JP4529627B2 - Key telephone incoming call response method, key telephone, and key telephone control device - Google Patents

Description

  The present invention relates to a button telephone incoming call response method, a button telephone, and a button telephone control apparatus that handle a plurality of incoming calls.

  In a key telephone control device capable of allocating office lines etc. to the line buttons of a key telephone, ringing a plurality of telephones when receiving an office line, and responding to incoming calls in response to an incoming call by an incoming response operation such as an off-hook operation. When two or more telephone groups jointly answer a local line incoming call to each group, priority is given to answering the incoming call that has arrived at the own group, and the incoming call to the other group is given priority. If you want to respond to incoming calls from other groups after confirming that there are no calls, as a well-known method, assign both the incoming station line of your own group and the incoming station line of the other group to the line button of each key telephone. The operator visually confirms the incoming call status with the LED lamp display (lighting color, blinking cycle, etc.) of the line button to which the group line of the group is assigned, and directly presses the line button. Beat, there is a key telephone call response process for responding with priority incoming call to the own group.

In addition, in order to respond to incoming calls on high-priority line buttons with a response operation such as an off-hook operation, an incoming call priority number is provided for each key telephone, and a line button number is associated with each incoming priority number. There is a button telephone call answering method in which an incoming call response button is selected according to the incoming call priority number at the time of answering operation by off-hook or the like during ringing, and the incoming call is answered. (For example, see Patent Document 1)
JP-A-1-168193

  However, in the above-described prior art button telephone call answering method, when a plurality of telephone groups jointly answer a local line incoming call to each group, the local line incoming of the group to be preferentially answered is displayed on the line button lamp. When there are multiple incoming calls on the respondent, the incoming calls are not necessarily answered in the order of arrival, or the incoming calls are answered in the order of arrival by response operations such as off-hook. However, since the prior art button telephone control device responds in the order of the first call arrival, when there is a mixture of other group's office line arrivals, it will respond to the first group's other party's line arrival, and it will not necessarily respond to the local line arrival to its own group. There was a problem that priority response was not possible.

  In the method of responding to an incoming call according to the incoming call priority number associated with the line button (Japanese Patent Laid-Open No. 1-168193), a higher incoming call priority number than the other group's office lines is assigned to the line button assigned with the own group's office line. Therefore, it is possible to respond to incoming calls to the local group by response operations such as off-hook operation in preference to incoming calls to other groups, but there is a problem that the incoming calls cannot be answered in the order of arrival. .

  An object of the present invention is to solve such a conventional problem, and makes a local line incoming call of the own group have priority over an incoming call of another group, and responds in order of incoming calls by a response operation such as an off-hook operation. It is also possible to provide a key telephone call answering method, a key telephone, and a key telephone control device that can similarly respond to incoming calls of other groups in the order of arrival.

In order to achieve the above object, the present invention stores in advance an incoming call priority number indicating an incoming call type and an incoming call priority associated with an incoming call for each line button provided in the key telephone, and for each incoming call priority number. The call setting information is stored as incoming queue data, and when an incoming call that matches the incoming call type of the line button is detected, the incoming call priority number of the line button is acquired and the call is set in the incoming call queue corresponding to the acquired incoming call priority number. Information is registered in order of arrival , the incoming call priority number belongs to the highest incoming call queue, and the earliest incoming call in the incoming call queue is received as the highest priority incoming call of the key telephone, and response operation such as off-hook operation wherein while responding to priority incoming calls, to measure the incoming waiting for an incoming call, when said incoming waiting time has exceeded a preset waiting time threshold, the incoming call belongs Remove from the incoming queue that is characterized in knitting that the incoming queue corresponding to high incoming priority number than the receiver priority number of the incoming call.

According to the present invention, the incoming call of the lower incoming priority number is always fixed to the same place, and when a predetermined time has passed, it is organized into an incoming call queue corresponding to the higher incoming priority number. By increasing the priority of incoming calls that have a long waiting time, it is possible to provide an incoming call reception service in consideration of the waiting time for incoming calls of a lower incoming call group .

In the present invention, in a button telephone call answering method in which a plurality of incoming calls are received and there are a plurality of incoming calls at the same time, an incoming call type associated with the incoming call and an incoming call for each line button provided in the key telephone are provided. Incoming priority number indicating priority is stored in advance , call setting information is stored as incoming queue data for each incoming priority number, and when an incoming call that matches the incoming call type of the line button is detected, the incoming priority number of the line button is set. acquired, registers the call setting information in the order of arrival in the incoming queue corresponding to the obtained receiver priority number, a receiver priority number belongs to the highest incoming queue, and the maximum arrival of incoming call in the incoming queue, the key telephone is called as a top priority incoming call, the in return operation off-hook operation, and the like as well as respond to priority incoming calls, to measure the incoming waiting for an incoming call, the incoming call waiting If you exceed a preset waiting time threshold, and wherein the organized incoming queue to which the incoming call is deleted from the incoming queue belonging, corresponding to high incoming priority number than the receiver priority number of the incoming call To do. As a result, an incoming call with a lower incoming priority number is not always fixed at the same level, and when a predetermined time elapses, the incoming call is organized into an incoming queue corresponding to the higher incoming priority number. By increasing the priority of incoming calls over a long period of time, it is possible to provide an incoming call reception service in consideration of waiting time for incoming calls of a lower incoming call group .

Further, in the method for organizing the incoming call queue, when the incoming call waiting time exceeds a preset waiting time threshold, the last arrival of the incoming call queue corresponding to an incoming call priority number higher than the incoming call priority number of the incoming call is determined. An incoming queue may be organized as a call . As a result, high-level incoming call types are not overtaken by late-arrival call types, so that it is possible to suppress an excessive increase in the priority of incoming calls .

  Next, an embodiment of a key telephone and a key telephone control device using the key telephone incoming call response method will be described.

The embodiment of the button telephone of the present invention receives a plurality of call setting information from the telephone control apparatus and associates each line button provided in the button telephone with an incoming call in a button telephone having a plurality of incoming calls at the same time. Line button data storage means for storing the incoming call priority number indicating the incoming call type and incoming call priority, and incoming call queue data storage means for storing call setting information for each incoming call priority number as incoming queue data. when detecting an incoming call that matches the incoming type, obtains the receiver priority number of line buttons that is disposed on the line button data storing unit, registers the call setting information in the incoming queue corresponding to the obtained receiver priority number has an incoming queue organizing means, among the incoming call is incoming queue standing, a receiver priority number is the highest level, and the receiver priority number of the receiving queue Oite highest arrival call With an incoming call which is registered as the highest priority incoming call has priority incoming call activation means for incoming start to key telephone, responds the top priority incoming calls in return operation off-hook operation, and the like Te, incoming call When the waiting time obtained by the waiting time measuring means exceeds a preset waiting time threshold, the incoming call is deleted from the incoming call queue to which the incoming call belongs, characterized by chromatic incoming queue organizing means for organizing the incoming queue corresponding to high incoming priority number than the receiver priority number of the incoming call. As a result, an incoming call with a lower incoming priority number is not always fixed at the same level, and when a predetermined time elapses, the incoming call is organized into an incoming queue corresponding to the higher incoming priority number. By increasing the priority of incoming calls over a long period of time, it is possible to provide an incoming call reception service in consideration of waiting time for incoming calls of a lower incoming call group .

In addition, when the incoming call waiting time exceeds a preset waiting time threshold, the incoming call queue is organized as the last call of the incoming call queue corresponding to the incoming call priority number higher than the incoming call priority number of the incoming call. It is characterized by. As a result, high-level incoming call types are not overtaken by late-arrival call types, so that it is possible to suppress an excessive increase in the priority of incoming calls .

An embodiment of a key telephone control device according to the present invention is a key telephone control device that accommodates a plurality of key telephones and rings a plurality of key telephones. An incoming call associated with an incoming call for each line button provided in the key telephone is provided. Line button data storage means for storing the incoming call priority number indicating the type and priority of the incoming call for each key telephone, and incoming call queue data storage means for storing the call setting information for each key telephone as incoming call priority number When the incoming call that matches the incoming call type of the line button of each button telephone is detected, the incoming call priority number of the line button of each button telephone arranged in the line button data storage unit is acquired, and each button Of the incoming call queues prepared for each incoming call priority number of the telephone, the call setting information registered in the incoming call queue corresponding to the incoming call priority number is received. Has a queue organizing means, among the incoming call is incoming queue standing, a receiver priority number is the highest level, and the receiver priority number the incoming queue priority incoming incoming call is registered as Oite highest arrival call to the call And having a highest priority incoming call activation means for activating incoming calls to a key telephone, responding to the highest priority incoming call by a response operation such as an off-hook operation, and a waiting time measuring means for measuring a waiting time of an incoming call; When the waiting time obtained by the waiting time measurement means exceeds a preset waiting time threshold, the incoming call is deleted from the incoming call queue to which the incoming call belongs, and the incoming call priority higher than the incoming call priority number of the incoming call characterized by chromatic incoming queue organizing means for organizing the incoming queue number. As a result, an incoming call with a lower incoming priority number is not always fixed at the same level, and when a predetermined time elapses, the incoming call is organized into an incoming queue corresponding to the higher incoming priority number. By increasing the priority of incoming calls over a long period of time, it is possible to provide an incoming call reception service in consideration of waiting time for incoming calls of a lower incoming call group .

Further, the incoming call queue organizing means corresponds to an incoming call priority number higher than the incoming call priority number of the incoming call when the waiting time obtained by the waiting time measuring means exceeds a preset waiting time threshold. The incoming queue is organized as the last incoming call of the incoming queue . As a result, high-level incoming call types are not overtaken by late-arrival call types, so that it is possible to suppress an excessive increase in the priority of incoming calls .

Example 1
Hereinafter, a button telephone incoming call response method and a button telephone according to Embodiment 1 of the present invention will be described with reference to FIGS.

  FIG. 1 is a configuration diagram of an IP telephone system in which a button telephone incoming call response method and a key telephone according to the first embodiment are used. In the configuration example of FIG. 1, a LAN is constructed in one site, and the LAN is connected to the key telephones 1111 to 11n4 of the present invention having a VoIP (Voice over IP) function and external lines 1211 to 12n1. The gateway devices 121 to 12n and a call server device 13 (telephone control device) that performs call control between each telephone and gateway device of the system are connected. Further, each of the telephones 1111 to 11n4 in FIG. 1 belongs to any one of the incoming call groups 1 to n composed of a plurality of telephones, and each telephone performs an operation of giving a priority response to an incoming call of the incoming call group as an incoming call of its own group. Assumed to be performed. Note that call control protocols employed in this IP telephone system are generally SIP (Session Initiation Protocol) and H.264. 323 (ITU-T standard), etc., but the button telephone of the present invention does not specify the call control protocol to be used, and can generate incoming calls of a plurality of calls and identify the incoming calls. Any call control protocol may be used as long as the additional information (incoming call type) is transmitted to the telephone.

  The key telephone 21 in FIG. 2 is a front view of the key telephones 1111 to 11n4 used in the present invention. The key telephone 21 includes a handset 22 that transmits and receives calls during a call, a dial pad 23 that dials the other party's number when making a call, and a line button that can visually indicate the incoming call state in association with the type of incoming call that has occurred. 24 and an LCD display 25 for displaying additional information such as incoming calls and other parties.

  In the explanation of the first embodiment, in order to make the explanation easier to understand, the line buttons 241 to 244 of the key telephones 1111 to 1114 belonging to the incoming call group 1 in FIG. ) Of the external lines 1211 to 1214 and 1 which is the number indicating the highest incoming priority number, and the line buttons 245 to 248 are one level higher than the incoming call types and the highest line of the external lines 1221 to 1224 of the incoming call group 2. Set 2 which is the lower incoming call priority number, and assign the numbers after 3 to the incoming call priority number to the remaining free line buttons for the other free line buttons according to the operation of the telephone user. The following explanation will be given on the assumption that the incoming call is given priority response. Further, for the button telephones 1121 to 1124 belonging to the incoming call group 2 in FIG. 1, the incoming call type and the highest incoming call priority number of the external lines 1221 to 1224 of the own group (incoming call group 2) are also displayed in the line buttons 241 to 244. 1 is set, and the line buttons 245 to 248 are set to the incoming call type of the external lines 1211 to 1214 of the incoming call group 1 and the incoming call priority number 2 that is one step lower than the highest level, and other incoming call groups As for the outside line, a number after 3 is assigned to the incoming call priority number in accordance with the operation of the telephone user to the remaining free line buttons, and the incoming call of the own group is given priority response. In the present embodiment, in the following description, the incoming call priority number is assumed to be 1 in the highest order, lower in the ascending order of the numbers, and the lowest order is assumed to be n.

  FIG. 3 is a functional block diagram for explaining the key telephone incoming call response method and the key telephone according to the first embodiment. The key telephone 31 includes a central processing control unit 32 that controls the telephone, a storage unit 33 that stores information necessary for performing various processes of the key telephone, a clock 34 that measures an incoming call waiting time, and an external device. LAN interface control unit 35 for communicating with (call server device, gateway device, telephone, etc.), voice control unit 36 having a CODEC function and a DSP function for packetizing voice signals, dial input, line button pressing and handset 361 A key input control unit 37 for detecting the on-hook / off-hook (on / off of the hook SW 371), an LED lamp control unit 38 for controlling the LED lamp of the line button 372, and an LCD for controlling display on the LCD display 391. And a display control unit 39.

  The storage unit 33 stores a processing program 331 for storing operation of the key telephone, system data 332 for storing setting data of the key telephone, and incoming calls associated with incoming calls for each line button provided in the key telephone. It has line button data 333 for presetting and storing an incoming call priority number indicating the type and priority of the incoming call, and incoming call queue data 334 for storing the priority of the incoming call to the key telephone and the incoming order.

  Here, although the incoming call type and the incoming call priority number are set for the line button provided in the key telephone, even if the telephone does not have a line button or has a smaller number of line buttons than the line button setting number, An incoming call type and incoming call priority number may be set as having a line button.

  Hereinafter, the operation of the first embodiment will be described in detail. First, using FIG. 1, an operation from when an incoming call is received until each key telephone receives call setting information will be described. In an IP telephone system (FIG. 1) capable of ringing a plurality of key telephones when an external line is received, when the external line 1211 is received, the external line 1211 is detected by the gateway device 121 accommodating the external line, and the external line 1211 is set up. Information is notified to the call server device 13. The call setting information is information that can associate an incoming call defined by a call control protocol applied in the IP telephone system with an incoming call type that is uniquely set in the line button by the telephone of the present invention ( (Including an outside line subscriber number, an outside line port number, etc.), and may include additional information such as a caller number received by the gateway apparatus 121 from an analog caller number notification line or an ISDN line. In the call server device 13 that has received the call setting information from the external line 1211, a plurality of pieces of telephone information that are targets for activation of incoming calls when an incoming call is received to the external line 1211 are set in advance. Send information. For example, when the telephones 1111 to 1124 are set as the call target telephones when receiving an incoming call to the external line 1211, the call setting information of the external line 1211 is transmitted from the call server 13 to the telephones 1111 to 1124.

  Next, using FIG. 3 to FIG. 5, the operation from the reception of the call setting information at the key telephone 1111 (button telephone 31) that has received the incoming call from the external line 1211 will be described in detail. The operation of the key telephones 1112 to 1124 is also used in the description of the operation of the telephone 1111. FIGS. 4 and 5 are telephone state transition process flowcharts for explaining the key telephone call response method and the operation of the key telephone according to the first embodiment.

  The key telephone 31 receives call setting information from the call server device via the LAN transmission path by the LAN interface control unit 35, and the received call setting information is sent to the central processing control unit 32. In the central processing control unit 32, it is determined by the processing program 331 that the received call setting information is information related to telephone call control, and the telephone state transition processing flow shown in FIG. 4 is performed according to the telephone state. The processing program 331 of the key telephone 31 receives the call setting information on the external line 1211 (402) in an arbitrary state (401) where the incoming call can be received such as an empty telephone state, an incoming call, and a call (402). An incoming call type identifying an incoming call to the included external line 1211 is acquired (403), line button data 333 preset and stored in the storage unit 33 is read, and the incoming call type of the received call setting information and the incoming call type of each line button Are compared (404). If there is a matching line button, an incoming call priority number corresponding to the matched line button is acquired in advance (405), and if there is no matching line button, a preset or fixed incoming call priority is obtained. It is assumed that a number has been acquired (406). When there is no matching line button, call control such as ignoring an incoming call or returning call disconnection information to a transmission source device may be used. When the incoming call priority number of the incoming call is determined by the above processing, the incoming queue data 334 of the storage unit 33 is read, and the last of the incoming call queues corresponding to the acquired incoming call priority number among the incoming call queues provided for each incoming call priority number. The call setting information received at the tail is registered (407), and the highest priority is selected as the highest priority incoming call with the highest incoming call priority number and the highest incoming call registered in the incoming call queue of the incoming call priority number. An incoming call selection process (408) is performed. As a result, the highest priority incoming call is selected from the incoming calls on the telephone, and if the telephone state is idle (409) according to the telephone state at the time of receiving the call setting information (409), the received incoming call is the highest. As a priority incoming call, the telephone is ringed and an incoming call activation process (410) for displaying additional information (incoming call outside line number, caller number, etc.) of the incoming call is performed, and the telephone state changes to the incoming state (414) ). If the telephone state is the incoming state (411), it means that there are a plurality of incoming calls, and it is confirmed whether the highest priority incoming call has been changed by a new incoming call (412). Is changed, the incoming call activation process (410) is performed. If there is no change, there is no need to update the incoming ringing and additional information display of the incoming call. Queuing (413) and the telephone state are maintained (415).

  Here, following the incoming call from the external line 1211, incoming calls from the external line 1212 (incoming group 1) and the external line 1221 (incoming group 2) are newly generated in the IP telephone system of FIG. In this case, as a result of the above processing, the telephones 1111 to 1114 belonging to the incoming call group 1 have the external line 1211-> external line 1212 in the incoming call queue of the incoming call priority number 1 and the external line 1221 in the incoming call queue of the incoming call priority number 2. Are registered for each incoming call. At this time, the priority order of the incoming calls in the telephones 1111 to 1114 is as follows: external line 1211 (incoming priority number 1)-> external line 1212 (incoming priority number 1)> external line 1221 (incoming priority number 2). The outside line 1211 (incoming group 1) is selected. In addition, in the telephone groups 1121 to 1124 of the incoming call group 2, the incoming call queue is organized by the incoming call priority order that gives priority to incoming calls to the external line of the own group (incoming call group 2). The priority number 1)-> external line 1211 (incoming priority number 2)-> external line 1212 (incoming priority number 2), and the external line 1221 (incoming group 2) is selected as the highest priority incoming call.

  Next, when an off-hook operation is performed on the telephone 1111 (button telephone 31) in the incoming state in which the highest priority incoming call is activated, the key input control unit 37 indicates that the hook SW 371 is turned off (off hook). Then, off-hook information is transmitted to the central processing control unit 32. In the central processing control unit 32, it is determined by the processing program 331 that the received off-hook information is information relating to call control of the telephone, and the telephone state is 501 to 507 in FIG. The state transition process flow shown is performed. The state transition process flow indicated by reference numerals 501 to 507 in FIG. 5 will be described below. When the telephone state is the incoming state (501), off-hook information is received (502), the highest priority incoming call that is ringing is set as the incoming call answering party of the telephone, and call response information indicating that the telephone 1111 has responded to the external line 1211 is displayed. The data is transmitted to the call server device 13 via the LAN interface control unit 35 (503). The call server device 13 that has received the call response information transmits the call response information to the gateway device 121 that accommodates the external line 1111, and a voice call channel is established by IP packets between the telephone and the gateway (504), and the telephone voice control is performed. A call between the key telephone 1111 and the external line 1211 is formed through the handset 361 connected to the unit 36. Further, since the incoming call disappears due to the response to the incoming call, the incoming queue data 334 is read, the call setting information is deleted from the incoming queue (505), the highest priority incoming call selection process (506) is performed, and the telephone state is changed. The call state is changed (507). In the key telephones 1112 to 1124 other than the key telephone 1111 that has received the call setting information from the external line 1211, the call server apparatus 13 that has received the call response information indicating that the key telephone 1111 has responded to the external line 1211. The call response information is received, it is recognized that there is no incoming call from the external line 1111, the call setting information from the external line 1111 is deleted from the incoming call queue, and the highest priority incoming call selection process is performed. A series of processes in which this call response information is received, the corresponding call setting information is deleted from the incoming call queue, and the highest priority incoming call selection process is performed are as follows. This is performed when an incoming call from the outside line 1211 is answered. In addition, even when the caller terminates the call and disconnects the incoming call before answering the incoming call, the call disconnect information is received from the call server device 13 and the corresponding call setting information is received in the incoming queue. And the highest priority incoming call selection process is performed.

  Next, when an on-hook operation is performed on the telephone in a call state, the key input control unit 37 detects that the hook SW 371 is turned on (on-hook), and the on-hook information is transmitted to the central processing control unit 32. In the central processing control unit 32, the received on-hook information is determined by the processing program 331 to be information relating to telephone call control, and the telephone state is the on-hook information receiving process in the call state. A state transition process flow indicated by 514 is performed. The state transition processing flow indicated by reference numerals 507 to 513 and 514 in FIG. 5 will be described below. On-hook information is received when the telephone state is the call state (507) (508), and call disconnection information is transmitted to the call server device 13 via the LAN interface control unit 35 (509). The call server device 13 that has received the call disconnect information transmits the call disconnect information to the gateway device 121 that accommodates the external line 1111. Thereafter, the incoming call queue data 334 in the storage unit 33 is read to check whether the call setting information is registered in the incoming call queue of each incoming call priority number of the telephone (510). If the call setting information is registered in the incoming call queue, the highest priority incoming call selection process (511) is performed again, and the highest priority incoming call is selected from among the incoming calls existing in the telephone, and the telephone is ringed. Then, an incoming call activation process (512) for displaying additional information (incoming call outside line number, caller number, etc.) of the incoming call is performed, and the telephone state is changed to the incoming state (513). If there is no call setting information in the incoming call queue, the telephone state is changed to the idle state (514).

  Details of the highest priority incoming call selection processing in the above description of the operation will be described below with reference to FIG. FIG. 6 is a process flow diagram for explaining the operation of the key telephone call answering method and the key telephone incoming call selection process of the first embodiment. In the highest priority incoming call selection process, the highest incoming priority number is 1, the lowest is n, and the incoming queue of the highest incoming priority number 1 is checked in order (601) to check whether or not it is registered in the first incoming queue. (602) If there is an incoming queue registration, it is confirmed whether the call setting information registered in the incoming queue is the same as the highest priority call setting information already registered (603). Call setting information is set in the highest priority call setting information (604). If the incoming queue is unregistered in the confirmation of the presence or absence of registration of the first incoming queue (602), the incoming queue (606) of the incoming priority number lower by one level is similarly confirmed whether or not the first incoming queue is registered. The call setting information in the incoming queue that is first confirmed for registration is the highest priority incoming call. If there is no incoming queue in the first incoming queue of all incoming priority numbers (607), it indicates that there is no incoming call in the telephone, and the highest priority call setting information is cleared (608).

  In this way, each time an incoming call to the telephone occurs, the highest priority incoming call is selected, and the telephone user is made unaware by responding to the highest priority incoming call by an off-hook operation of the telephone that is ringing. It is possible to respond to an optimal incoming call in consideration of the incoming call priority set in advance by the user and the incoming call arrival order.

  In addition, the processing described so far has been described for the button telephone 1111. However, each of the key telephones 1111 to 1114 belonging to the same incoming call group uses the incoming call outside line of the own group as the line button of the telephone from the incoming call outside line of another group. By setting the higher incoming priority number, the processing shown in the operation of FIG. 4 to FIG. 6 is performed in each key telephone, so that the incoming call of the own group is given priority over the incoming call of the other group, In addition, it is possible to respond in the order of arrival by a response operation such as an off-hook operation, and after there is no incoming call of the own group to be preferentially received, the incoming calls of other groups can be similarly answered in the order of arrival.

  In addition, the present invention achieves the above effect by setting the incoming call type and the incoming call priority number to the line button provided in the key telephone, but the virtual line button can also be applied to a telephone that does not have the line button. It is possible to achieve the same effect by setting the incoming call type and the incoming call priority number to the virtual line button and operating the virtual line button.

  Furthermore, in the call server device (telephone control device) that controls thousands to tens of thousands of telephones by controlling the priority of incoming calls with the telephone, it is possible to reduce memory resources and processing load. Can have.

  Next, an incoming call queue reorganization process by expiration of an incoming call waiting time of an incoming call of a key telephone and an incoming call of the key telephone according to the first embodiment of the present invention will be described with reference to FIG. FIG. 7 is a flowchart of timer cycle processing that is periodically started by the clock 34 of the key telephone 31. In the timer cycle processing of the button telephone shown in FIG. 7, the telephone receives call setting information in advance, the call setting information is already registered in the incoming queue data 334 of the storage unit 33, and the timer value is stored in the call setting information. It is assumed that the timer value is cleared at the time of registration in the incoming queue. In the key telephone 31, timer cycle processing is started by the clock 34, the incoming queue data 334 in the storage unit 33 is read, and the incoming call queue of the incoming call priority number one level lower than the highest is sequentially received (701), and the incoming call is set in advance. An incoming call waiting time threshold value of priority is acquired (702), and the timer value of the call setting information of the registered incoming queue is counted up (703). After counting up, the incoming call waiting time threshold of the received incoming call priority number is compared with the timer value of the call setting information (704). If the timer value is equal to or greater than the incoming call waiting time threshold, delete the incoming queue in which the call setting information is registered, and call setting information at the end of the incoming call queue with the incoming priority number one level higher than the incoming priority number of the deleted incoming queue. Is registered in the incoming queue (705). At this time, since the call setting information is newly registered in the incoming queue of the higher incoming priority number, the timer value of the call setting information is reset (706), and the incoming call waiting time monitoring with the new incoming priority number is performed. Done. If the timer value is not equal to or greater than the incoming call waiting time threshold, the processing of 705 and 706 is skipped. The above processing is carried out for all incoming queues having the same incoming call priority number (707), and after execution of all incoming queues having the same incoming call priority number, the incoming call priority number is further executed for all incoming queues that are one step lower (710). Then, call setting information of all the incoming queues registered in the incoming queue other than the highest incoming priority number that does not require the incoming priority number to be higher by one step (708). Finally, the highest-priority incoming call selection process is performed (709), and the incoming queue reorganization process due to the expiration of the incoming call waiting time of the key telephone is terminated.

  For example, in the telephone 1111 (incoming call group 1), in the state where there is an incoming call of the external line 1211 (incoming priority number 1)-> external line 1221 (incoming priority number 2), the call setting of the external line 1221 (incoming priority number 2) When the information timer value expires the incoming call waiting time (waiting time threshold exceeded), the incoming call priority number of the outside line (1221) rises one step higher, and the state where the incoming call exists is the outside line 1211 (incoming call priority number 1). -> Outside line 1221 (Incoming priority number 1) Even if a new incoming call is received from outside line 1212 (Incoming priority number 1), the state of the incoming call remains outside line 1211 (Incoming priority number 1)-> Outside line 1221 (Incoming call priority number 1)-> External line 1212 (Incoming call priority number 1), and the incoming call order of the external line 1221 is not overtaken by the external line 1212 of the last arrival.

  As a result, for low-level incoming calls that exceed a certain waiting time, incoming calls that have a long waiting time are required for telephone users who want to respond as soon as possible, as with incoming calls to their own group. Therefore, even if an incoming call is received from a lower incoming call group, an incoming call reception service considering waiting time can be provided.

(Example 2)
Hereinafter, the button telephone incoming call response method and the button telephone control device according to the second embodiment of the present invention will be described with reference to FIGS. 8 to 10 and FIGS.

  FIG. 8 is a functional block diagram for explaining the button telephone incoming call response method and the button telephone control device according to the second embodiment. The button telephone control device 81 measures a central processing control unit 82 that controls the entire device, a storage unit 83 that stores information necessary for performing various processes of the button telephone control device, and an incoming call waiting time. A clock 84, a time division switch 85 that forms a communication path between the telephone and the external line, an external line interface control unit that performs communication control and communication with the external lines 8611 to 86n4, and a plurality of internal telephones 8711 to 87n4 And an extension interface control unit 87 for performing communication control and a telephone call. The storage unit 83 stores the operation of the key telephone control device and performs call control of each telephone, and system data 832 stores the setting data of each key telephone connected as an extension telephone. Line button data 833 for storing the incoming call type associated with the incoming call and the incoming call priority number indicating the priority of the incoming call for each line button provided in each key telephone, and the priority of the incoming call to the key telephone, It has incoming queue data 834 for storing the incoming order for each key telephone. As described above, the line button data 833 and the incoming call queue data 834 stored in the storage unit 83 of the key telephone control device are the same as the line button data 333 and the incoming call queue data 334 of the storage unit 33 of the key telephone 31 of the first embodiment. Data for the number of telephones connected to the key telephone control device is stored as structure data. Each of the telephones 8611 to 86n4 belongs to one of the incoming call groups 1 to n including four telephones as an example, and each telephone has an operation of giving a priority response to an incoming call of the incoming call group as an incoming call of its own group. It is assumed that the incoming call line of the own group is set to the line button of each key telephone and the incoming call priority number higher than the incoming call line of the other group is set as in the first embodiment.

  Hereinafter, the operation of the second embodiment will be described in detail. In the key telephone control device 81 capable of ringing a plurality of key telephones when an external line is received, when an external line 8611 is received, the external line interface control unit 86 detects the external line reception and sends call setting information to the central processing control unit 82. It is done. In the central processing control unit 82, it is determined by the processing program 831 that the received call setting information is information relating to telephone call control, and an incoming call analysis process (FIG. 9) of the processing program 831 is performed.

  FIG. 9 is a process flow diagram showing the operation of the incoming call analysis process of the key telephone control device. When the call setting information is received by the processing program 831 (901), the incoming call type for identifying the incoming call is acquired from the external line included in the call setting information (902), and each button telephone set and stored in advance in the storage unit 83 is stored. The line button data 833 is read (903, 907), and the line button data 833 of each telephone is checked for the presence / absence of a line button having an incoming call type that matches the incoming call type in the call setting information (904). The presence / absence of a line button having an incoming call type that matches the incoming call type of the call setting information is checked for all the button telephones 8711 to 87n4 connected to the key telephone control device (906). If there is a line button that matches the incoming call type, it is determined that the call setting information is an incoming call to the button telephone, and the call setting information reception process for each telephone described with reference to FIG. (905). It should be noted that the incoming call determination to each key telephone is not based on the determination of coincidence with the incoming call type of the line button data 833, and the telephone set as the incoming call target may be set in advance from the incoming call type to improve processing efficiency. The incoming call type set for the line button of each key telephone is not limited to the incoming line call for setting the external line number etc. accommodated in the key telephone apparatus, but the directory number key used in a known private branch exchange or the like. An incoming call to the telephone may be displayed on the line button, and various functions for handling the call may be defined as an incoming call type to be a target incoming call of the present invention.

  By the above processing, as in the first embodiment, even when a plurality of incoming calls are generated in each button telephone, the highest priority incoming call selection process is performed each time an incoming call is generated, and the incoming call existing in each telephone is set. Of these, the highest incoming call priority number and the earliest incoming call is activated by each phone, giving priority to incoming calls to the group and receiving the first call to each phone. Can be ringed.

  Further, when an off-hook operation is performed on a telephone in an incoming state where the highest priority incoming call is activated, the extension interface control unit 87 detects the off-hook from the telephone and sends off-hook information to the central processing control unit 82. It is done. The off-hook information is determined by the processing program 831 to be information relating to the telephone call control, and thereafter, the button telephone call answering method and the operation of the key telephone according to the first embodiment of FIG. 5 are performed. When the telephone state is the incoming state (501), off-hook information is received (502), the highest priority incoming call that is ringing is selected as the incoming call response partner of the telephone, and the call response information is transmitted to the external line interface unit 86 (503) The central processing control device 82 instructs the time division switch 85 to form a communication path between the key telephone and the outside line (504). In addition, since the incoming call disappears due to the response to the incoming call, the incoming queue data of the telephone that received the off-hook information is read from the incoming queue data 834, the call setting information is deleted from the incoming queue (505), and the highest priority incoming call is received. Call selection processing (506) is performed, and the telephone state is changed to the call state (507). Here, the incoming call that disappeared due to the incoming call response is deleted from the incoming call queue of each other key telephone set registered in the incoming call queue as an incoming call from 831 in the processing program, and the highest priority incoming call selection process is performed. .

  When an on-hook operation is performed on the telephone during a call, the extension interface control unit 87 detects the on-hook of the telephone, and the on-hook information is sent to the central processing control unit 82. The on-hook information is determined by the processing program 831 to be information relating to call control of the telephone, and the on-hook information is received (508) when the telephone state is the telephone conversation state (507). Call disconnect information is notified (509). Thereafter, the incoming call queue data of the button telephone is read from the incoming call queue data 834 of the storage unit 83, and it is confirmed whether the call setting information is registered in the incoming call queue of each incoming call priority number of the telephone (510). If the setting information is registered, the highest-priority incoming call selection process (511) is performed, and the highest-priority incoming call is selected from the incoming calls existing on the telephone, the telephone is ringed, and additional information on the incoming call is obtained. An incoming call activation process (512) for displaying (the incoming call outside line number, the calling party number, etc.) is performed, and the telephone state is changed to the incoming call state (513). If there is no call setting information in the incoming queue, the telephone state is changed to the idle state (514).

  Thus, each time an incoming call is made to each telephone, the highest priority incoming call is selected for each telephone, and the telephone user is made to respond to the highest priority incoming call by an off-hook operation of the telephone that is ringing. It is possible to provide a button telephone call answering method and a button telephone control device capable of responding to an optimal incoming call in consideration of an incoming call priority set in advance by a user and an incoming call arrival order without being conscious of it can.

  In addition, as in the invention of the first embodiment, the present invention achieves the above effect by setting the incoming call type and the incoming call priority number to the line button provided in the key telephone. The same effect can be obtained by setting the incoming call type and the incoming call priority number to the virtual line button and operating the telephone that does not have a virtual line button.

  Next, the incoming queue reorganization processing by the expiration of the incoming call waiting time of the incoming call according to the second embodiment will be described with reference to FIG.

  FIG. 10 is a flowchart of timer cycle processing that is periodically started by the clock 84 of the key telephone control device 81. In the timer cycle processing of the key telephone control device, the incoming call queue data 834 stored in the storage unit 83 is read (1001, 1004), and the timer cycle processing (FIG. 7) of each key phone is performed (1002). The incoming queue reorganization process is performed for all the key telephones connected to the key telephone control apparatus (1003).

  This increases the priority of incoming calls that have a long incoming call waiting time in each of the key telephones connected to the key telephone control device, and the incoming call taking into consideration the waiting time even for incoming calls of a lower incoming call group. Reception service can be provided.

  The key telephone receiving method, the key telephone, and the key telephone apparatus according to the present invention have an effect that an incoming call to a key telephone having a line button can be answered according to the priority of the user. It is used for an IP key telephone connected as a telephone terminal of a telephone system, a key telephone control apparatus for connecting a plurality of key telephones, and an exchange.

FIG. 1 is a configuration diagram of an IP telephone system in which a button telephone incoming call response method and a button telephone according to Embodiment 1 of the present invention are used. Front view of a button telephone used in the present invention Functional block diagram of a key telephone incoming call response method and a key telephone according to the first embodiment of the present invention Button telephone incoming call response method and button telephone state transition processing flowchart of embodiment 1 of the present invention Button telephone incoming call response method and button telephone state transition processing flowchart of embodiment 1 of the present invention Example 1 of a key telephone call answering method and key telephone's highest priority incoming call call selection processing flowchart according to the first embodiment of the present invention Button telephone incoming call response method and button telephone timer cycle processing flowchart of embodiment 1 of the present invention Functional block diagram of a button telephone incoming call response method and a button telephone control device according to the second embodiment of the present invention Flowchart processing for incoming call of button telephone call control apparatus and button telephone incoming call response method of embodiment 2 of the present invention Flowchart processing flowchart of button telephone incoming call response method and button telephone control apparatus of embodiment 2 of the present invention

Explanation of symbols

31 button telephone 32, 82 central processing control unit 33, 83 storage unit 34, 84 clock 35 LAN interface control unit 36 voice control unit 37 key input control unit 38 LED lamp control unit 39 LCD display control unit 81 button telephone device 85 time division Switch 86 External interface control unit 87 Extension interface control unit

Claims (6)

In a button telephone call answering method in which multiple incoming calls are received and there are multiple incoming calls at the same time, an incoming call type indicating the incoming call type associated with the incoming call and the priority of the incoming call is provided for each line button provided in the key telephone. Priority number is stored in advance , call setting information is stored as incoming queue data for each incoming priority number, and when an incoming call that matches the incoming call type of the line button is detected, the incoming priority number of the line button is acquired and acquired. register the call setting information in the order of arrival in the incoming queue corresponding to the receiver priority number, a receiver priority number belongs to the highest incoming queue, and the maximum arrival of incoming call in the incoming queue, the highest priority incoming calls EKT is incoming, the in return operation off-hook operation, and the like as well as respond to priority incoming calls, to measure the incoming waiting for an incoming call, the incoming call waiting time previously set waiting If in excess of the time threshold, then removed from the incoming queue to which the incoming call belongs, key telephone call, characterized in that to organize the incoming queue corresponding to high incoming priority number than the receiver priority number of the incoming call Response method. When the incoming call waiting time exceeds a preset waiting time threshold, the incoming call queue is organized as the last call of the incoming call queue corresponding to the incoming call priority number higher than the incoming call priority number of the incoming call. The button telephone incoming call response method according to claim 1. In a key telephone that receives a plurality of call setting information from the telephone control device and has a plurality of incoming calls at the same time, the incoming call type associated with the incoming call and the priority of the incoming call are set for each line button provided in the key telephone. Line button data storage means for storing the incoming call priority number and incoming queue data storage means for storing call setting information as incoming queue data for each incoming priority number, and detecting incoming calls that match the incoming call type of the line button If you acquires receiver priority number of line buttons that is disposed on the line button data storage unit has an incoming queue organizing means for registering the call setting information in the order of arrival in the incoming queue corresponding to the obtained receiver priority number, The incoming call that has the highest incoming call priority number in the incoming call queue that contains the incoming call and that is registered as the earliest call in the incoming call queue of the incoming call priority number. As priority incoming call has priority incoming call activation means for incoming start to key telephone set, said in return operation off-hook operation, and the like as well as respond to priority incoming calls, waiting time measuring to measure the latency of an incoming call And when the waiting time obtained by the waiting time measuring means exceeds a preset waiting time threshold, the incoming call is deleted from the incoming call queue to which it belongs and is higher than the incoming call priority number of the incoming call. EKT characterized by chromatic incoming queue organizing means for organizing the incoming queue corresponding to the receiver priority number. When the waiting time obtained by the waiting time measuring means exceeds a preset waiting time threshold, the incoming call queue organizing means receives an incoming call corresponding to an incoming call priority number higher than the incoming call priority number of the incoming call. 4. The key telephone according to claim 3, wherein an incoming queue is organized as the last incoming call of the queue . In a key telephone control device that accommodates a plurality of key telephones and rings a plurality of key telephones, a call reception priority number indicating an incoming call type and an incoming call priority associated with an incoming call for each line button included in the key telephone. the has a line button data storing means for storing for each key telephone set, an incoming queue data storing means for storing each key telephone call setting information for each receiver priority number as the incoming queue data, incoming line buttons of each button telephone When an incoming call that matches the type is detected, an incoming call priority number of the line button of each button telephone placed in the line button data storage unit is acquired, and an incoming call queue prepared for each incoming call priority number of each button telephone Call setting information is registered in the incoming queue corresponding to the incoming call priority number in the order of arrival. Previous number is the highest position, and an incoming call which is registered as the highest arrival call in the incoming queue of the receiver priority numbers the highest priority incoming call has priority incoming call activation means for incoming start to key telephone set, off-hook operation In response to the highest priority incoming call by a response operation such as a waiting time measuring means for measuring the waiting time of the incoming call, and a waiting time threshold in which the waiting time obtained by the waiting time measuring means is set in advance. If you exceed a button which the incoming call is deleted from the incoming queue belonging, characterized by chromatic incoming queue organizing means for organizing the incoming queue of the higher of the incoming priority number than the receiver priority number of the incoming call Telephone control device. When the waiting time obtained by the waiting time measuring means exceeds a preset waiting time threshold, the incoming call queue organizing means receives an incoming call corresponding to an incoming call priority number higher than the incoming call priority number of the incoming call. 6. The button telephone control device according to claim 5 , wherein the incoming call queue is organized as the last incoming call of the queue .

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