JPH03147449A - Key telephone system - Google Patents

Abstract

PURPOSE:To select a path offering the cheapest charge in terms of probability by each talking destination by storing a newest mean talking time in the event of actual preceding talking by destination and selecting the path offering the cheapest charge based on the stored information. CONSTITUTION:When a call from a telephone set 2 is finished, a call control section 14 sends a talking party telephone number, that is, the path information and the talking time communicated up to now to an accumulation information recording section 21. when the information in the recording section 21 is revised, the recording section 21 starts an average talking time arithmetic section 20. Every time the arithmetic section 20 is started from the recording section 21, the telephone number in the recording section 21 revised just precedingly and each talking time information for N times up to now are received and an average talking time per one call is calculated from the talking times for the N times of calls. When the preceding talking number of times together with the just preceding talking is N and in the case of N>M, the mean talking time per one call for M times of talking times is calculated. The arithmetic section 20 sends the mean talking time stated as above and its talking destination telephone number to a setting time recording section 18 at each calculation of the mean talking time.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a button telephone device, and in particular, a button telephone device that automatically selects an economical route among the lines of a plurality of telecommunications carriers and selects a telephone number to call. This invention relates to a button telephone device that sends out calls to an exchange.

[Conventional technology]

A conventional key telephone device of this type is, for example, as shown in FIG. 3, composed of a key telephone main device 1 and one or more telephones 2 housed therein.

When calling from telephone 2 to a destination via a line with multiple telecommunications carriers, telephone 2
A serial dial signal is sent to the code receiving section 11.

The code receiving section 11 converts this serial signal into a parallel signal, for example an 8-bit signal, and sends it to the call control section 14.

The call control unit 14 transmits this parallel signal to the selection information determination unit 15.
send to

The selection information determination unit 15 calls the route registration unit 16 based on this parallel signal.

If there are routes corresponding to a plurality of different communication carriers for each dial signal in advance, the route registration unit 16 registers all of these routes in response to the above-mentioned dial signal.
It is stored as telephone numbers corresponding to these routes. In response to a call from the aforementioned selection information determining section 15, the route registration section 16 indexes the route corresponding to the dial signal from the telephone 2, and sends the indexed route information to the aforementioned selection information determining section 15.

The selection information determining section 15 retrieves the fare information for this route information from the fare information storage section 17. Next, the selection information determining section 15 takes out the setting time information from the setting time recording section 18.

The same set time is normally set in advance in the set time recording unit 18 for all call destinations when the key telephone device is installed.

The selection information determining unit 15 described above calculates the fee based on each information of the route, set time, and fee.

The selection information determining unit 15 described above compares the fee stored in the selection information recording unit 19 with the fee calculated by the selection information determining unit 15 described above.

The aforementioned selection information recording section 19 is a temporary storage circuit, and includes 1
Once the call ends, the memory contents will be deleted.
In the case of the first comparison, since the above-mentioned information recording section 19 does not record the charges, the above-mentioned selection information determining section 1
Select information recording unit 19 to select the fare calculated by 5 and the corresponding route.
be stored temporarily in the memory.

Further, if the fee calculated by the selection information determining section 15 described above is lower than the fee stored in the selection information recording section 19, the selection information determining section 15
The fee information in 9 is rewritten to the fee information calculated by the selection information determining unit 15.

That is, the charge information is updated.

If the fare calculated by the selection information determining section 15 is higher, the route and fare information in the selection information recording section 19 are left unchanged.

The selection information determining unit 15 described above, as explained so far,
From the route index for the sent dial signal, calculate the fare for this route, compare it with the fare stored in the information recording unit 19, and select the cheaper fare and its route information.The information recording unit 19 The operation up to the update is repeated for the number of routes stored in the route registration unit 16.

Therefore, by such an operation, the route remaining in the selection information recording section 19 at the end becomes the route with the lowest fare.

The selection information determining section 15 retrieves the route corresponding to this lowest charge from the selection information recording section 19 and sends it to the selection information sending section 13 via the call control section 14.

This selection information sending unit 13 converts the dial signal into a dial signal corresponding to the selected route and sends it to the external exchange 3. Subsequently, the above-mentioned call control section 14 controls the communication path switching section 12 to perform the communication (not shown) in the button telephone main device 1 from the above-mentioned telephone set 2 that issued the dial signal to the external exchange. Set up a call path.

Further, when the call is completed, the above-mentioned call control section 14 releases the set call path within the key telephone device.

[Problem to be solved by the invention]

In the conventional key telephone device described above, a constant call time is set regardless of the destination of the call. On the other hand, the call fee system consists of a fixed fee for one call and a fee that is required at regular intervals, both of which differ depending on the carrier used.

Therefore, the cheapest call route generally varies depending on the call time, so if a fixed call time is set as described above, there is a drawback that the call route with the lowest charge cannot necessarily be selected.

The purpose of the present invention is to record the past call time for each call destination, calculate the past average call time as the most probable call time for each call destination, and calculate the past average call time for each call destination. The object of the present invention is to provide a button telephone that can automatically select the least expensive call route based on the following information.

[Means to solve the problem]

The button telephone device of the present invention accommodates at least one telephone, and when a dial code for a long distance connection is received from the telephone, a call charge for a preset time is used for each telecommunications carrier line of a communication route. A button telephone device that calculates the route with the lowest call charge, converts the selection information of the route into a dial signal, and sends it to an external exchange. a cumulative information recording section that records the call time for each call; and a cumulative information recording section that controls the setting and release of a call path of the telephone in the key telephone device and records the called destination telephone number and call time each time a call is completed. an average call time calculation unit that calculates and outputs an average call time each time the cumulative information recording unit updates information based on the cumulative information from the cumulative information recording unit; Record the average call time for the predetermined telephone number based on the output from the call time calculation section, and set the time in advance if there is no record of the set time when an inquiry is received from within the key telephone device. and a set time recording section that records the fixed value as the set time together with the telephone number that received the inquiry and sends out the set time.

〔Example〕

Hereinafter, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing the button telephone device of the present invention. In FIG. It is an external exchange that is connected. Code receiving section 11 in button telephone main device 1, call path switching section 12,
The selection information sending section 13, the selection information determining section 15, the route registration section 16, the charge information storage section 17, and the selection information recording section 19 are exactly the same as those of the conventional button telephone device of this type already explained with reference to FIG. Since the operation is simple, the explanation will be omitted.

In addition to the operations in the conventional key telephone device described above, the call control unit 14 accumulates the telephone number, that is, route information, and call duration of the call destination that has been called until now, when the call made from the telephone 2 ends. It is sent to the information recording section 21.

For example, as shown in FIG. 2 (It), this cumulative information recording unit 21 stores the past call times for each telephone number in the order of the most recent call as 1, and records N times in order from the newest to the oldest call times. , remembers the duration of each call.

The call destination telephone number and call time sent from the full-speed call control unit 14 are input into this cumulative information recording unit 21, and the order of the corresponding phone number is recorded in the recording section 1, and the call time up to now is recorded. The assigned order increases by 1, and the record of call time that was in the N order up until now is erased.

That is, the information in the cumulative information recording section 21 is updated to the latest information.

When the information in this cumulative information recording section 2-1 is updated, this cumulative information recording section 21 starts up the average call time calculation section 20.

Every time this average call time calculating unit 20 is activated from the cumulative information recording unit, it receives the most recently updated telephone number in the cumulative information recording unit 21 and the information on each of the N calls up to now, and receives this information. The average call time per call is calculated for N call times.

If the number of past calls is M including the most recent call, then N>
If M, the average call time per call for M call times is calculated.

Every time the average call time calculation section 20 calculates the average call time described above, it sends the above-mentioned average call time and the telephone number of the called party to the set time recording section 18.

For example, as shown in FIG. 2 (^), the set time recording unit 18 has a storage area in which phone numbers and set times corresponding to the phone numbers are stored, and the average call time received is recorded. is recorded in the setting time recording section of the corresponding telephone number. That is, the latest average call time per call is updated and recorded as the set time.

When this set time recording unit 18 receives an inquiry from the selection information determining unit 15 about the telephone number consisting of the following, if the set time corresponding to the telephone number is not recorded,
The set time recording unit 18 records the telephone number that received the inquiry, records a certain initial value, for example, 1 minute, as the set time, and sends this set time to the selection information determining unit 15. Set the internal program.

The set time recording section 18, average call time calculation section 20, and cumulative information recording section 21 described above can each be constructed of an electronic circuit having a processor and a memory, which are programmed according to the procedure described so far.

〔Effect of the invention〕

As explained above, the button telephone device of the present invention accumulates the latest average call time of actual calls in the past for each call destination, updates it every time a call is made, and calculates the minimum call time based on this average call time. Since the route with the lowest charge is selected, the route with the lowest charge can be selected for each destination with probability.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing an embodiment of the present invention, Figure 2 (^
) and (B) are explanatory diagrams of the storage contents in the set time recording section and cumulative information recording section in FIG. 1, and FIG. 3 is a block diagram showing a conventional key telephone device. 1... Button telephone main device, 2... Telephone, 18...
- Setting time recording section, 20...Average call time calculation section, 2
1...cumulative information recording section.

Claims (1)

[Claims] When at least one telephone is accommodated and a dial code for a long-distance connection is received from said telephone, the call charge for a preset time is calculated for each telecommunications carrier line of the communication route and the lowest call is made. A button telephone device that selects a toll route, converts the selection information of the route into a dial signal, and sends it to an external exchange, records the call time of each of the latest finite number of past calls to a predetermined telephone number. an accumulated information recording section; a call control section that controls the setting and opening of a communication path of a telephone in the button telephone device and sends the called destination telephone number and call time to the accumulated information recording section each time a call is completed; , an average call time calculation unit that calculates and outputs an average call time every time the cumulative information recording unit updates information based on the cumulative information from the cumulative information recording unit;
Recording the average call time for the predetermined telephone number based on the output from the average call time calculation unit, and setting the time in advance if there is no record of the set time when an inquiry is received from within the key telephone device. 1. A button telephone device, comprising: a set time recording section that records a predetermined fixed value as a set time together with a telephone number that makes an inquiry, and sends out the set time.