JPH01273476A - Low charge line selection adaptor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is a low-cost line selection adapter (hereinafter referred to as "carrier") that selects the cheapest relay line from among the relay lines of multiple telephone service companies (hereinafter referred to as "carriers"). (referred to as "adapter")
More specifically, from carrier selection information in which multiple carriers are ranked in descending order of price, unavailable carriers are excluded in memory and reorganized, and the reorganized carrier selection information table has the cheapest carrier selection information. Regarding an adapter that allows you to choose a carrier.

(Conventional technology) This type of adapter connects the relay lines of multiple carriers.
It was developed to allow subscribers to select the cheapest trunk line without having to perform any more complicated operations compared to normal calling operations.

Conventionally, only one type of carrier selection information (hereinafter referred to as a table) corresponding to the carrier for which the user has applied has been input to this adapter.

For example, a certain subscriber has carrier A and carrier B.

If you apply for use with four companies, carrier C and carrier d, tables for the four companies are input to the adapter, but only one cheapest carrier is stored as carrier selection information. No information is entered regarding the second cheapest carrier and third cheapest carrier.

FIG. 3 (al is a diagram showing an example of a conventional carrier selection information table.

In the table for four companies of the conventional adapter, only one cheapest carrier is included as carrier selection information. For example, when calling Osaka, carrier b is the cheapest. Therefore, "carrier b" is selected as the line for Osaka.

In this way, the conventional adapter table contains only one cheapest carrier, and the next cheapest carrier is unknown.

Therefore, it is not possible to deal with the case where the carrier on the table becomes unusable.

For example, in the above example, if carrier b's line becomes unavailable due to a breakdown in the exchange, it will not be possible to make a call to Osaka with the current four-company table.

Therefore, when a carrier is unavailable, conventional adapters stop the cheapest carrier selection function and reject all calls.
Connect to a specific line if you do not select a trunk line or
Or tables had to be swapped.

FIG. 3(b) is a diagram showing an example in which the tables are replaced. Calls to Osaka have been changed from carrier B to carrier A.

An example of a carrier being unavailable is a case where the carrier is not yet available.

For example, if the subscriber is carrier a, carrier b, carrier C
and carrier d, and the table for the four companies mentioned above was entered into the adapter, but in reality it has not been registered to carrier b's exchange, and carrier b
Suppose that it is not open yet.

When making a call to Osaka, assume that carrier b is the cheapest.

In this case, when the user makes a call to Osaka, carrier b cannot be selected. Therefore, if the next cheapest carrier after carrier b is known, that carrier can be selected, but in the conventional table, the next cheapest carrier is unknown.

Therefore, as mentioned above, you can stop the cheapest carrier selection function and connect to a specific line when no relay line is selected, or carrier a, carrier C excluding carrier b,
and carrier d, which must be replaced with a table for three companies.

Furthermore, it is conceivable that the status of carrier availability and non-availability differs depending on the line.

Conventional adapters can accommodate multiple lines, but one adapter can only have one table, so if the carrier opening status of the accommodated lines is not the same, the cheapest carrier selection function is stopped, It is necessary to connect to a specific trunk line when no trunk line is selected, or to accommodate the same adapter in the same carrier status.

For example, for lines ■ to ■, only carrier b has not opened, but for lines ■ to [phase], only carrier a has not opened, then for lines ■ to ■, carrier a excluding carrier
A three-company table I consisting of carrier C and carrier d is required, and a three-company table ■ consisting of carrier b excluding carrier a, carrier C and carrier d is required for lines ■ to [phase].

However, since one adapter can only have one type of table, it cannot hold tables I and ■ at the same time. Therefore, either stop the cheapest carrier selection function for all accommodated lines and connect all calls to a specific trunk line when no trunk line is selected, or For example, only carrier b must reaccommodate unopened lines into the same adapter and replace the table in accordance with the opening status with the adapter.

Next, carriers may become unavailable due to switching equipment problems, line congestion, etc.

If a carrier becomes unavailable due to switching equipment trouble, line congestion, etc., all lines accommodated in the adapter will be affected, and that carrier will not be available for all lines.

For example, 3 carriers: carrier a, carrier b, and carrier C.
If you are using an adapter on a company table, use carrier a.
When a problem occurs in the exchange and carrier a's line becomes unavailable, carrier a becomes unavailable for all lines accommodated in the adapter.

For this reason, with conventional adapters, the lowest-cost carrier selection function is stopped and a relay line is connected to a specific relay line when no relay line is selected, or the lowest-cost carrier selection function is
It is necessary to replace the table with one for three companies: Carrier C and Carrier D.

Then, if a carrier that has not yet opened is opened, or if the switchboard trouble or line congestion is resolved, we will either go through the same effort as above and replace the table with one for four carriers, or
Or it is necessary to activate the cheapest carrier selection function.

(Problems to be Solved by the Invention) As described above, with conventional adapters, when there is a carrier that cannot be used, or when a carrier becomes available, it is necessary to take time and effort to replace the table each time, or to I had to disable the low-cost carrier selection function and use an expensive relay line.

The object of the present invention is to solve the above-mentioned drawbacks, and to select the cheapest carrier from among available carriers without requiring table replacement even if there is or becomes an unavailable carrier. Our goal is to provide an adapter that can do this.

(Means for Solving the Problem) In order to achieve the above object, an adapter according to the present invention is a low-cost line selection adapter that selects the cheapest relay line from among the relay lines of a plurality of telephone service companies. A table of carrier selection information ranking the cheapest relay lines of the service company is stored in the storage unit, and the carrier selection information table includes unused carriers, carriers that cannot be used due to switch trouble, line congestion, etc. If there is or occurs, the table is reorganized by excluding unavailable carriers, and line selection is performed based on the reorganized carrier selection information table.

(Example) Hereinafter, the present invention will be explained in more detail with reference to the drawings.

FIG. 1 is a relay system diagram for explaining an embodiment of the adapter according to the present invention.

The adapter 2 is installed between the subscriber terminal 1 and the subscriber exchange 7 on the subscriber terminal side.

Regarding the adapter 2, only the configuration of the portion directly related to the present application is described.

For example, in the storage area 3 of the storage unit 8, the subscriber has carrier a.
1 When applications are made to four carriers, carrier b, carrier C, and carrier d, a table ranking the carriers from the cheapest to the cheapest is stored.

When the subscriber terminal 1 makes a call, the control unit 5 reads the cheapest carrier from the table in the storage area of the storage unit 8, adds an access code if necessary, and controls whether a specific carrier is used on a certain line. If this is not possible, control is performed to reorganize the tables stored in the storage area and store them in the same storage area again.

FIG. 2 is a diagram showing an example of a table stored in the storage area 3 of the storage unit 8.

For example, when making a call to Osaka, use carrier B.

Carrier a, carrier d, and carrier C are cheaper in this order.

When a subscriber applies to carrier A, carrier RO 1, carrier C, and carrier d, the adapter will
For example, a table 10 as shown in Figure 2 ranks the companies.
is input.

At this time, if carrier b is unavailable due to unavailability,
Based on the stored table 1o, the control unit 5 excludes carrier b and performs reorganization according to the ranking. The reorganized table becomes table 11 in which carrier a, carrier C, and carrier d are ranked. The cheapest carrier is selected using this table 11.

The above reorganization is performed for each line. For example, if only carrier b is open for line ■, and only carrier a is open for line ■, carrier a will be used for line ■.

The table in which three companies, carrier C and carrier d, are ranked, and the three companies, carrier b, carrier C, and carrier d, are rearranged for line (■) is reorganized.

As a result, carrier a is selected for line ■, and carrier b is selected for line ■.

In this way, even if the carrier opening status differs depending on the line, it can be handled using one table 10.

Even when an unopened carrier becomes available for use, the table 10 can be used without replacing the table.

Next, after inputting table 10, if carrier b's line becomes unusable due to switching equipment trouble, line congestion, etc., the control unit 5 will make the line of carrier b unusable for all accommodated lines, so All accommodated lines are reorganized according to the previous ranking, excluding carrier b. As a result, the table in which three carriers, carrier a, carrier C, and carrier d are ranked, is reorganized in the storage unit. For example, when making a call to Osaka, the cheapest carrier among the three carriers is a is selected.

Even when carrier b's switching equipment is restored, table 10 can be used without replacing the table.

(Effects of the Invention) As explained above, the present invention has a table of carrier selection information that ranks multiple carriers in descending order of price, and even if the carrier opening status differs for each line, It has the feature of reorganizing the table according to the opening status and selecting the cheapest line from among the available lines in the reorganized table.

In addition, even if there is an unused line, or even if it is opened, or even if the line becomes unusable due to switching equipment trouble, line overload, etc., or even if it is restored and becomes usable, Since there is only one type of table and there is no need to frequently replace it, it has the effect of reducing the effort involved in changing between carrier availability and availability.

[Brief explanation of the drawing]

FIG. 1 is a relay system diagram showing an embodiment of the low-cost line selection adapter according to the present invention, FIG. 2 is a diagram showing an example of carrier selection information stored in the storage section of FIG. 1, and FIG. FIG. 2 is a diagram showing an example of carrier selection information used in a conventional low-cost line selection adapter. 1... Subscription terminal 2... Low rate line selection adapter 3... Record f and El area of carrier selection information table 5
...Control unit 6...Subscriber line 7...Subscriber exchange 8...Storage unit Patent applicant Daini Denden Co., Ltd. Agent Patent attorney Inoro Jusai Figure 3 (a) (b)

Claims (1)

[Claims] In a low-cost line selection adapter that selects the cheapest relay line from among the relay lines of multiple telephone service companies, a table of carrier selection information that ranks the cheapest relay lines from among the relay lines of multiple telephone service companies is displayed. If there is a carrier in the carrier selection information table that cannot be used due to unopened carriers, switching equipment trouble, line congestion, etc., or if it occurs, the unusable carrier is excluded. A low-cost line selection adapter characterized in that the table is reorganized and line selection is performed based on the reorganized carrier selection information table.