JPH05136888A - Absence deciding device - Google Patents

Abstract

PURPOSE:To stochastically decide the absent state of a telephone set or an extension telephone set stored in a private branch exchange in accordance with absence history in the past. CONSTITUTION:When a call is made to the extension telephone set 100, and a ringing is issued, incoming ringing time up to a response is measured by a timer counter part 104 and a response time measuring means 105, and it is analyzed together with the response time in the past by a statistical data analyzing means 106, and is stored in a statistical data storage means 107. When the ringing is continued, the absent state is decided stochastically by comparing the measured value of the response time measuring means 105 with the statistical data stored in the statistical data storage means 107, and absent incoming processing such as absent transfer, is executed by a call processing and a control means 101.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absentee determination apparatus for controlling a called party absence processing or the like depending on the absence state of a telephone or an extension telephone housed in a private automatic branch exchange.

[0002]

2. Description of the Related Art In a conventional private automatic branch exchange, when implementing a call forwarding function or the like that works depending on the absence of an extension, it is accommodated by discriminating the absence of the extension by a predetermined time. All the extensions were taken uniformly.

Further, in the case of a single telephone, and also in the case of realizing an answering machine function and a transfer function, it is judged as absent and the above-mentioned processing is carried out after a predetermined time has passed. An absence determination device for determining the absence state of the extension in the case of the conventional private automatic branch exchange will be described below with reference to the flowchart of FIG.

When a call arrives at an arbitrary extension telephone and the extension telephone starts to ring (step 600), in order to determine that the extension telephone is absent for the ringing of the incoming call for a certain time or more. , Start a response waiting timer (step 601). If the extension telephone responds while the extension telephone is ringing, the response waiting timer is stopped and the incoming call response processing is performed (steps 602 and 6).
03, 604). When the caller stops the call while the extension telephone is ringing and the arrival of the call on the extension telephone is completed, the response waiting timer is stopped to perform the call termination processing (steps 605, 606, 607). When the response waiting timer times out while the extension telephone is ringing, it is determined that the extension telephone is absent and the callee absence processing such as call forwarding is performed (steps 608 and 609).

In the case of a single telephone, when the waiting timer times out in the same manner (step 60).
8), the answering machine function such as the answering machine function and the transfer function, which are registered in advance by the user, are processed (step 60).
9).

[0006]

However, in the conventional system as described above, it is determined that all extensions accommodated in the private automatic branch exchange are absent at the given threshold time, This is not an appropriate judgment method, and if you are too busy to keep up with the response and it is judged that you are absent even though you are in the room, or if the location of the telephone is close to your location, it is far away. In the case of people as well, there was a problem that they were uniformly determined to be absent at the same time. This was true for a single phone as well.

It is an object of the present invention to provide an absence determination device that solves the above conventional problems.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a response time measuring means for measuring an incoming call response time from the occurrence of an incoming call to a telephone until the answering, and the measured extension incoming call. Statistical data analysis means for statistically analyzing the response time, statistical data storage means for storing the analysis result of the statistical data analysis means, ringing time of an incoming call to the telephone and the statistical data storage means It is configured to include an absent state determining means for probabilistically determining the absence of the telephone from the stored data.

[0009]

With the above-described structure of the present invention, the absence status of each telephone can be determined based on past incoming call response time statistical data without setting the absence determination time that has been uniformly determined up to now. In addition, since it can be automatically identified by the ringing time of the telephone, it is possible to improve the serviceability of the call forwarding function that operates depending on the absence of the telephone, such as the call forwarding function in the case of a private branch exchange and the telephone answering machine function. ..

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings by taking a case of a private branch exchange as an example.

FIG. 1 shows a private automatic branch exchange according to the present invention.
FIG. 2 is a block diagram of a main part constituting a control unit required for call processing control of an extension telephone and determination of absence of an extension. FIG. 2 is a flow chart showing an outline of processing when an extension is called in a private automatic branch exchange according to the present invention. FIG. 3 is a graph showing the relationship between the cumulative probability density of the normal distribution and the standard deviation.

In FIG. 1, 100 is an extension telephone, and 101
Is a call processing control unit that realizes functions such as making and receiving an incoming call and a call from the extension telephone 100. Reference numeral 102 denotes an incoming call sounding means, which is activated by the call processing control means 101 and sounds to notify the extension telephone 100 of an incoming call. Reference numeral 103 denotes an incoming call response detecting means which detects that the extension telephone 100 has responded to the ringing of the incoming call. Reference numeral 104 denotes a timer counter unit, which updates its contents at regular intervals. Reference numeral 105 is a response time measuring means, which is an incoming call ringing means 102, an incoming call response detecting means 103,
From the output of the timer counter unit 104, the extension telephone 100
It measures the ringing duration of the incoming call and the time it takes to answer the incoming call. In a broad sense, the timer counter unit 104 is included. Reference numeral 106 denotes a statistical data analysis means, which is a means for statistically analyzing the time from the start of ringing of the extension telephone 100 to the response and obtaining the average value, standard deviation, and number of occurrences. Reference numeral 107 denotes a statistical data storage means for storing the average value, standard deviation, and number of occurrences of the results of the analysis of the time from the start of ringing of an incoming call that has occurred in the extension telephone 100 in the past to the response by the statistical data analysis means 106. At the first time, an appropriate value is set in advance. Reference numeral 108 denotes an absent state determination means, which receives the incoming call ringing duration time from the response time measuring means 105 after an incoming call is generated in the extension telephone 100, and the extension telephone 100 detects the extension telephone 100 from the statistical data stored in the statistical data storage means 107. It is a means for determining whether or not the user is absent.

The above-mentioned configuration is used, and the operation thereof will be described with reference to the flowchart of FIG.

When the extension telephone 100 receives an incoming call and starts ringing (step 200), the timer counter section 10
4. The response time measuring means 105 starts the response time measurement for measuring the incoming call ringing time of the extension telephone 100 (step 201). When the extension telephone 100 answers during ringing, the response time measurement is stopped (step 20).
2, 203).

[0015]

[Equation 1]

By inputting the response time measurement value of the response time measuring means 105 to the statistical data analyzing means 106, the response time is statistically analyzed, and the number of occurrences, the average response time, The response time standard deviation is calculated and stored in the statistical data storage means 107, and the timer counter 104
After clearing, the incoming call answer process is performed (step 20).
4,205). When the call originator stops the call while the extension conversation device 100 is ringing and the call reception of the extension telephone 100 is completed, the response time measurement is cleared and the call termination process is performed (steps 206, 207, 208). .. Extension telephone 1
If the ringing continues at 00, the measured value of the response time measuring means 105 is compared with the statistical data stored in the statistical data storage means 107, and the statistical data analyzing means 106 of the extension telephone 100 is used. The absent state is determined stochastically. Here, for the sake of simplicity, description will be given using a general normal distribution as shown in FIG. FIG. 3 is a graph showing the relationship between the cumulative probability density of the normal distribution and the standard deviation, and as shown in the figure, 95% of the data exist in the section of the standard deviation of ± 2 times centering on the average value. Are known. Therefore, when the value of the timer counter for measuring the response time exceeds the average value stored in the statistical data storage means 107 plus twice the standard deviation, the absent probability of the extension telephone 100 becomes 95% or more. In this embodiment, the absentee probability is 95%.
When it exceeds the limit, the state of the extension telephone 100 is determined to be absent for the first time, and the call processing control means 101 is notified,
Call recipient absence processing such as call forwarding is performed (step 20).
9, 210).

Next, there will be described another embodiment of the present invention in which a telephone has an absence determination device.

FIG. 4 shows an analog type telephone,
FIG. 5 is a block diagram of a control unit required to perform absence determination and output a message according to the absence state, and FIG. 5 is a flowchart showing an outline of processing when the telephone receives a call.

In FIG. 4, reference numeral 400 denotes an incoming signal detecting means for detecting an incoming signal output from a telephone office or a private branch exchange. Reference numeral 401 denotes an incoming call sounding means, which receives the output of the incoming call signal detecting means 400 and sounds the telephone when an incoming call arrives. A hook switch 402 opens and closes a loop with a central office or a private branch exchange to notify an outgoing call and an incoming call and enable a call. A dial signal output means 403 outputs line selection information to a telephone office or a private branch exchange using a pulse signal or a tone signal. Four
Reference numeral 04 is a transmitting / receiving means, which is composed of a speaker and a microphone,
Allows communication with the other party connected via the central office or private branch exchange. A message reproducing unit 405 reproduces and outputs a message recorded in advance on a loop with a telephone office or a private branch exchange. 40
Reference numeral 6 denotes a timer counter section, which is a means for updating the content at regular intervals and counting time. Reference numeral 407 denotes a response time measuring means, which is the time from the output of the incoming signal detecting means 400, the hook switch 402, and the timer counter section 406 to the ringing duration of the incoming call after the incoming call to the telephone or the time until the incoming call is answered. To measure. A statistical data analysis unit 408 is a unit that receives the time from the start of ringing of the incoming call to the response of the telephone by the response time measurement unit 407 and statistically analyzes it to obtain an average value, standard deviation, and number of occurrences. .. A statistical data storage unit 409 stores the average value, the standard deviation, and the number of occurrences of the results analyzed in the past by the statistical data analysis unit 408. At the first time, an appropriate value is set in advance. Reference numeral 410 denotes an absent state determining means, which receives the ringing duration of the incoming call from the response time measuring means 407 after an incoming call is received on the telephone and determines whether or not the absence state is based on the statistical data stored in the statistical data storage means 409. Is a means for determining.

The operation will be described below with reference to the flowchart of FIG. When the incoming signal detecting means 400 detects an incoming signal output from a telephone station or a private branch exchange, the incoming call ringing means 401 is activated to start ringing the telephone (step 500), and the time during which the ringing is being performed is measured. In order to do so, the timer counter section 406 is activated and input to the response time measuring means 407, and the measurement of the response time measuring means 407 is started (step 501). If a response is received while the telephone is ringing, the timer counter unit 406
Is stopped and the measurement of the response time measuring means 407 is stopped (steps 502, 503).

The response time is statistically analyzed by inputting the value of the response time measuring means 407 into the statistical data analyzing means 408, and as shown in (Equation 1), the number of occurrences, average response time, response time standard After the deviation is calculated and stored in the statistical data storage means 409 (step 504), the activation of the incoming call ringing means 101 is stopped and the incoming call ringing is stopped (step 505). This enables a telephone call using the transmitting / receiving means 404. If the incoming signal detection means 400 confirms that the incoming call has disappeared while the telephone is ringing, the timer counter section 406 is stopped and the timer counter of the response time measuring means 407 is cleared, and the incoming call ringing means 40 is activated.
1 is stopped and the ringing of the incoming call is stopped (step 50).
6, 507, 508). When the ringing of the telephone continues, the value of the timer counter of the response time measuring means 407 is compared with the statistical data stored in the statistical data storage means 409, and the same as in the first embodiment. Absence determination means 410 stochastically determines the absence state. When the value of the counter of the response time measuring means 407 exceeds the average value stored in the statistical data storage means 409 + the standard deviation of 2 times, the absent probability becomes 95% or more, so it is judged as absent, and the hook switch. After closing 402 and answering the incoming call, the message reproducing means 405 is activated to output the previously recorded absence message (step 50).
9, 510, 511).

In this case, not only the transmission of the absent message but also an answering machine function for recording the message of the other party may be used if necessary, and when the user is absent, such as forwarding to a predetermined place according to a user's instruction. Can perform possible services.

The numerical value of the probability at the time of absence determination is not limited to the above value and may be set freely.

The absence determination device may be provided not only in the case of a single telephone but also in the extension telephone housed in the private branch exchange or in the extension telephone side.

[0025]

As is apparent from the above embodiments, according to the present invention, it is possible to automatically and randomly determine the absence state of a telephone, which was previously determined by the uniform absence determination time. It is not necessary to set the absence determination time of the system, and if it is applied to a private branch exchange, it can be handled for each extension telephone. Therefore, it is not necessary to consider the installation conditions, etc. It is possible to provide an absentee determination device in which the serviceability of the function that operates as described above is improved.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of a private branch exchange to which an absence determination device according to an embodiment of the present invention is applied.

FIG. 2 is a flow chart showing an outline of processing when the extension is called.

FIG. 3 is a graph showing a relationship between a cumulative probability density of a normal distribution and a standard deviation.

FIG. 4 is a block diagram of a main part of a telephone to which an absence determination device according to another embodiment of the present invention is applied.

FIG. 5 is a flow chart showing an outline of processing upon receiving an incoming call.

FIG. 6 is a flowchart showing an outline of processing when an extension call is received in a conventional private automatic branch exchange.

[Explanation of Codes] 100 Extension Telephone 101 Call Processing Control Means 102 Incoming Ringing Means 103 Incoming Answer Detection Means 104 Timer Counter Unit 105 Response Time Measuring Means 106 Statistical Data Analyzing Means 107 Statistical Data Storage Means 108 Absence State Determining Means

Claims (2)

[Claims] 1. A response time measuring means for measuring an incoming call response time from the occurrence of an incoming call to a telephone and a response, a statistical data analyzing means for statistically analyzing the measured extension incoming call response time, and the statistics. An absent state in which the absence of the telephone is stochastically determined from the statistical data storage means for storing the analysis result of the data analysis means and the ringing time of the incoming call and the stored data in the statistical data storage means when an incoming call occurs in the telephone. An absence determination device comprising a determination means. 2. The telephone is an extension telephone housed in a private automatic branch exchange, and when the result of determination by the absent status determining means is determined to be absent, call processing control for controlling call origination / incoming call and call function in the private automatic exchange. 2. The absence determination apparatus according to claim 1, wherein the means is configured to perform a called party absence processing such as forwarding.