JPH01114149A - Talking route selection system - Google Patents

Abstract

PURPOSE:To select automatically a taking route with simple means by providing a table storing a collation data among a ground selection number, a talking time zone and a taking route for each ground selection number. CONSTITUTION:An MPU 4 collates a dial number sent by a caller in case of toll calling by a telephone set 8 with a data stored in a table 7. When a ground selection number registered in the table 7 is included in a dial number, the talking route is identified by a talking time zone based on the storage data in the area corresponding to the ground selection number. Thus, the number to select the talking route is added to the dial number sent by the caller and the result is sent to an external line via an external line circuit 9. Thus, the talking route is selected automatically by a simple means.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a system which is connected to a telephone line network that has a plurality of call routes for long-distance calls and allows the caller to select the call route to the destination. The present invention relates to a method for selecting a call route in a telephone switching system or a telephone set.

[Background of the invention and prior art]

In recent years, a system of multiple telephone companies has been established in Japan, and when making a long-distance call, for example, taking into account the call cost, the call route (precept company) used by the caller is decided by multiple telephone companies. You can now select any call route.

A telephone line network that allows the caller to select a call route is constructed as shown in FIG. That is,
A private telephone exchange system (private branch exchange, button telephone equipment, etc.) PBX is a telephone company that owns local lines (hereinafter referred to as the core company), and the central company's line (local line) LA Combined via □, and
The telephone device is connected to the central company's central office Cl0 (A2) via the same central company's line (local line) LA.

The telephone line route (toll line) connecting the central company's telephone stations Cl0 (AI) and Cl0 (A2) includes a route that goes through the main company's own line LA (hereinafter referred to as the trunk route). ), the second core company's telephone office Cl0
(Bl), Cl0 (B2) via the line LB, the third telephone company's telephone station Cl0 (CI)
), a route via the circuit LC provided between Cl0 (C2) and the telephone station Cl0 (DI) of the fourth telephone company,
The route via the line LD provided between Cl0 (D2) (hereinafter, the route via the lines LB, LC, and LD is referred to as a non-core route. Also, the second to fourth telephone companies are referred to as non-core companies. There is).

In the above telephone line network, telephone stations Cl0 (AI), telephone stations Cl0 (B1), Cl0 (01), Cl0 (Dl)
The lines LA, , LA, , LA, which connect the
and telephone office Cl0 (A2) and telephone office Cl0 (82), C
l0(C2).

Circumferences I, A, , L connecting Cl0 (D2), respectively
Afu.

LA is usually the line of the core company. Also basic rules)
Non-core routes including LA and times #1tLA, -LA,
) There may be multiple telephone stations intervening in LB, LC, and LD, but for the sake of simplicity in Figure 4, and because it is not particularly necessary for understanding the telephone line network, the telephone stations are The multi-stage configuration described above is not shown. Furthermore, when the present invention is applied to a telephone, the telephone is connected to the backbone company's line LA.

K is directly coupled.

In the telephone network described above, when the calling party SUB makes a call to the called party SUB, the calling party SUB,
is an outside line capture operation (line L) using the private telephone exchange system PBX.
A), first dial the identification number of the call route to be used, then dial the destination selection number specifying the area of the called party SUB, that is, the area number of the called party SUB , the station number of the central office Cl0 (A2) and the subscription number of the called party SUB must be sent to the line LA. Incidentally, when selecting LA as the call route, it is not necessary to send the identification number of the call route. ``Non-core route'' When selecting LB, LC, or LD, conventionally it was common to send an identification number by dialing, but especially when a private telephone exchange system PBX is installed, the telephone exchange A method has also been put into practical use in which the system is provided with an automatic 1plLca (Least Cost Route) selection function and an identification number is automatically added.

[Problem that the invention seeks to solve]

With the method of dialing the identification number of the call route on the telephone, the dialing operation is complicated and may cause incorrect dialing.In addition, the call charges of each telephone company differ depending on the call time, so it is difficult to make a call. Selecting the lowest cost call route at a given time involves a very troublesome decision. In addition, if the telephone station to which the originating telephone belongs is a so-called NON-ID station, it is necessary to dial the subscriber code in addition to the above identification number, and the number of dialed digits becomes enormous. It becomes virtually impossible to select the core route.

In addition, in telephone exchange systems having the LCR automatic selection function, the LCR automatic selection function is usually capable of selecting LCR line routes for all destinations, and the software for realizing this is a calculation element. It is built using extremely complex programs that include, and is extremely complex and expensive.

In order to solve the above-mentioned problems, the present invention provides a call route selection method that can automatically select a call route using simple means.

[Means for solving problems]

When using telephones or relatively small-scale private telephone exchange systems (e.g. key telephone equipment), the number of destinations for long distance calls is generally limited, and it is not necessary to select a call route for all destinations. There are many.

Focusing on the above, the present invention provides a table in which comparison buttons of destination selection number (city code), call time period, and call route are stored for each required call destination, so that the caller can Compare the dialed number sent from the button when making an outside call with the data stored in the table above, and if the dialed number contains the destination selection number registered in the table above, it corresponds to the destination selection number of the current section. The call route is identified by call time based on the data stored in the area where the call is to be made, and the number for selecting the call route is attached to the dial number sent by the caller and the telephone line is busy. K.

[Effect]

Since the call route can be selected by simply referring to the data stored in the table, the program for selecting the call route is extremely simple.

In addition, because the table only needs to store data for the required call destinations, the memory that makes up the table (
RAM) can also be configured with a relatively small capacity.

[Embodiments of the invention]

Fig. 1 is a block diagram showing an embodiment in which the present invention is implemented in a telephone exchange system, Fig. 2 is a configuration diagram of a table used in the embodiment, and Fig. 3 shows the operation of the embodiment. It is a flowchart.

As shown in FIG. 1, the telephone exchange system according to the embodiment of the present invention includes a line circuit 1, a communication line switch (hereinafter referred to as a switch) 2, an outside line circuit 3, which is supported by a numerical system. In addition to an MPU (microprocessor unit) 4, a dial sender 5, and a clock circuit 6, it has a table 7 that will be explained in detail later. Further, the telephone 8 and the outside line 9 are connected to the line circuit 1 and the outside line circuit 3, respectively, as in the numerical system.0 The table 7 is a memory that stores various data necessary for carrying out the present invention. It is configured using RAM as shown in FIG. 2, for example. In other words, the current bit table is, for example, 8 (
It consists of a RAM area with a capacity of 6 columns (columns) x 6 rows (N is the number of destinations) divided into 6 rows for each destination, and each destination address contains the area number (destination selection call routes used (i.e.,
There is a registration area for your telephone company.

The area code registration area is IcA, - in Figure 2.
As shown by %-A, it is set in the first four bits of the first to third lines of each destination address, and 4 bits are allocated to each digit of the area code, for a total of 5 digits. (A and ~A correspond to the first to fifth digits, respectively.)

The registration area for the convenience call route is the first ground V in Figure #c2.
As shown by CBr ~ Bs, Ct "" Cs and D1 ~ Ds, these are set in the last 3 bits of each line from the 4th line to the 6th line of each destination address, and the time division depends on the call rate structure of each telephone company. Based on the above, the call route is divided into three sections, and the fourth line is the first time zone, the fifth line is the second time zone, and the sixth line is the third time zone. Furthermore, the first
The time period is daytime in the example from 8:00 to 19:00 (however, 19:00 is not included), and the second time period is night time and early morning time in the example from 19:00 to 21:00. The third time zone is set from 6:00 to 8:00 (however, 21:00 and 8:00 are not included), and the third time zone is set from 21:00 to 6:00 (however, 6:00 is not included) in the embodiment.

Also, the 6th bit of each time period (Bl, Bt, Bm)
is the registration area of the call route via the second telephone company, that is, the non-core route (LB) in FIG. 4, and the 7th bit (Cs, Cs, C
s) is the registration area of the call route via the third telephone company, that is, the non-core route (LC) in FIG. 4, and the 8th bit (D+, Dt,
Da) is the registration area of the call route via the fourth telephone company, that is, the non-core route LD in FIG. 4.

Note that the registration area of the core company (core route LA in FIG. 4 above) is not required.

A specific example of data storage at the second destination address in FIG. 2 is shown. In other words, the registered area code for this second destination address is 10425-1, the registered call route in the first time zone is non-core route LB (second telephone company), and the registered call route in the second time zone is 10425-1. (4th telephone company), there is no registered call route in the 3rd time zone (therefore, as explained later, calls in the 3rd time zone go through the core route LA). Data indicating the is stored. Note that "1111" (hexadecimal "F") indicating that no data exists is stored in unused and unregistered areas.

Next, the operation of the embodiment will be explained according to FIG.

When the caller performs a long distance call operation on the telephone 8, the MPU
4 identifies an outside line call via line circuit 1 and captures outside line circuit 3, and also indicates that the outside line call is a long distance call (because the first digit is "0", it accesses table 7 and Specify the first destination address (step a)
).

The dial number sent from the telephone 8 during a long-distance call operation is read into the MPU 4 via the line circuit 1;
compares the dialed number with the toll number registered in A, ~A, in the first destination address of table 7, and determines in step b) that the registered toll number is included in the current dialed number. It is determined whether or not (step c).

In this step C, if it is determined that there is no registered area number in the dialed number sent from the telephone 8, the control flows in the direction of "NO" and the MPU 4 In step d), it is determined whether the specified destination address is the final address or not. In this case, since the specified destination address is the first destination address (the final address is not the Nth destination address), Control is “N
The MPU 4 then specifies the next destination address in the table 70, that is, the second destination address (step e), and repeats the control from step b that was carried out when specifying the first destination address.

When the dialed number sent from the telephone 8 does not include the area number registered in the table 7, the first dial number in the table 7 is used.
The control of step [b −+ c 4 d −+ e→b” is repeated from the destination address to the (N-1)th destination address, and when the Nth destination address is specified, step [b−+c −+ d J, and in step d, the Nth destination address is the final address, so the control flows in the direction of rYE S J, and the MPU4
starts the dial sender 5 and sends the dial number sent from the telephone 8 as is to the dial sender 5 without any modification, and the dial signal from the dial sender 5 with the dial number unchanged is transmitted via the outside line circuit 3. is sent to the outside line 9 (step f).

In the above operation, the call route to the called party is formed by the backbone company's call line as follows.

rsUB, -PBX-LA, -Cl0(Al)-
LA-Cl0(A2)-LA,-8UB,JHowever, 5U
Assume that Bl is the calling party and SUB is the called party.

When the registered toll number in table 7 is included in the dialed number sent from telephone 8, for example, the toll number in the dialed number is the number ro 425J registered in the second destination address in table 7. In this case, in the judgment in step C regarding the second destination address, since the area number ro 425J in the received dialed number matches the number ro 425J registered in the second destination address 1~AsK. , the control flows in the direction of rYEsJ, and then the MPU 4 reads the current time from the clock circuit 6 and identifies the call time zone (step g), in the area corresponding to the identified time zone in the second destination address of the table 7. Read the stored data (step h), and determine whether the data has registration for selecting a non-core route LB, LC, or LD (Fig. 4) (step i)
0 Now, if it is assumed that the call time of the telephone 8 is, for example, the third time zone, the MPU 4, in step h, reads the data stored in the sixth row of the second destination address of the table 7. Read, the 6th address of the second destination address
Since the 6th to 8th pits are ro OOJ, that is, there is no registration for selecting non-core LB, LC, or LD in the third time period, control is disabled in the judgment in step i. The signal flows in the direction of f-NOJ, and control in step f is performed. That is, in the same way as when a long distance call is made using an unregistered long distance number, the call route is formed via the backbone LA.

Further, assuming that the call time of the telephone 8 is, for example, a time belonging to the first time zone, the MPU 4 reads the data stored in the fourth row of the second destination address of the table 7 in step h, Since the 4th line and 6th to 8th pits of the second destination address are rl 00J, that is, the non-core LB selection is registered in the first time period, step i is completed. Based on the judgment, the control flows in the direction of f-YFJSJ, and then the MPU 4 activates the dial sender 5 and selects the selection number of the sickle route to be entered into the dial number sent from the telephone 8, in this case, the non-core route LB. The dial number with the selected number added (the selection number is usually a 4-digit number consisting of rooxxJ and is added to the front of the area number) is sent to the dial sender 5, and the selection number is sent from the dial sender 5 to the selected number. The dial signal corresponding to the dial number with the added number is sent out via the outside line circuit 3,! lIl! 9 (step j).

With the above operations, the call route to the called party is formed using the call line of the non-backbone company (in this case, the second telephone company) for the toll line portion.

That is, to explain using FIG. 4, the non-core route L
Next route rsUB via B, -PBX-C10 (AI) LAn-C1
0(Bl)-LB-C10(B2)-LA, -C10(
A2) -LA, -8UB, J are formed. Here rClo(Bl) -LB-C1
0(B2)J is the equipment of the non-core company (second telephone company), and the others are the equipment of the core company.

In addition, the core company's telephone office Cl0 (Al) is a so-called NON-
If it is an ID station, the number added in step j is the code (/J) required for calling from the NON-ID station.
The number should include the person's code, etc.) From K to N.
The invention can also be implemented in a telephone switching system belonging to an ON-ID station.

In the embodiments described above, the selection of the call route is generally made taking into account the call cost, but the selection is not limited to this (it is an operational issue as to what factors should be used to make the selection setting). )0 Furthermore, although the above embodiment is an example in which the present invention is implemented in a telephone switching system, it is also possible to implement the present invention in a telephone set that is directly connected to a telephone line (external line). In particular, so-called multi-function telephones have M
Since it has a PU, if there is enough memory to use it as a table, it is possible to implement the present invention by simply changing the software.

〔Effect of the invention〕

As explained above in detail, the present invention stores (registers) all data for selecting a non-core route in a table in advance.
(Thus, it is possible to select a call route by simply referring to the table, and the caller can select the most suitable call route (for example, LCR route) by dialing the area number as before. It has the advantage of being free from the need to judge the call route based on call time and the hassle of dialing multiple digits, and the software that makes this possible is extremely simple. The present invention has very remarkable effects, such as the fact that the capacity of the memory used as the table can be relatively small because the destinations to which non-core routes are normally used can be limited.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a diagram explaining the configuration of a table used in the embodiment, Fig. 3 is a flowchart showing the operation of the embodiment, and Fig. 4 is a telephone line network. FIG. (Main symbols) 4,,, MPU (Microprocessor unit)
5...Dial sender 6...Clock circuit 7...Table PBX...Telephone exchange system (private) SU
Bm, SUB, ,,, /Il1 person Cl0(Al
), Cl0(A2)...Telephone office of the core company Cl0(
Bl), Cl0(B2), Cl0(C1), Cl0(C
2). Cl0 (DI), Cl0 (D2)... Telephone office LA of a non-core company... Core route LB, LC, LD... Non-core route. Figure 1 Figure 2 Figure 3

Claims (1)

[Scope of Claims] 1. In a telephone switching system or a telephone set connected to a telephone line network where there are multiple call routes for long-distance calls and the call route to the destination can be selected by the caller, A table is set up that stores comparison data of numbers, call time periods, and call routes for each of the above destination selection numbers, and the data stored in the table is compared with the dialed number sent by the caller when making a long-distance call. However, if the dialed number includes a ground selection number registered in the table above, the registration of the call route is identified by call time zone based on the data stored in the area corresponding to the ground selection number, and the call is made. If a route is registered, the call route selection method adds a number for selecting the registered call route to the dial number sent by the caller and sends it to the telephone line. 2. The call route selection method according to claim 1, wherein the table stores data for selecting the lowest cost call route. 3 The telephone exchange system or telephone station to which the telephone belongs is NON.
- If it is an ID station, add NON-I to the number to be added.
The call route selection method according to claim 1, which includes a code necessary for making a call from station D.