JPH05110691A - Transfer control method and electronic exchange - Google Patents

Abstract

PURPOSE:To exactly transfer a calling even when a moving time is a little uncertain by storing a schedule table permitting the registration of plurar transfer destinations for each transfer registrant at the same time, deciding the priority order according to the storage information, and sending a calling to a transfer registrant with a code number confirmed. CONSTITUTION:A terminal number for each transfer register and a schedule table permitting the registration of plurar transfer destinations at the same time are stored in a storage device 9. An electronic exchange detects an originating call to a transfer registrant and receives a dial signal is of an incoming terminal, and a central control unit 8 retrieves a schedule table corresponding to the terminal number requiring incoming. The unit 8 transmits to the self terminal in the case of no transfer destination registration, and prioritizes the transfer destinations when there are transfer destination registrations. It also requires the input of a code number through voice from a talkie device 7, and confirms it to receive a transfer calling. Thus, a calling can exactly be transferred even when a moving time is a little uncertain.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer control method and an electronic exchange, and more particularly to a method for efficiently transferring a call to a destination of a telephone subscriber when the subscriber moves from place to place with time. And a configuration of an electronic exchange suitable for carrying out the method.

[0002]

2. Description of the Related Art Electronic exchanges are available when the called party is absent.
Since it is an absentee transfer service, it is possible to add a function to transfer an incoming call by registering the transfer destination. In particular, there has been proposed a call processing control system that can be used for transfer when the location of the called subscriber moves with time and the location and time of the called party are not deterministic (Japanese Patent Laid-Open Publication No. Sho 62-2).
69547). This call processing control method uses the arrival time defined in the subscriber's schedule as a key to retrieve the terminal numbers according to the subscriber's whereabouts recorded at the times before and after that, and compare both terminal numbers to find if they are different. ,
First, it is a method of receiving an incoming call at a terminal before moving, and receiving at a terminal after moving if there is no response for a certain period.

[0003]

The call processing control method described in the above-mentioned patent publication considers the time difference between the schedule of the subscriber and the actual action, but visits the transfer destination. In describing the time, it is not considered to describe multiple transfer destinations in the schedule at the same time. Therefore, when there is no response to the first transfer destination, the call transfer is attempted uniformly to the mobile registration destinations before and after that time, and the number of transfer times until the call is transferred to the transfer registrant may increase. is there. In addition, there is a possibility that the call may arrive even if there is a response at the transfer destination and there is no transfer registrant there. This can lead to confusion when a subscriber other than the one who registered the transfer responds. Subscriber schedule of conventional call processing control system
In terms of maintenance, the schedule reconfiguration function such as addition, deletion, and change of schedule corresponding to the change of schedule after the move is not considered. Therefore, it is an object of the present invention to solve the above-mentioned problems, and to realize a method for appropriately forwarding an incoming call to a subscriber moving in place and time, and an electronic exchange for carrying out the method. In particular, when a plurality of transfer destinations are described in the schedule at the same time, the most appropriate transfer destination is determined, and a transfer method that reduces the number of transfers is realized.

[0004]

In order to achieve the above object, the present invention is a transfer control method in which a transfer control according to the present invention transfers an incoming call to a called subscriber to a transfer destination registered in advance. The schedule table for each transfer registration subscriber is stored in the device by allowing multiple transfer destinations to be described at the same time, and there is an incoming call at the time when the above multiple transfer destinations are described in duplicate. At this time, the priority order of a plurality of transfer destinations is determined from the time information of the schedule table, and the transfer is performed. In order to carry out the above transfer control method, the storage device of the electronic exchange is provided with a schedule pointer table having a schedule pointer for managing a schedule for each transfer registered subscriber, and a schedule table pointed to by the schedule pointer. A central control unit for managing a schedule pointer and a schedule table is provided, the central control unit is searched for the schedule pointer table, and the transfer registration subscription obtained by searching the schedule table indicated by the schedule pointer. A means for transferring the call to the terminal to which the person moves is provided. When duplicate registration at the same time is permitted in the schedule table, and when transfer to a plurality of places is scheduled at a certain time, the transfer destination of the priority order is determined and the call is transferred according to the priority order.

In a preferred embodiment, at the terminal to which the incoming call is transferred, in order to prevent a subscriber other than the subscriber who registered the transfer from responding, it is confirmed that the subscriber who registered the transfer responds. Provide means. Further, a torch device is provided in the exchange to send a confirmation signal to the subscriber terminal.
Furthermore, by calling a special number from the destination terminal, even if the user visited a destination not described in the above schedule table, the destination was included in the schedule and conversely registered in the schedule, but to that location. If you want to cancel the move of, delete the move destination from the schedule,
Further, there is provided means for changing the moving time registered in the schedule table even when the movement is earlier or later, that is, means for reconfiguring the schedule table in the storage device recording the schedule table. These schedule table reconfigurations are provided with means for confirming the subscriber who has changed the schedule by the personal identification number, in order to prevent operation by a subscriber other than the subscriber who registered the transfer.

[0006]

The scheduled transfer destination, the transfer period start time and the transfer period end time for each transfer destination are registered in advance in the storage device attached to the electronic exchange, and the call can always be transferred to the scheduled transfer destination. In addition, by registering which terminal the subscriber is currently located from the transfer destination in the exchange, even if you take actions that are outside the registered schedule, the moving location, transfer period start time and transfer period end time will be out of schedule. However, the transfer destination can be followed. Even when the scheduled time of movement is not clearly determined, a plurality of transfer destinations are registered at the same time, transfer priorities are given to the plurality of transfer destinations registered at the same time, and according to the above priority order,
Sequential transfer of calls to terminals scheduled to move increases flexibility in scheduling. Since it is necessary to input the personal identification number in order to answer the transfer call, it is possible to prevent the subscribers other than those who know the personal identification number from responding. As a result, it is possible to avoid the confusion caused by the careless incoming call of the transfer call.

[0007]

The present invention will be described in detail below with reference to the drawings. FIG. 1 shows a block diagram of an electronic exchange in which a transfer control method according to the present invention is implemented. The electronic exchange is similar to a normal electronic exchange, and includes a call line switch 5, subscriber terminals (telephones) 10-1, 10-2 ... 10-n, and trunk lines 6-1 and 6-2. It has a central controller 8 in which the communication path switch 5, the trunk circuits 6-1, 6-2, a torch device 7, a storage device 9, a timer 4 and the like are controlled by a program. In particular, in the present embodiment, in order to realize the transfer control method of the present invention, the storage device 9 is formed by a subscriber who sets transfer control.
It has a schedule pointer table 1 and a schedule table 2 as shown in FIG.

In the schedule pointer table 1, the terminal numbers 1-2 to be accommodated and the schedule pointer 1-1 corresponding to each terminal are recorded. Schedule table 2
Is provided for each of the schedule pointers 1-1, and the transfer time and the transfer destination terminal number for that time are recorded.

FIG. 3 shows a transfer destination determination flowchart when the electronic exchange processes a transfer call in the transfer control method according to one embodiment of the present invention. The transfer control method of the present invention will be described below with reference to FIG. The terminal subscriber who desires the transfer control, as shown in FIG. 2, has a schedule table for each terminal instructed by the terminal number 1-2 of each transfer registered subscriber and the schedule pointer 1-1 in the storage device 8 of the electronic exchange. 2-1 and 2-2 are stored. The electronic exchange detects the call to the transfer registered subscriber (step s1) and receives the dial signal of the receiving terminal (step s2). The central controller 8 determines whether the dial signal is a special number (a specific number assigned for changing the schedule table 2 or the like) (step s3).

If the dial signal is not a special number, the central control unit 8 searches the schedule pointer table 1 corresponding to the terminal number for which an incoming call is requested (step s).
4) The central controller 8 determines whether or not transfer registration is present at the current time (step s5). If there is no transfer registration, the incoming call is received at the requested terminal (step s20), and the selection of the called terminal is completed (step s21). Step s5
If the transfer registration is present, the schedule table 2 of the terminal number indicated by the schedule pointer 1-1 is searched (step s6). The transfer destination corresponding to the current time is searched (step s7), the number of transfer registration points is counted, and when two or more transfer destinations are registered at the current time, control is passed to step s11, and if there is one, control is passed to step s8. Transfer. 1
When the location is found, the schedule table 2 is referred to and the call is transferred to the terminal for which transfer is registered at the current time (step s
8). When the transfer destination terminal is empty, the call is received at the transfer terminal (step s10), and the selection of the receiving terminal is completed (step s21). When the above-mentioned terminal is blocked in step s9, the control is moved to step s20, and the control of trying to receive the call to the own terminal is performed.

When two or more transfer destination terminals are registered at the current time in step s7, the transfer priority terminal order of the two or more transfer destination terminals is determined (step s1).
1). 1 of (Step s11) for determining transfer priority terminal order
Examples will be described. Transfer points A and B at time t
C, D. ． ． ． The case where n transfer destinations are redundantly registered will be described. Transfer to the transfer point A from the incoming call start time T _AST to the incoming call end time T _AEND ,
From the transfer start time T _BST to the transfer end time T at the transfer point B
It is assumed that the data is transferred up to _BEND , and similarly to the transfer location N from the incoming call start time T _NST to the incoming call end time T _NEND . Here, the current time T satisfies the following condition. T _AST <T <T _AEND , T _BST <T <T _BEND , ..., T _NST <T <T _NEND ... (1) Next, T _AM , T _BM , T _CM , ... ..., T _NM is defined as follows.

T _AM = T _AST + (T _AEND −T _AST ) / 2 (2) T _BM = T _BST + (T _BEND −T _BST ) / 2 (3) T _CM = T _CST + (T _CEND -T _CST ) / 2 ... (4) T _NM = T _NST + (T _NEND- T _NST ) / 2 ... (5)

[0013] The above _{T AM, T BM, T CM} , ······, T NM using the following _{T AD, T BD, T CD} , ·····, the T _ND of the central control unit Calculate with calculation means. Let T be the current time. T _AD ＝ ｜ T-T _AM ｜ ・ ・ ・ ・ (6) T _BD ＝ ｜ T-T _BM ｜ ・ ・ ・ ・ (7) T _CD ＝ ｜ T-T _CM ｜ ・ ・ ・ ・ (8) T _ND = | T-T _NM | ··· (9) (where | X | represents the absolute value of X.) This T _AD , T _BD ,
T _CD , ..., T _ND is an intermediate time between the transfer period start time and the transfer period end time for each of a plurality of transfer destinations, and is the difference between the current time T and the intermediate time. The first transfer destination, the second transfer destination, the third transfer destination, ...

In order to prioritize the transfer destinations and to reliably transfer the call to the transfer registrant when searching for the transfer destination, the call is received at the transfer destination terminal after the transfer destination subscriber answers. Before, from the Toki device 7 of the electronic exchange to "Terminal 2500
The call that was requested to be transferred to (transferred registration terminal number) was transferred. When you want to receive this transfer call, please input your PIN code "and send a voice message or signal tone to prompt the responder to enter the PIN code. At the same time, a caller such as “I am looking for a transfer destination” or a signal tone may be sent to the caller. When the respondent desires to receive an incoming call, the personal identification number is input by the PB signal. When no incoming call is desired, "#" or the like is transmitted by a PB signal to reject the incoming call. At this time, if the personal identification numbers match, the transfer call is received at the above terminal,
If they do not match, it is considered that the incoming call is rejected from the above terminal.

The processing after the priority is determined will be described. First, the transfer destination terminal priority number n is set to 1 (step s12). When the number of registered terminals is N, n
If ≦ N, the timer 4 is started (step s1).
4). Next, in step s15, if there is rejection of an incoming call from the n-th priority terminal (mismatch of the personal identification number, when the terminal is blocked or when the timer 4 times out), the value of n is incremented by 1 (step). s18). Then, the timer 4 is initialized (step s19).

Again, in step s13, the number N of terminals registered for transfer at the same time is compared with the priority number n of the terminal to be transferred next. When n> N is satisfied in step s13, that is, when an attempt is made to call all the terminals registered at the same time but the call cannot be received, it is determined that the call cannot be received (step 17). At this time, the talkie device 7 sends a message such as "No transfer registrant found" or a signal tone to the caller. After this, the control is moved to step s21, and the selection of the receiving terminal is ended. When the n-th priority terminal can receive the call at step s15, the call is received at the n-th priority terminal (step s16), and the selection of the called terminal is completed (step s).
21).

Next, the control when the special number is received in step s3 will be described. An example will be described when the schedule table 3 shown in FIG. 4 is registered. Here, the terminal number of the transfer registrant is set to 2502 for convenience. Therefore, the schedule table of the pointer 1200 for the terminal number 2502 is checked. FIG. 4 shows the schedule table 2-3 of the pointer 12000. In FIG.
T _AST and T _AEND represent the start time and end time at the place A, respectively, and T _BST and T _BEND represent the start time and end time at the place B, respectively. The same applies hereinafter.

When the destination terminal A (terminal number 27000) arrives at the terminal B (terminal number 2701) earlier than the terminal B installation location estimated time T _BST (step s311), the terminal B sends a PB signal. At (special number + transfer registration source terminal number '250
The central controller 8 rewrites the start time T _BST of the transfer data table 2-3 of the transfer registration source terminal to the current time T by dialing 0 '+ PIN + specific number' * etc. ' _{Rewrite the} end time T _{AEND in A} to T _OUT . Therefore, after this time, until the time T _BEND , the schedule for which the call requested to be transferred to the transfer registration source terminal is transferred to the terminal number 2701 is rewritten, that is, reconfigured. When rewriting this schedule table 2-3,
From the Toki device 7 of the electronic exchange, "the transfer destination is 2
Set it to 701. Message such as “” or a signal sound may be sent. FIG. 5 shows the state of processing when the above-mentioned movement becomes faster in terms of time and place.

If the user arrives at the location B after the estimated arrival time T _BST at the location where the terminal B is installed, that is, if the movement is delayed (step 312), the terminal A (special number + transfer registration source terminal number '2500' + password) By dialing (number + leaving time T _AOUT ), the central controller 8 sets T _AEND and T _BST of the schedule table 2-3 corresponding to the transfer registration source terminal to the terminal installation location A scheduled leaving time T _AOUT . rewrite. By this operation, the call for which the transfer registration source terminal has received the call by the time T _AOUT can be received by the terminal A. At this time, a message such as "Transfer to terminal A until time T _AOUT ." FIG. 6 shows how the above movement is delayed in terms of time and place.

When the terminal 2514 at the location X which is not registered in the schedule table 2-3 is added (step 3
13) A case where the user visits the place X where the terminal 2514 not registered in the schedule is installed before moving from the place I to the place J will be described as an example. Let T _{XIN be} the time width for staying at place X. At this time, after arriving at location X (special number + transfer registration source terminal number '25
Dial 00 '+ PIN + T _XIN ) with PB signal. The central controller 8 adds the location X to the schedule table 2-3, sets the transfer period start time T _XST to the location X at the current time T, and sets T _XEND at the current time T + T _XIN . Furthermore, the schedule is reconfigured by delaying all scheduled times after the schedule registration time T _{JST in} the schedule table 2-3 by T _XIN . All of the schedule T _XIN from this time "the current time from the talkie device 7
Delay Message such as “” or a signal sound may be transmitted. FIG. 7 shows the state of processing when adding a destination to this schedule.

When deleting the planned moving part registered in the schedule (step 314), cancel moving to the place J where the terminal 2709 registered in the schedule is installed before moving from the place I to the place J In any case, from any terminal (special number + transfer registration source terminal number '2500' + password + '#' + terminal number 270
9) by calling the PB signal, the central controller 8 reconfigures the schedule by rewriting the transfer period start time T _KST to the next destination K to T _JST which was the transfer period start time to the location J. I do. At this time, the talkie device 7 may send a message or a signal tone such as "advance all schedules after the current time by T _JEND -T _JST ."

As another case, when it is not necessary to close the schedule (special number + transfer registration source terminal number '250)
Dial 0 '+ PIN +' * '+ terminal number 2709) etc. FIG. 8 shows a situation in which the planned moving location registered in the schedule is deleted. When canceling all schedules (step s315) When canceling all schedules for some reason,
From any terminal (special number + transfer registration source terminal number '250
All the schedules registered in the schedule table can be canceled by calling PB signal with 0 '+ PIN +'##'). Number 2500). At this time, the talkie device 7 indicates that “the call after the current time is the own terminal 250
You will receive 0. A message such as “” or a signal sound may be transmitted.

According to the above-mentioned schedule changing method, the schedule can be changed with a short operation procedure, but the special number processing can be simplified by providing only the method of changing all the schedules. In order to omit the input of the own terminal number at the time of changing the schedule or to prevent the malicious schedule change, a method of permitting the schedule change only from the terminal that registered the schedule may be adopted.

In the above-mentioned embodiment, the case where the electronic exchange processes the transfer call has been described, but a part of the processing of the transfer call can be provided with the telephone terminal. In this case, the hooking function used in the private branch exchange (PBX), the polarity reversal function of the telephone line for notifying the calling terminal that the called party has answered, and the telephone terminal equipped with a storage device and a central control unit Is required.

[0025]

As described above, by using the present invention, even if the transfer registrant has registered several transfer destinations at the time T, the priority order of the transfer destinations is determined and the priority order is set. Find the call transfer destination. When a call arrives at the forwarding registration destination, the forwarding registration person is confirmed by inputting a personal identification number, so the call can be reliably forwarded to the forwarding registration person and the confusion caused by answering an unexpected forwarding call can be prevented. .. The procedure for finding the location where the transfer registrant is likely to be present can be continued and the call can be reliably transferred to the transfer registrant. further,
Even after registering the schedule once and starting the movement, it is possible to change, add, and delete the schedule from the destination terminal to reconfigure the schedule, so there is ambiguous schedule like real movement, Schedules can be registered even if transfer times overlap. In this way, there is an effect that it is possible to provide a service that suits the actual conditions of movement of people.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an electronic exchange in which the present invention is implemented.

FIG. 2 is a diagram showing a schedule pointer table and a schedule table provided in a storage device of an embodiment of an electronic exchange according to the present invention.

FIG. 3 is a flowchart diagram of an embodiment of a transfer control method according to the present invention.

FIG. 4 is a diagram showing a schedule table provided in a storage device of an embodiment of an electronic exchange according to the present invention.

FIG. 5 is an explanatory diagram of an operation (processing when movement is hastened) in one embodiment of the transfer control method according to the present invention.

FIG. 6 is an explanatory diagram of an operation (processing when movement is delayed) in one embodiment of the transfer control method according to the present invention.

FIG. 7 is an operation in one embodiment of the transfer control method according to the present invention (processing when adding a migration destination from a schedule)
FIG.

FIG. 8 is an operation in one embodiment of the transfer control method according to the present invention (processing when deleting a migration destination from a schedule)
FIG.

[Explanation of symbols]

1 ... Schedule pointer table 1-1 ... Schedule pointer, 1-2 ... Terminal number, 2 ... Schedule table, 2-3 ... Example of schedule table, 4 ... Timer 5 ... Call path switch, 6-1,6-2
Trunk circuit, 7 ... Talkie device, 8 ... Central control device 9, Storage device, 10-1, 10-2 ... 10-n ... Subscriber terminal.

Claims (8)

[Claims] 1. A transfer control method for transferring an incoming call to a called subscriber to a transfer destination registered in advance, wherein a schedule table for each transfer registered subscriber is stored in a storage device of an exchange, and a plurality of transfer destinations are duplicated at the same time. It is allowed to be described and stored, and when there is an incoming call at the time when the plurality of transfer destinations are redundantly described, the priority order of the plurality of transfer destinations is determined from the time information of the schedule table, A transfer control method characterized by transferring. 2. The transfer control method according to claim 1, wherein the priority is determined by determining an intermediate time between a transfer period start time and a transfer period end time for each of a plurality of transfer destinations, and determining the current time and the intermediate time. A transfer control method characterized in that a priority order of transfer is given from a terminal having a small time difference. 3. The transfer control method according to claim 1, wherein a message or a signal sound for prompting the input of a personal identification number is transmitted from the exchange before the call is received at the transfer destination terminal, and the transfer is performed from the transfer destination terminal. A transfer control method, characterized in that the password provided is evaluated, and if the password is evaluated to be valid, the call is transferred to the transfer destination terminal. 4. The transfer control method according to claim 1, further comprising means for detecting a special number call from the terminal, wherein the schedule table pointed to by the schedule pointer is scheduled according to input data from the special number call terminal. A schedule reconfiguration method in transfer control, characterized in that at least one of adding a new schedule to the table, deleting the schedule from the schedule table, and changing the time registered in the schedule table. 5. The method according to claim 4, wherein the electronic exchange sends a signal prompting the user to input a personal identification number to the terminal before performing at least one of the addition, the deletion and the change. A schedule reconfiguring method in transfer control, characterized in that, when a personal identification number is input, the validity of the personal identification number is confirmed, and then the schedule table is reconfigured. 6. An electronic exchange having a recording device for recording a schedule of a transfer registration subscriber and a central control device for storing a management program for transferring an incoming call to a transfer destination registered in advance according to the schedule. The recording device has a table having a schedule pointer for managing the schedule of, and a schedule table pointed to by the schedule pointer and registered by allowing registration of a plurality of call transfer destinations at the same time. A transfer for transferring the call to the destination terminal of the transfer registration subscriber, which is obtained by the central controller searching the schedule pointer table and the schedule table pointed to by the schedule pointer. An electronic exchange having means. 7. The electronic exchange according to claim 6,
When a plurality of call transfer destinations are registered in the schedule table at the same time, information for determining the transfer destination priority is recorded in the plurality of call transfer terminals, and the central control device transfers the call according to the information. An electronic exchange characterized by having a means for determining a priority. 8. The electronic exchange according to claim 7,
The information is the transfer period start time and the transfer period end time of the plurality of call transfer destinations, and the means for determining the transfer destination order obtains an intermediate time between the transfer period start time and the transfer period end time, An electronic exchange characterized by comprising arithmetic means for giving a priority order of transfer from a terminal having a small difference from the intermediate time.