type storage means F52 will be described with reference to FIG. The destination line type is not stored as a specific line type such as “mobile phone line”, “fixed phone line”, etc., but can be easily compared with the telephone number registered in the related telephone number storage means F51. The first multiple digits of the telephone number up to the range where the destination line type can be identified is stored as the destination line type.

  Further, in the configuration example of FIG. 4, a combination of the outgoing side external line type (IP line, fixed telephone line, etc.) and the destination line type is stored with priority. For example, when the IP line can be used at the time of outgoing call and a telephone number starting with “050” is registered in the related telephone number storage means F51 (the configuration example is FIG. 3) as the destination telephone number, the priority order 1 Outgoing line type = IP line and destination line type = transmission using a telephone number starting with “050” has the highest priority. In addition, when a call is made, an IP line or a fixed telephone line cannot be used and a mobile phone adapter line can be used, and a telephone number starting with “090” is a related telephone number storage means F51 (a configuration example is shown in FIG. 3). ), The outgoing call using the priority order 6 of the outgoing line type = the mobile phone adapter line and the destination line type = starting with the telephone number starting with “090” has the highest priority.

  Next, the flow of outgoing call processing in the central control unit 11 of the key telephone main device 10 according to the present invention will be described with reference to FIG. In addition, in FIG. 5, the order of each step shows an example, and you may replace arbitrarily in the range which does not change an effect | action and an effect.

  First, a destination designation operation is performed on the telephone (S101). The destination designation operation includes, but is not limited to, telephone directory search, outgoing call history search, incoming call history search, and direct entry of a telephone number by dialing operation.

  When there is an operation on the telephone side, the received data analysis means F47 receives the destination designation operation information from the telephone (S102).

  In step S103, the related telephone number search unit F43 collates with the related telephone number storage unit F44 to see if there are a plurality of telephone numbers related to the destination designation operation information received in step 102. Shifts to step S104, and if it does not exist (No), it is considered that a plurality of telephone numbers are not registered, and shifts to step S111.

  In step S104, it is checked whether the setting of the priority destination line type exists in the priority destination line type storage means F52. If it exists (Yes), the process proceeds to step S105, and if it does not exist (No), the process proceeds to step S111. Transition.

  In step S105, a related telephone number corresponding to the name or telephone number for which the telephone set the destination in step S101 is obtained from the related telephone number storage means F51, and the related telephone number corresponds to the priority destination line type. It is determined by checking the setting contents of the priority call destination line type storage means F52. If your name is not the phone number,

  Based on the related telephone number acquisition result and the priority destination line type determination result in step S105, processing for displaying the telephone number corresponding to the related telephone number and the priority destination line type on the telephone is performed (S106). If your name is not the phone number,

  After displaying on the telephone in step S106, waiting for reception of the number selection operation information from the telephone for a predetermined time (S107 to S108), if received (Yes in step S107), the telephone number selected by telephone operation is transmitted. If it is determined as the destination number (S109) and it has not been received for a certain period of time (Yes in step S108), the telephone number determined to be priority by the main device is determined as the destination telephone number (S110), and the process proceeds to step S112.

  In step S111, the telephone number for which the telephone set the destination in step S101 is determined as the destination telephone number, and the process proceeds to step S112. If the designation in step S101 is not the telephone number but the name of the other party, the telephone number registered in item number 1 of the related telephone number storage means F51 is used regardless of the presence or absence of the related telephone number. Confirm as a phone number.

  When the telephone number of the destination is determined in step S108, step S110, or step S111, a predetermined rule (for example, capture according to designation of the external line type used preferentially by the type of telephone number, or capture from the external line on the old number side) Then, the external line circuit 13 is captured (S112), telephone number display processing for the key telephone 20 is performed (S113), and transmission processing is performed using the telephone number as the telephone number of the destination (S114).

  Next, the flow of outgoing call processing in the central control unit 11 of the key telephone main device 10 according to the present invention will be described with reference to FIG. In addition, in FIG. 6, 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, a destination designation operation is performed on the telephone (S201). The destination designation operation includes, but is not limited to, telephone directory search, outgoing call history search, incoming call history search, and direct entry of a telephone number by dialing operation.

  When there is an operation on the telephone side, the received data analysis means F47 receives the destination designation operation information from the telephone (S202).

  Depending on the calling party, a predetermined schedule (for example, a time zone with a large frame such as 0:00 to 9:00, 9:00 to 19:00, 19: 0 to 24:00 for each day of the week, or In some cases, a telephone number designated for priority may be set depending on the time zone in units of one hour, so that the clock control means F50 obtains the day of the week / time at the time of the outgoing call operation (S203).

  It is confirmed whether or not the telephone number of priority designation at the day / time acquired in step S203 is set in the related telephone number storage means F51 (configuration example in FIG. 3) (S204). The related telephone number selection targets are limited to priority designated telephone numbers (S205). If not set (No), the subsequent related telephone number selection targets are all telephone numbers (S206), and the process proceeds to step S207. .

  The priority destination line type determination means F44 first sets “1” as the priority order in order to determine the combination of the outgoing side line type and the destination line type based on the priority order of the priority destination line type storage means F52 ( S207).

  Whether the priority destination line type corresponding to the priority set in step S207 exists in the priority destination line type storage means F52 (configuration example in FIG. 4) is collated (S208). If it exists (Yes), the process proceeds to step S210. However, if it does not exist (No), it is assumed that the priority destination line type is not set, and the process proceeds to step S209.

  In step S209, if a priority telephone number corresponding to the day of the week and time acquired in step S203 is set in the related telephone number storage means F51 (configuration example is FIG. 3), the telephone number is set as the telephone number of the call destination. If a telephone number designated as a priority is not set, the telephone number of item number 1 in FIG. 3 is confirmed as the telephone number of the call destination, and a predetermined rule (for example, an external line used preferentially by the type of telephone number) The external line circuit 13 is captured on the basis of the designation of the type or captured from the external line on the old number side, and the process proceeds to step S215. When a plurality of priority designated telephone numbers are set, the telephone number of the call destination is determined according to a predetermined rule (for example, the telephone number of the younger number in FIG. 3).

  If there is a priority destination line type in step S208 (Yes), it is checked whether or not the external line circuit 13 of the outgoing side external line type with the priority set in step S207 is empty (S210). If yes, the process proceeds to step S211, and if not empty (No), the process proceeds to step S213.

  In step S211, whether or not the telephone number corresponding to the priority destination line type collated in step S208 exists in the telephone directory is collated with the related telephone number storage means F51 (configuration example in FIG. 3). If yes, the process proceeds to step S212. If not (No), the process proceeds to step S213. Note that the telephone number to be verified in the related telephone number storage means F51 is either a priority designated telephone number or all telephone numbers by the processing from step S204 to step S206.

  In step S212, the telephone number corresponding to the priority destination line type checked in step S211 is determined as the telephone number of the call destination, and the external line circuit 13 of the caller side external line type checked in step S210 is captured. The process proceeds to S215.

  In step S213, in order to continue the priority destination line type determination process at the next priority level, it is confirmed whether or not the next priority level exists in the priority destination line type storage unit F52 (configuration example in FIG. 4). If yes (Yes), after the priority is incremented (S214), the process returns to step S208. For example, when the priority order before the transition to step S214 is “1”, the priority order is “2” in step S214.

  If it is determined in step S213 that the next priority order does not exist in the priority destination line type storage means F52 (configuration example is FIG. 4) (No), the process proceeds to step S209.

  When the destination telephone number is confirmed in step S209 or step S212 and the external line circuit 13 is captured, the telephone number is displayed on the key telephone 20 (S215), and the telephone number is set as the destination telephone number. This is performed (S216).

  In FIG. 6, a process is performed in which one telephone number that can be transmitted in the descending order of priority is determined and the calling process is performed. However, a plurality of telephone numbers that can be transmitted in descending order of priority are displayed on the telephone. As shown in steps S107 to S110, one telephone number is selected from a plurality of telephone numbers by telephone operation, and if there is no operation for a predetermined period of time, the telephone number determined as the priority by the main device is the destination telephone number. It is also possible to adopt a method of confirming as

  Next, the flow of the re-call process when the other party does not respond within a predetermined time after the call process in the central control unit 11 of the key telephone main device 10 according to the present invention will be described with reference to FIG. In addition, in FIG. 7, the order of each step shows an example, and may be arbitrarily changed within a range in which the operation / effect is not changed.

  After the call processing, the caller performs a re-send operation before responding to the other party, and the re-send control unit F49 analyzes whether the re-send operation information is received from the received data analysis unit F47 (S301) and is received (Yes) Moves to step S303, and if not received (No), moves to step S302.

  In step S302, after the call processing, the call control means F42 analyzes whether or not the other party has responded within a predetermined time, and if it responds (Yes), it shifts to a call state (S312) and does not respond (No). Shifts to step S303.

  In step S303, in order to perform a re-transmission process, the outside line that has been transmitted so far is disconnected, and the process proceeds to step S304.

  In step S304, the priority call destination line type determination process at the next priority is continued, and then the call is re-sent, so when the previous call process is performed on the priority call destination line type storage means F52 (the configuration example is FIG. 4). After the priority is incremented (S305), the process proceeds to step S306. If not (No), the process is performed. End and do not send again. For example, if the priority order that was finally set when the transmission process of FIG. 6 was performed is “2”, the priority order is “3” in step S305.

  In step S306, the priority number corresponding to the priority incremented in step S305 is checked to see if it exists in the priority destination line type storage means F52 (configuration example in FIG. 4). If it exists (Yes), the process proceeds to step S307. If it does not exist (No), the process ends and no re-transmission is performed.

  In step S307, it is checked whether or not the outside line circuit 13 of the outgoing side outside line type in the priority order incremented in step S305 is empty. If it is empty (Yes), the process proceeds to step S308, and if it is not empty (No). The process returns to step S304.

  In step S308, whether or not the telephone number corresponding to the priority destination line type collated in step S306 exists in the telephone directory is collated with the related telephone number storage means F51 (configuration example in FIG. 3). If yes, the process proceeds to step S309, and if it does not exist (No), the process returns to step S304. Note that the telephone number to be verified in the related telephone number storage means F51 is either a priority designated telephone number or all telephone numbers by the processing from step S204 to step S206 in FIG.

  In step S309, the telephone number corresponding to the priority destination line type verified in step S308 is determined as the telephone number of the call destination, and the external line circuit 13 of the outgoing side external line type verified in step S307 is captured. The process proceeds to S310.

  When the destination telephone number is confirmed and the external line circuit 13 is captured in step S309, the telephone number display processing for the key telephone 20 is performed (S310), and the transmission processing is performed using the telephone number as the destination telephone number (S311). ).

  After the calling process, the process returns to step 301 and is repeated.

  Although omitted in FIG. 7, if the caller performs an operation to cancel the call, the process is terminated and the call is not retransmitted.

1 is a schematic diagram of the configuration of a key telephone main device 10 and a key telephone 20 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 figure explaining the structural example of the related telephone number memory | storage means based on this invention. The figure explaining the example of a structure of the priority incoming call destination line | wire type memory | storage means based on this invention. The flowchart regarding the transmission process in the central control part 11 of the key telephone main apparatus 10 which concerns on this invention. The flowchart regarding the transmission process in the central control part 11 of the key telephone main apparatus 10 which concerns on this invention. The flowchart regarding the re-transmission process after the transmission process in the central control part 11 of the key telephone main apparatus which concerns on this invention.

DESCRIPTION OF SYMBOLS 10 Button telephone main apparatus 11 Central control part 12 Memory | storage part 13 External line circuit 14 Communication path switch 15 Clock circuit 16 Extension circuit
20 button telephone 21 control unit 22 data transmission / reception circuit 23 voice processing unit 24 transmitter / receiver 25 speaker 26 dial button 27 external line button 28 function button 29 LCD display F40 external line circuit control unit F41 speech path control unit F42 call control unit F43 related telephone number Search means F44 Priority call destination line type determination means F45 Display control means F46 Data transmission / reception means F47 Reception data analysis means F48 System data registration means F49 Retransmission control means F50 Clock control means F51 Related telephone number storage means F52 Priority call destination line type storage Means F53 External line type storage means

Claims (2)

A key telephone system comprising a main unit accommodating a plurality of types of external lines and a plurality of extensions and a plurality of extension telephones connected to the extensions,
The main device has a telephone directory function,
Related telephone number storage means for storing a plurality of telephone numbers in association with each other;
Related telephone number search means for searching for a telephone number associated with a telephone number designated from the extension telephone;
The plurality of associated telephone numbers are prioritized according to a predetermined schedule registered in advance,
Preferential destination line type storage means for storing the priority of the combination of the external line type and the telephone number;
Preferential destination line type determination means for determining whether the other party telephone number designated by the extension telephone is a destination line to be prioritized;
When the extension telephone designates the other party name or the other party telephone number by telephone directory search or outgoing call history or incoming call history or dial operation,
The main device determines whether or not the telephone number is a type of a destination line to be prioritized, searches for a related telephone number of the partner name or the partner telephone number, and currently uses the determination result and / or the search result Within the range of possible external line types, determine a combination of an external line type and a telephone number according to the priority, and notify the extension telephone,
The extension telephone displays the determination result and / or the search result notified from the main unit on a display unit of its own terminal, and confirms the other party telephone number by a predetermined operation or timeout. Button telephone system with functions. The button telephone system according to claim 1,
If a call cannot be made because the other party does not answer or is out of service area when a call is made with the determined telephone number, the extension telephone is notified to the extension telephone in accordance with the priority by a predetermined operation or timeout of the extension telephone. A button telephone system having a related telephone number display function.

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