JPH01183950A - Speaking route designating system - Google Patents

Abstract

PURPOSE:To make unnecessary an exclusive button for LCR selection by designating a special speaking route by means of the sequence difference of the pushing operation of the selected button and a dialing operation, or designating an LCR selected with an LCR automatic selecting function. CONSTITUTION:When the dialing operation is first carried out, the speaking route by the LCR selection is designated, and when the line wire button pushing is first carried out, the special speaking route is designated. When transmitting numbers are first dialed by a telephone set TELA, a central processing unit 1 reads dial data from the telephone set TELA through a control line l1, and waits for the pushing of the line wire button. When the line wire button is pushed by the telephone set TELA, the central processing unit 1 selects and catches a line wire trunk 5 corresponding to the pushed line wire button or the free line wire trunk 5, accesses an LCR identifying part 3, and the LCR at such a time is identified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a call route designation method implemented in a telephone equipped with an outside line selection button, such as a so-called button telephone, or a telephone exchange system that accommodates the telephone. .

(Prior Art) In recent years, a system of multiple telephone companies has been established in Japan, and a caller can now make a call by selecting one of the long distance lines owned by each of the multiple companies.

When a caller selects a long-distance call route, the caller will generally choose the route with the lowest call charge, but call charges vary depending on the telephone company, destination, call time, etc. Therefore, it is difficult for the caller himself to identify the long-distance route with the lowest call cost at the time of call each time he makes a call. In addition to the dial number required when using the core company's long-distance line,
It is necessary to dial the subscriber's personal identification code, the access code for the non-core company's long-distance line, etc., making the dialing operation very troublesome. The core company here refers to the telephone company (Nippon Telegraph and Telephone Corporation) that owns local and long-distance lines that are directly connected to the university, and the non-core company refers to telephone companies that own only long-distance lines. Refers to companies (Daini Denden Co., Ltd., Japan Telecom Co., Ltd., Japan High Speed Communication Co., Ltd., etc.).

In view of the above, especially in business establishments that use private telephone switching systems such as private branch exchanges and key telephones, it is recommended that the private telephone switching system has a so-called LCR automatic selection function (Least Cost Route). When a long-distance call is made from an extension telephone (the caller dials the normal long-distance number (the number used when using the core company's call route)), the private telephone switching system The lowest call cost route (hereinafter referred to as LCR) at that time is selected, and when a non-core company call route is selected, an additional number (to the non-core company call route) is added to the toll number. A dialing signal with an access code, subscriber's personal identification code, etc.) is sent to the telephone line, and when a call route to the core company is selected, a dialing signal of an area number is sent to the telephone line.

[Problem to be solved by the invention]

According to the above-mentioned conventional technology, since the LCR automatic selection function is always functioning in the private telephone exchange system, the LCR is always selected regardless of the caller's intention.

Therefore, when you wish to receive services provided only by the core company's long-distance route from an extension of a private exchange system, such as a local weather forecast service or a local directory assistance service, the non-core company's If a call route is specified, the above service will no longer be available.

In addition, if one of the long distance call routes becomes unavailable due to line failure, etc., the long distance call route becomes L
When specified by CR selection, long distance calls are disabled.

In order to solve the above problems, there is a conventional system in which a telephone is equipped with an LCR automatic selection function button, but such a system not only increases the cost of the telephone, but also increases the LCR automatic selection function button.
The number of operating steps required for out-of-town departures using 8 becomes one more step, making the operation that much more troublesome.

The present invention is proposed to solve the above-mentioned conventional problems.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a so-called button telephone with an outside line selection button that specifies a specific call route or The LCR selected by the LCR automatic selection function is specified.

(Function) Since the caller can decide whether to use a specific call route or to use LCR, it becomes possible to receive services that can only be received through the above-mentioned specific call route, and in LCR Even if there is a line failure, you can still make a call using the above-mentioned specific call route.In addition, there is no need for a dedicated button for LCR selection on the phone, and the operation is easy. Moreover, telephones can be provided at low cost.

(Embodiment) FIG. 1 is a flowchart showing control of an embodiment of the present invention.
FIG. 2 is a block diagram of an embodiment of the invention.

As shown in Figure 2, the subscriber telephone line network includes line networks N11 and N12 owned by the backbone company to which subscribers are directly connected, and a toll line network owned by the backbone company that connects line networks N11 and N12. It is constructed from N21 and a long-distance line network N22 owned by a non-core company. In the future, the line network N1. to which subscribers are directly connected will be used. ．． Although there is a possibility that there are multiple companies for Nlz, in the explanation of the embodiment, the line network N1. ,
It is assumed that N12 is exclusively owned by the core company.

In addition, the above line network N1. , N12 is the local line network of the core company (subscriber's station and POI (Point of Interest)
f Interface) station is located in the same city)
There are cases where it is a toll network (when the subscriber's station and the POI station are not in the same city). .

It is assumed that N12 is a local line network.

The embodiment described in FIGS. 1 and 2 is an example in which the present invention is implemented in a button telephone device.

The hardware configuration of the button telephone device is similar to that of a conventional one having an LCR function, and among the various components, in particular, a central processing unit 11 a communication path switch (hereinafter referred to as a switch) 2 LCR identification section 3 ．． Dial sender 4.
The outside line trunk 5 and the like are involved when implementing the present invention.

Although one or more outside line trunks 5 are provided, one trunk is representatively shown in FIG. 2.

Further, the telephone equipment A housed in the button telephone device is a so-called button telephone, and in addition to each device (dial, handset, telephone network, incoming call indicator, hook switch, etc.) that a normal telephone has, one or more telephone equipment A is housed in the button telephone device. When the outside line button is pressed, the outside line trunk 5 corresponding to the pressed outside line button is captured, or when the outside line button is pressed, an empty outside line trunk 5 is automatically identified and captured. It has become so.

The operation of the embodiment of the present invention will be explained below.

In the following explanation, the expression "step ( )" indicates each control step of the processing flow shown in FIG. 1, and the numbers in parentheses indicate the symbols in FIG. 1.

When telephone operator A of a button telephone device calls a subscriber outside the area (telephone operator, The distinction from the case in which the caller specifies the route via the outside line network N21 is determined by the order in which the caller performs the dialing operation of the destination number on the telephone equipment A and the pressing of the outside line button. In the embodiment, when the dial operation comes first, a call route is specified by selecting LCRJ, and when the outside line button is pressed first, a specific call route is specified. When the caller makes a long-distance call, the dialing operation of the destination number is always a normal long-distance number (a number in the same format as when making a long-distance call via the backbone company's long-distance network N21), that is, " All you have to do is dial a number consisting of 10 area numbers, 10 area numbers, and 10 accession numbers.

In step (1), when the telephone operator ^ dials the calling number (for example, the number of telephone operator B) first, the central processing unit 1 reads the dialing data from telephone operator A via the control line J21. At the same time, it is determined in step (2) that the dial operation has been performed, and step (
3) Waits for the outside line button to be pressed.

When the telephone operator presses the outside line button, the central processing unit 1 issues f! The outside line button press data from telephone operator A is read through the IJ control line 11, and the outside line trunk 5 corresponding to the pressed outside line button is read through the control line IL2 (when the outside line button corresponds individually to the outside line line). ) or by selecting and capturing a vacant outside line trunk 5 (when the outside line button is a so-called fixed line type outside line button), and at the same time, in step (4), the LCR
The identification unit 3 is accessed and the LCR at that time is identified. It should be noted that if the outside line button is not pressed in step (3) above, an extension call is made within the button telephone device, but the extension call is not directly related to the present invention, so a description thereof will be omitted. Further, the LCR identification control in step (4) may be carried out by any suitable method that has been proposed (for example, the method previously proposed by the applicant in Japanese Patent Application No. 6'2-271360). A description of the LCR discrimination control itself will be omitted.

Next, for the LCR identified in step (4) above, the central processing unit 1
Determine whether the CR is a core company route or a non-core company route, and if it is a non-core company route, enter various codes necessary for long distance calls via the non-core company route in step (6). Added to the destination number dialed by worker A.

Here, the various codes mentioned above refer to the station to which the outgoing outside line L1 belongs (
An ID station (a telephone office of the core company located within the local line network Nli that accommodates the outgoing outside line L1) has the function of automatically transmitting the subscriber's PIN code to the non-core company long-distance line N22. station), the access code (code for accessing the non-core company's toll network N22 determined for each non-core company) must be sent to the outgoing outside line, if the station to which it belongs is an NID station (the above-mentioned PIN code). In the case of a telephone office that does not have an automatic code sending function, this refers to the subscriber's personal identification code and the above-mentioned access code. In addition, the key telephone device has an outgoing outside line L.
Although the present invention has a function of determining whether a station to which one belongs is an ID station or an NID station and automatically determining the code to be added, this function itself is not directly related to the present invention, so its explanation will be omitted.

After various codes are added to the destination number as described above, in step (7), the central processing unit 1 activates the dial sender 4 and sends "various codes" via the control line f12 and the outside line trunk 5. A dial signal consisting of "code + destination number" is sent to the outgoing outside line L1. As a result, in the subscriber telephone line network, "outgoing outside line L1 - local line network N1
1-Non-core company long-distance line network N22-Local line network N12-
The call route for the called side external line L2J is completed, and the telephone "rE"
t and a are called. This means that telephone engineer A and telephone engineer B are connected via the non-core company long distance line network N22.

If the LCR identified in step (4) is a core company route, control proceeds to step (8) in step (5), and the central processing unit 1 activates the dial sender 4. , a dial signal consisting only of the destination number is sent to the outgoing outside line L1 via the control line A1 and the outside line trunk 5. As a result, in the subscriber telephone line network, the call route of "outgoing outside line L1 - local line network Nl! - backbone company toll line network N2□ - local line network N12 - called side outside line L2" is completed, This means that the telephone engineer ^ and the telephone "rEt,e" are connected via the core company's toll network N21.

Further, in step (1), when the telephone operator A presses the outside line button first, the central processing unit 1 proceeds to step (9) in step (2), and the central processing unit 1 In step (9), the unit 1 receives the destination number (e.g., special number service device TK: here, the special number service device TK refers to a device provided by the core company, such as a weather forecast service, directory assistance service, etc.). ) is dialed.

When the destination number is dialed by the telephone operator A, the central processing unit 1 reads the dial data via the control line 11, and in step (8) sends it to the dial sender (4).
, and sends a dial signal consisting only of the destination number to the outgoing outside line L1 in the same manner as above. As a result, in the same manner as when proceeding from step (5) to step (8) above, telephone engineer A and special number service device TK communicate with core company long-distance line #! This means that the connection is made via N21.

In this way, when the outside line button is pressed before the dialing operation, LCR identification is not performed and the predetermined specific call route, in this case, the backbone company's long-distance network N2.
1 is designated as the only root.

Further, the correspondence between the previously performed operation (dial operation or pressing of the outside line button) and the designation of the call route may be reversed from that of the above embodiment. That is, a method may be adopted in which a specific call route is specified when the dial operation is performed first, and a call route selected by LCR identification is specified when the outside line button is pressed first. However, if you do this,
When using a call route based on LCR identification,
It is necessary to capture the outside line trunk 5 by pressing the outside line button, set the outside line L1 to the outgoing state, wait for the dialing operation at the telephone operator A, and identify the LCR.
It takes a long time to send a dialing signal for the destination number after the call is made, and during this time, from the perspective of the local line network N11, the switching system of the central office is disabled. This method is a better method.

In addition, in the above embodiment, if the caller wants to specify a call route via a specific non-core company, after pressing the outside line button, the caller himself or herself can use the dial operation of the telephone operator A to specify the call route via a specific non-core company. An additional code (access code or access code and subscriber PIN code) necessary for specifying a call route via the company may be sent.

Furthermore, in the future, there is a possibility that the local line network will also consist of multiple companies, and in this case, it goes without saying that the present invention can be implemented for the local line network as well.

[Effects of the Invention] As described above in detail, the present invention specifies a specific call route based on the difference in the order of dialing on the calling telephone and pressing the outside line button, or selects a specific call route based on LCR identification. This system allows users to specify the LCR, and even in telephone exchange systems equipped with an automatic LCR selection function, services provided by specific telephone companies can be received. The present invention has remarkable effects, such as making it easier to deal with the occurrence of an impossible route.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing control of an embodiment of the present invention;
FIG. 2 is a block diagram of an embodiment of the invention. Place A... Telephone (telephone with outside line button) 1... Central processing unit 3... LCR identification section N21... Core company long-distance line network N22... Non-core company long-distance line network

Claims (1)

[Claims] A telephone set with an outside line selection button or a telephone set connected to a telephone line network in which there are multiple call routes and the call route to the destination can be selected by different dial numbers sent from the caller. In a telephone switching system, a specific call route is designated from among the plurality of call routes based on a difference in the order of the dialing operation on the telephone and the pressing operation of the outside line selection button, or
Alternatively, a call route specification method that selects and specifies the call route with the lowest call cost.