JPH098958A - Network selection device - Google Patents

Abstract

PURPOSE: To obtain a network selection device in which a quantity of use for each network is uniformalized among plural 1st class electric communication enterprise line networks. CONSTITUTION: A private branch of an exchange is provided with a memory storing plural dial conversion tables TB1-TBn storing conversion dial strings formed by adding a number string designating each 1st class electric communication enterprise line network to each toll station number of a public line network for each 1st class electric communication enterprise line network and with a control means selecting optionally a line network from the plural 1st class electric communication enterprise line networks based on the dial conversion tables stored in the memory for each prescribed period (for each day), converting each toll station number of the public line network into a conversion dial string and providing an output of the converted dial string to the public line network.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a private branch exchange (hereinafter,
The present invention relates to a network selection device for making the usage of each network constant during a certain fixed period when a plurality of networks are connected to PBX) via an NTT line.

[0002]

2. Description of the Related Art FIG. 9 is a block diagram of a minimum charging route selection system disclosed in, for example, Japanese Patent Laid-Open No. 2-94755. In FIG. 9, 1 is a telephone housed in a PBX, 2 is an extension interface circuit, 3 is a switch, 4 is a trunk line trunk, 5 is a processor, 6 is memory, and 7 is a switchboard of Nippon Telegraph and Telephone Corporation (NTT) line. (Hereinafter, referred to as an NTT exchange), 8 and 9 are first type carrier (NCC) line exchanges (hereinafter referred to as NCC exchanges).

Next, the operation will be described. When a destination dial string connected to a general NTT line is input from the telephone 1 accommodated in the PBX, the dial string is first stored in the memory 6 via the line interface 2, the switch 3 and the processor 5. At that time, the processor 5 calculates which NCC line to use for out-of-town to the dial train accumulated in the memory 6 is the minimum charge, and specifies the NCC line of the route having the minimum charge. The additional number sequence to be added is added to the head of the NTT dial number, and the dial sequence is transmitted from the office line trunk 4 to the NTT exchange 7,
The T switch 7 connects to the designated NCC switch 8 or 9.

[0004]

Since the conventional minimum charging route selection system is constructed as described above, the NCC to be used is constructed because the call charge is minimized.
There was a case that the exchange network was biased.

The present invention has been made in view of the above points, and an object thereof is to obtain a network selection device capable of making uniform the amount of use of each network among a plurality of type 1 telecommunication carrier network networks. And

[0006]

A network selection device according to the present invention is an arbitrary line network among a plurality of first-class telecommunications carrier line networks connected to a private branch exchange via a conventional public line network. In the network selection device for selecting and connecting the line, a conversion dial string in the private branch exchange to which a number string designating the type 1 telecommunications carrier line network is added for each area code of the public line network Of the public line network by sequentially switching and selecting an arbitrary line network from a plurality of type 1 telecommunications carrier line networks based on the memory storing the information of the above and the information stored in the memory at regular intervals. And a control means for converting the station number into a corresponding conversion dial string and outputting it to the public line network.

Further, the above-mentioned memory stores a dial conversion table storing a conversion dial string added with a number string designating the same type 1 telecommunication carrier line network for each area code of the public line network. A plurality of types are stored for each type of telecommunications carrier network, and the control means sequentially switches and selects different dial conversion tables stored in the memory at fixed intervals to correspond to each area code of the public network. It is characterized in that it is converted into a conversion dial string and outputted to the public line network.

Further, the control means sequentially switches and selects different dial conversion tables stored in the memory for each day, converts each area code of the public line network into a corresponding conversion dial string and outputs it to the public line network. It is characterized by doing.

Further, the control means sequentially selects and selects different dial conversion tables stored in the memory for each unit time, converts each area code of the public line network into a corresponding conversion dial string, and converts it into a public line network. It is characterized by outputting to.

Further, the memory registers a schedule in which the switching times of the dial conversion table for one day are stored in advance, and the control means stores different dial conversion tables stored in the memory according to the schedule. Is sequentially switched and selected to convert each area code of the public line network into a corresponding conversion dial string and output to the public line network.

Further, the memory stores a schedule in which the switching time of one day of the dial conversion table is stored in advance for each day of the week and for a total of eight days in advance, and the control means registers each day of the week or holidays. Different dial conversion tables stored in the memory are sequentially switched and selected according to a corresponding schedule, each area code of the public line network is converted into a corresponding conversion dial string, and output to the public line network. Is.

Further, the memory stores a plurality of conversion sources storing conversion dial strings to which a number string designating a plurality of type 1 telecommunication carrier networks connectable for each area code of the public network is stored. The control means is provided with a data table, and the control means sequentially reads out a conversion dial string designating a different type 1 telecommunications carrier line network from each conversion source data table in the memory at regular intervals, and the public line network A dial conversion table is created in which the conversion dial strings that specify the same type 1 telecommunications carrier line network for each area code are associated and stored in the memory, and stored in the dial conversion table at regular intervals. It is characterized in that each area code of the public line network is converted into a corresponding conversion dial string on the basis of the contents and output to the public line network.

Further, the control means sequentially reads out a conversion dial string designating different first type telecommunications carrier line networks from each conversion source data table in the memory for each day, and for each area code of the public line network. A dial conversion table that corresponds to the conversion dial string that specifies the same type 1 telecommunications carrier network, and stores it in the memory.
It is characterized in that each area code of the public line network is converted into a corresponding conversion dial sequence based on the contents stored in the dial conversion table for each day and is output to the public line network.

Further, the control means sequentially reads out a conversion dial string designating a different type 1 telecommunications carrier line network from each conversion source data table in the memory for each unit time, and repeats each suburban area of the public line network. The contents stored in the dial conversion table for each unit time by creating a dial conversion table in which the conversion dial string designating the same type 1 telecommunications carrier line network for each station number is stored and stored in the memory. Based on the above, each area code of the public line network is converted into a corresponding conversion dial string and output to the public line network.

[0015]

In the network selecting device according to the present invention, the information of the conversion dial string to which the number string designating the first type telecommunication carrier line network is added for each area code of the public line network is provided in the private branch exchange. Corresponds to each area code of the public line network by sequentially switching and selecting an arbitrary line network from a plurality of type 1 telecommunications carrier line networks based on the stored memory and the information stored in the memory at regular intervals By including the control means for converting into the conversion dial string and outputting to the public line network, it is possible to make the amount of use of each network in the plurality of first type telecommunication carrier line networks uniform.

Further, a dial conversion table storing a conversion dial string in which a number string designating the same type 1 telecommunications carrier line network is added to each of the area codes of the public line network is stored in the memory. A plurality of types are stored for each type telecommunications carrier's network, and the control means sequentially switches and selects different dial conversion tables stored in the memory for a certain period of time, and a conversion dial corresponding to each area code of the public line network. By converting to a column and outputting to the public line network, different dial conversion tables are sequentially switched and selected at fixed intervals, and the usage amount of each network in the plurality of type 1 telecommunications carrier line networks is made uniform. be able to.

The control means sequentially selects different dial conversion tables stored in the memory for each day, converts each area code of the public line network into a corresponding conversion dial string, and outputs it to the public line network. By doing this, you can select different dial conversion tables for each day,
It is possible to equalize the usage of each network in the plurality of first-class telecommunications carrier network.

The control means sequentially selects and selects different dial conversion tables stored in the memory for each unit time, converts each area code of the public line network into a corresponding conversion dial string, and converts the dial numbers into a public line network. , The dial conversion tables different for each unit time can be sequentially switched and selected, and the usage amount of each network in the plurality of type 1 telecommunication carrier network can be made uniform.

Further, a schedule in which the daily switching time of the dial conversion table is stored in advance is registered in the memory, and the control means stores different dial conversion tables stored in the memory according to the schedule. Are sequentially switched and selected, and each area code of the public line network is converted into a corresponding conversion dial string and output to the public line network, so that different dial conversion tables are sequentially switched and selected according to a schedule, and a plurality of first type It is possible to make the usage of each network in the telecommunications carrier network uniform.

In addition, a schedule is stored in advance in the memory for switching the day of the dial conversion table for each day of the week and holidays for a total of eight days, and the control means causes each day or holiday to be stored. Different dial conversion tables stored in the memory are sequentially switched and selected according to the corresponding schedule, each area code of the public line network is converted into the corresponding conversion dial string, and output to the public line network to output each day or day of the week. Different dial conversion tables can be sequentially switched and selected according to a schedule corresponding to a holiday, and the usage amount of each network in the plurality of first type telecommunication carrier network can be made uniform.

Further, a plurality of conversion sources in which a conversion dial string to which a number string designating a plurality of type 1 telecommunications carrier line networks connectable to each area code of the public line network is added is stored in the memory. A data table is provided, and the control means sequentially reads out a conversion dial string designating a different type 1 telecommunications carrier line network from each conversion source data table in the memory at regular intervals, and the public line network A dial conversion table is created in which the conversion dial strings that specify the same type 1 telecommunications carrier line network for each area code are associated and stored in the memory, and stored in the dial conversion table at regular intervals. By converting each area code of the public line network to the corresponding conversion dial string and outputting it to the public line network based on the contents, The conversion dial string that specifies the first type telecommunications carrier line network is sequentially read, and the dial conversion table that specifies the same first type telecommunications carrier line network for each area code of the public line network is created. Create different dial conversion tables for each fixed period,
It is possible to equalize the usage of each network in the plurality of first-class telecommunications carrier network.

Further, the control means sequentially reads out the conversion dial strings designating different first type telecommunication carrier line networks from the respective conversion source data tables in the memory for each day, and for each area code of the public line network. A dial conversion table corresponding to the conversion dial strings designating the same type 1 telecommunications carrier's network is created and stored in the above memory, and the public conversion is performed on a daily basis based on the contents stored in the dial conversion table. By converting each area code of the line network into a corresponding conversion dial string and outputting it to the public line network, different dial conversion tables are created for each day based on the conversion source data table. It is possible to make the usage of each network in the telecommunications carrier network uniform.

Further, the control means sequentially reads out the conversion dial strings designating different first type telecommunications carrier line networks from the respective conversion source data tables in the memory for each unit time, and then the respective suburbs of the public line network. The same first for each station number
A dial conversion table corresponding to a conversion dial string designating a type telecommunications carrier network is created and stored in the memory, and a public network based on the contents stored in the dial conversion table is stored for each unit time. By converting each area code into a corresponding conversion dial string and outputting it to the public line network, different dial conversion tables are created sequentially for each unit time based on the conversion source data table,
It is possible to equalize the usage of each network in the plurality of first-class telecommunications carrier network.

[0024]

【Example】

Embodiment 1 FIG. Hereinafter, description will be given based on illustrated embodiments of the present invention. FIG. 1 is a block diagram showing a network selection device according to the first embodiment. In FIG. 1, the same parts as those of the conventional example shown in FIG.
Reference numeral 2 is an extension interface circuit, 3 is a switch, 4 is a trunk line trunk, 7 is a switch for NTT (NTT) line (hereinafter referred to as NTT switch), 8 and 9 are first-class telecommunications carriers ( NCC) line switch (hereinafter NCC)
It is called an exchange). Also, as a new code, 10
Is a memory that stores an operation program of a processor and a plurality of dial conversion tables, which will be described later. Reference numeral 11 refers to a plurality of dial conversion tables that are stored according to the operation programs stored in the memory 10, and at fixed intervals. 1 shows a processor as a control means for uniformly controlling the usage of each network among a plurality of first-class telecommunication carrier networks. The PBX accommodates the telephone 1, the extension interface circuit 2, the switch 3, the office trunk 4, the memory 10 and the processor 11.

Here, the memory 10 stores a plurality of dial conversion tables TB1 to TBn as shown in FIG. 2, and the structure of each dial conversion table is as follows.
A conversion dial string to which a number string designating an NCC line is added for each area code is recorded. For example, “00aa011” is stored in the dial conversion table TB1 as a conversion dial string for the area code “011”.

Further, as shown in FIG. 3, the processor 11 sequentially uses any one of the plurality of dial conversion tables TB1 to TBn shown in FIG. 2 for every fixed period, that is, every day. , The amount of use of the switching network is controlled uniformly.

Next, the operation of the above configuration will be described. First, a plurality of dial conversion tables TB1 to TBn shown in FIG. 2 are registered in advance in the memory 6 of the PBX.
In this state, the general N from the telephone 1 accommodated in the PBX
If you enter the destination dial string connected to the TT line,
First, the dial string is input to the line interface 2, the switch 3 and the processor 11. Processor 11
As shown in FIG. 3, on the first day, the dial conversion table TB1 having the contents shown in FIG. 2 is selected, and the area code at the beginning of the input dial string is added to the number string designating the NCC line. Convert to the converted dial string.

[0028] For example, when the user calls "011" from the telephone 1.
When dialing, the processor 11 refers to the conversion table TB1 accumulated in the memory 10 and converts the dial string into “00aa011”. In this way, the dial sequence of the area code is converted and transmitted to the NTT exchange 7 via the switch 3 and the office line trunk 4, and the NTT exchange 7
The connection is made to the NCC exchange 8 or 9 designated in.

Similarly, when the processor 11 detects the day change, on the second day, the dial conversion table is set to TB1.
To TB2, for example, when the user dials "011" from the telephone 1, the processor 11 refers to the dial conversion table TB2 stored in the memory 10, converts the dial string to "00bb011", and Send a line of dials from the line trunk 4 to the NTT exchange 7,
Connection is made to the NCC exchange 8 or 9 designated by the NTT exchange 7. In this way, by sequentially switching to a different dial conversion table for each day, it is possible to equalize the usage amount of each of the plurality of type 1 telecommunications carrier network.

Example 2. Next, FIG. 4 illustrates a network selection device according to the second embodiment, and is a diagram illustrating switching control of a dial conversion table. The network selection device according to the second embodiment has the same configuration as that of the first embodiment shown in FIG. 1, but here, the processor 11 actually uses the plurality of dial conversion tables for conversion. The table is controlled so as to be switched every unit time t.

The operation according to the second embodiment will be described with reference to the dial conversion table switching control diagram shown in FIG. First, a plurality of dial conversion tables TB1 to TBn shown in FIG. 2 are registered in advance in the memory 10 of the PBX. In this state, the processor 11 is
For the time until t, the dial conversion table TB1 is used as the dial conversion table. At this time, when the user inputs the destination dial string from the telephone 1 and dials "011" as the area code, the processor 11 causes the dial conversion table TB1 stored in the memory 10 to be stored.
And convert the dial string to "00aa011",
The dial line is transmitted from the central office trunk 4 to the NTT exchange 7, and the NCC exchange 8 designated by the NTT exchange 7 is sent.
Or connect to 9.

Next, when the processor 11 detects that t hours have passed since the beginning of using the dial conversion table TB1, it changes the dial conversion table from TB1 to T.
Switch to B2. After that, the user selects "01
When dialing "1", the processor 11 causes the memory 10
The dial string is converted to "00bb011" by referring to the dial conversion table TB2 stored in the dial conversion table TB2, the dial string is transmitted from the office line trunk 4 to the NTT switch 7, and is sent to the NCC switch 8 or 9 designated by the NTT switch 7. Make a connection.

After that, similarly, each time the time t elapses, different dial conversion tables are sequentially switched and selected, so that the usage amount of each network among the plurality of first type telecommunication carrier network is equalized. be able to.

Example 3. Next, FIG. 5 illustrates a network selection device according to a third embodiment, and is a diagram illustrating switching control of a dial conversion table. The configuration of the network selection device according to the third embodiment also has the same configuration as that of the first embodiment shown in FIG. 1, but here, the memory 10 stores one day of the dial conversion table as shown in FIG. The schedule that stores the switching time of the
1 controls to switch the table actually used for conversion among the plurality of dial conversion tables according to the schedule.

The operation according to the third embodiment will be described with reference to the dial conversion table switching control diagram shown in FIG. First, a plurality of dial conversion tables TB1 to TBn shown in FIG. 2 are registered in advance in the memory 10 of the PBX. Further, as shown in FIG. 5, a schedule S in which the daily switching time of the dial conversion table is stored in advance is registered in advance. In addition, in FIG. 5, 0 to t1, t1
The time intervals of t2, t2, t2, ... Are different.

In this state, the processor 11 follows the schedule S for the first time from 0 to t1.
Dial conversion table TB as a dial conversion table
Use 1. At this time, when the user inputs the other party's dial string from the telephone 1 and dials "011" as the area code, the processor 11 refers to the dial conversion table TB1 stored in the memory 10 and dials. The line is converted to "00aa011", the dial line is transmitted from the office line trunk 4 to the NTT exchange 7, and the NCC exchange 8 or 9 designated by the NTT exchange 7 is connected.

Next, the processor 11 switches the dial conversion table from TB1 to TB2 during the period from t1 to t2. At this time, when the user dials "011" from the telephone 1, the processor 11 refers to the dial conversion table TB2 stored in the memory 10 and converts the dial string into "00bb011", and then the trunk line 4 to NTT. Send a dial string to the exchange 7 and the NTT exchange 7
The connection is made to the NCC exchange 8 or 9 designated in.

In the same manner, each time of the plurality of first-class telecommunication carrier line networks is used by sequentially switching and selecting different dial conversion tables every time the time elapses according to the schedule of the day. The amount can be even.

Embodiment 4 FIG. Next, FIG. 6 illustrates a network selection device according to a fourth embodiment, and is a diagram illustrating switching control of a dial conversion table. The configuration of the network selection device according to the fourth embodiment also has the same configuration as the configuration of the first embodiment shown in FIG. 1, but here, the memory 10 stores one day of the dial conversion table as shown in FIG. Schedules S1 and S are stored for each day of the week and holidays for eight days in total.
2, ..., S8 are registered in advance, and the processor 1
1 controls to switch the table actually used for conversion among the plurality of dial conversion tables according to a schedule corresponding to each day of the week and holidays.

The operation according to the fourth embodiment will be described with reference to the dial conversion table switching control diagram shown in FIG. First, a plurality of dial conversion tables TB1 to TBn shown in FIG. 2 are registered in advance in the memory 10 of the PBX. Further, similarly, as shown in FIG. 6, in the memory 10, similarly, the schedules S1, S2, ...
., S8 is registered in advance. In FIG. 6, the time interval at which the dial conversion table is switched is different for each schedule.

In this state, the processor 11 determines the day of the week and whether it is a weekday or a holiday, and determines the schedule Sq (q = 1, 2, ..., 8) to be used. For example, when the schedule S1 is determined, the schedule S
According to 1, the dial conversion table TB1 is used as the dial conversion table from 0:00 to t1. At this time, when the user inputs the other party's dial string from the telephone 1 and dials "011" as the area code, the processor 11 refers to the dial conversion table TB1 stored in the memory 10 and dials. Set the column to "00
aa011 ”, and the dial line is transmitted from the office line trunk 4 to the NTT exchange 7 to connect to the NCC exchange 8 or 9 designated by the NTT exchange 7.

Next, the processor 11 switches the dial conversion table from TB1 to TB2 during the period from t1 to t2. At this time, when the user dials "011" from the telephone 1, the processor 11 refers to the dial conversion table TB2 stored in the memory 10 and converts the dial string into "00bb011", and then the trunk line 4 to NTT. Send a dial string to the exchange 7 and the NTT exchange 7
The connection is made to the NCC exchange 8 or 9 designated in. After that, similarly, each time a time elapses according to the daily schedule S1, different dial conversion tables are sequentially switched and selected.

Further, the day changes, and the schedule Sq (q =
1, 2, ..., 8) are decided. For example, schedule S
When 2 is determined, the same operation as described above is performed according to the schedule S2, and different dial conversion tables are sequentially switched and selected each time a time elapses according to the schedule S2. In this way, by sequentially switching and selecting different dial conversion tables as time passes according to the schedule corresponding to each day of the week and holidays,
It is possible to equalize the usage of each of the plurality of first-class telecommunication carrier networks.

Example 5. Next, FIG. 7 illustrates a network selection device according to a fifth embodiment, and is a diagram showing dial conversion table switching control. The configuration of the network selection device according to the fifth embodiment also has the same configuration as that of the first embodiment shown in FIG. 1, but here, the memory 10 has a configuration shown in FIG.
, A plurality of conversion source data tables MT1 storing conversion dial strings to which a number string designating a plurality of type 1 telecommunications carrier line networks that can be connected for each area code of the public line network are stored, MT2, ..., MTr are registered in advance, and the processor 11 specifies a different type 1 telecommunications carrier network from each conversion source data table in the memory 10 at regular intervals, that is, on a daily basis. The conversion dial string is sequentially read, and a dial conversion table TB shown in FIG. 7B is created in which the same conversion dial string designating the same type 1 telecommunications carrier line network is associated with each area code of the public line network. Then, each area code of the public line network is converted into a corresponding conversion dial string based on the contents stored in the memory 10 and stored in the dial conversion table TB at regular intervals (every day). And to output the public network Te.

The operation according to the fifth embodiment will be described with reference to the dial conversion table switching control diagram shown in FIG. First, in the memory 10 of the PBX, as shown in FIG.
, A plurality of conversion source data tables MT1 storing conversion dial strings to which a number string designating a plurality of type 1 telecommunications carrier line networks that can be connected for each area code of the public line network are stored, MT2, ..., MTr are registered in advance. For example, in the conversion source data table MT1 of the area code "011", "00aa0" is set as the conversion dial string that specifies the type 1 telecommunications carrier line network to be converted every day.
11 ”,“ 00bb011 ”, ...,“ 00nn01 ”
1 ”is sequentially registered. Similarly, in the conversion source data table MT2 of the area code "0121", "00aa0121", "00bb0121", ...
.., "00nn0121" are sequentially registered.

In this state, the processor 11 operates as shown in FIG.
The conversion dial string to be used on the first day is extracted from the conversion source data table shown in (a), and the dial conversion table TB to be used on the day is stored in the memory 1 as shown in FIG. 7 (b).
Create within 0. For example, in the dial conversion table TB used on the first day, the conversion dial string for the area code "011" is "00aa011", and similarly, the area conversion code "01"
The conversion dial string "21" is created by storing "00aa011". Similarly, as the dial conversion table TB used on the nth day, the conversion dial string for the area code "011" is "00nn011", and similarly, the conversion dial string for the area code "0121" is "00nn01".
1 ”is stored and created.

When the user inputs the destination dial string from the telephone 1 and dials "011" as the area code, based on the dial conversion table TB created in this way, the processor 11 causes the memory. Referring to the dial conversion table TB of the day accumulated in 10, the conversion dial string of the first day is converted to “00aa011”, the dial string is transmitted from the central line trunk 4 to the NTT exchange 7, and the NTT exchange 7 The connection is made to the NCC exchange 8 or 9 designated in.

Next, when the processor 11 detects the day change, the processor 11 again retrieves the conversion dial string to be used on the second day from the conversion source data tables MT1 to MTr, and stores the conversion table TB to be used on the day in the memory 10. create. After that, dial conversion is performed in the same procedure. In this way, different dial conversion tables are sequentially created for each day, so that the usage amount of each network in the plurality of type 1 telecommunications carrier network can be made uniform.

Example 6. Next, FIG. 8 illustrates a network selection device according to a sixth embodiment, and is a diagram showing dial conversion table switching control. The configuration of the network selection device according to the sixth embodiment also has the same configuration as that of the first embodiment shown in FIG. 1, but here, the memory 10 has a configuration shown in FIG.
, A plurality of conversion source data tables MT1 storing conversion dial strings to which a number string designating a plurality of type 1 telecommunications carrier line networks connectable for each area code of the public line network is stored, MT2, ..., MTr are registered in advance, and the processor 11 makes the first-class telecommunications carrier network different from each conversion source data table in the memory 10 at regular intervals, that is, at each unit time t. The dial conversion table shown in FIG. 8 (b) in which the conversion dial strings designating "A" are sequentially read, and the conversion dial strings designating the same type 1 telecommunications carrier line network are associated with each area code of the public line network. Create a TB and store it in the memory 10,
Based on the contents stored in the dial conversion table TB at fixed time intervals (every unit time t), each area code of the public line network is converted into a corresponding conversion dial string and output to the public line network. There is.

The operation according to the sixth embodiment will be described with reference to the dial conversion table switching control diagram shown in FIG. First, in the memory 10 of the PBX, as shown in FIG.
, A plurality of conversion source data tables MT1 storing conversion dial strings to which a number string designating a plurality of type 1 telecommunications carrier line networks that can be connected for each area code of the public line network are stored, MT2, ..., MTr are registered in advance. For example, in the conversion source data table MT1 of the area code "011", "0" is set as the conversion dial string that specifies the type 1 telecommunications carrier line network to be converted at each unit time t.
0aa011 "," 00bb011 ", ...," 00 "
"nn011" is sequentially registered. Similarly, the area code "01
21 "of the conversion source data table MT2 as conversion dial strings" 00aa0121 "and" 00bb012 ".
1 ", ...," 00nn0121 "are sequentially registered.

In this state, the processor 11 operates as shown in FIG.
From the conversion source data table shown in (a), the conversion dial string used until the first unit time elapses is taken out, and as shown in FIG. 8 (b), the dial used at the first unit time t. The conversion table TB is created in the memory 10. For example, as the dial conversion table TB used in the first unit time t, the conversion dial string with the area code “011” is “00aa011”, and similarly, the conversion dial string with the area code “0121” is “00aa011”. Each is stored and created. Similarly, (n-1) t
As the dial conversion table TB to be used for the n-th time from the start to the nt time, the conversion dial string of the area code "011" is "00nn011", and similarly, the area code "0"
The conversion dial string "121" is created by storing "00nn011".

When the user inputs the destination dial string from the telephone 1 and dials "011" as the area code based on the dial conversion table TB created in this way, the processor 11 causes the memory. The dial conversion table TB stored in 10 is referred to, for example, 1
The conversion dial string until the unit time of the second time elapses is converted to "00aa011", and the trunk line trunk 4 to NT
A dial string is transmitted to the T exchange 7 to connect to the NCC exchange 8 or 9 designated by the NTT exchange 7.

When the processor 11 detects that a unit time t has passed after creating the first dial conversion table TB, it again retrieves the conversion dial string to be used for the second time from the conversion source data tables MT1 to MTr, and The dial conversion table TB used for the second time is created in the memory 10. After that, dial conversion is performed in the same procedure. In this way, different dial conversion tables are sequentially created for each unit time, so that the usage amount of each network in the plurality of type 1 telecommunications carrier network can be made uniform.

[0054]

As described above, according to the present invention, a conversion dial string in which a number string designating a first-class telecommunications carrier's network is added for each area code of a public network in a private branch exchange. And a memory storing the information of the above, and an arbitrary line network is sequentially switched and selected from a plurality of type 1 telecommunications carrier line networks based on the information stored in the memory at regular intervals, and each sub-region of the public line network is selected. By including the control means for converting the station number into the corresponding conversion dial string and outputting it to the public line network,
There is an effect that the usage amount of each network in the plurality of first-class telecommunication carrier network can be made uniform.

In addition, a dial conversion table in which a conversion dial string in which a number string designating the same type 1 telecommunication carrier line network is added for each area code of the public line network is stored in the above-mentioned memory A plurality of types are stored for each type telecommunications carrier's network, and the control means sequentially switches and selects different dial conversion tables stored in the memory for a certain period of time, and a conversion dial corresponding to each area code of the public line network. By converting to a column and outputting to the public line network, different dial conversion tables are sequentially switched and selected at fixed intervals, and the usage amount of each network in the plurality of type 1 telecommunications carrier line networks is made uniform. The effect is that you can.

Further, by the control means, different dial conversion tables stored in the memory are sequentially switched and selected for each day, and each area code of the public line network is converted into a corresponding conversion dial string and output to the public line network. By doing this, you can select different dial conversion tables for each day,
There is an effect that the usage amount of each network in the plurality of first-class telecommunication carrier network can be made uniform.

Further, by the control means, different dial conversion tables stored in the memory are sequentially switched and selected for each unit time, each area code of the public line network is converted into a corresponding conversion dial string, and the public line network is converted. By outputting the different dial conversion tables for each unit time, the dial conversion tables can be sequentially switched and selected, so that the usage amount of each network in the plurality of first type telecommunications carrier network can be made uniform.

In addition, a schedule in which the daily switching time of the dial conversion table is stored in advance is registered in the memory, and the control means stores different dial conversion tables stored in the memory according to the schedule. Are sequentially switched and selected, and each area code of the public line network is converted into a corresponding conversion dial string and output to the public line network, thereby sequentially switching and selecting different dial conversion tables in accordance with a schedule, thereby selecting a plurality of first type There is an effect that the usage amount of each network in the telecommunications carrier network can be made uniform.

In addition, a schedule is stored in advance in the memory for switching the day of the dial conversion table for each day of the week and holidays in advance for a total of eight days. Different dial conversion tables stored in the memory are sequentially switched and selected according to the corresponding schedule, each area code of the public line network is converted into the corresponding conversion dial string, and output to the public line network to output each day or day of the week. There is an effect that different dial conversion tables can be sequentially switched and selected according to a schedule corresponding to a holiday, and the usage amount of each network in the plurality of first type telecommunications carrier network can be made uniform.

Further, a plurality of conversion sources storing conversion dial strings to which the number strings designating a plurality of type 1 telecommunications carrier line networks connectable for each area code of the public line network are stored in the memory. A data table is provided, and the control means sequentially reads out a conversion dial string designating a different type 1 telecommunications carrier line network from each conversion source data table in the memory at regular intervals, and the public line network A dial conversion table is created in which the conversion dial strings that specify the same type 1 telecommunications carrier line network for each area code are associated and stored in the memory, and stored in the dial conversion table at regular intervals. By converting each area code of the public line network to the corresponding conversion dial string and outputting it to the public line network based on the contents, The conversion dial string that specifies the first type telecommunications carrier line network is sequentially read, and the dial conversion table that specifies the same first type telecommunications carrier line network for each area code of the public line network is created. Create different dial conversion tables for each fixed period,
There is an effect that the usage amount of each network in the plurality of first-class telecommunication carrier network can be made uniform.

Further, the control means sequentially reads out the conversion dial strings designating different first type telecommunication carrier line networks from the respective conversion source data tables in the memory for each day, and for each area code of the public line network. A dial conversion table corresponding to the conversion dial strings designating the same type 1 telecommunications carrier's network is created and stored in the above memory, and the public conversion is performed on a daily basis based on the contents stored in the dial conversion table. By converting each area code of the line network into a corresponding conversion dial string and outputting it to the public line network, different dial conversion tables are created for each day based on the conversion source data table. There is an effect that the usage amount of each network in the telecommunications carrier network can be made uniform.

Further, the control means sequentially reads out the conversion dial string designating different first type telecommunications carrier line networks from the respective conversion source data tables in the memory for each unit time, and the subdivision of each public line network The same first for each station number
A dial conversion table corresponding to a conversion dial string designating a type telecommunications carrier network is created and stored in the memory, and a public network based on the contents stored in the dial conversion table is stored for each unit time. By converting each area code into a corresponding conversion dial string and outputting it to the public line network, different dial conversion tables are created sequentially for each unit time based on the conversion source data table,
There is an effect that the usage amount of each network in the plurality of first-class telecommunication carrier network can be made uniform.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a network selection device according to the present invention.

FIG. 2 is a diagram showing a structure of a dial conversion table according to the present invention.

FIG. 3 is an explanatory diagram according to the first embodiment of the present invention and showing that a plurality of dial conversion tables shown in FIG. 2 are sequentially switched and used for each day.

FIG. 4 is an explanatory view according to the second embodiment of the present invention and showing that a plurality of dial conversion tables shown in FIG. 2 are sequentially switched and selected for use per unit time.

FIG. 5 is an explanatory diagram according to the third embodiment of the present invention and showing that a plurality of dial conversion tables shown in FIG. 2 are sequentially switched and used according to a daily schedule.

FIG. 6 relates to the fourth embodiment of the present invention and is an explanatory diagram showing that the plurality of dial conversion tables shown in FIG. 2 are sequentially switched and selected for use according to the schedule of each day of the week or holiday.

FIG. 7 relates to the fifth embodiment of the present invention and is an explanatory diagram showing a structure of a conversion source data table and a structure of a dial conversion table created from the conversion source data table and sequentially switched for each day.

FIG. 8 is an explanatory diagram according to the fifth embodiment of the present invention, showing a structure of a conversion source data table and a structure of a dial conversion table created from the conversion source data table and sequentially selected for each unit time. .

FIG. 9 is a configuration diagram for explaining a conventional minimum charging route selection method.

[Explanation of symbols]

1 telephone, 2 extension interface circuit, 3 switch, 4 office trunk, 7 NTT switch, 8, 9 N
CC switch, 10 memories, 11 processors, TB1
~ TBn Dial conversion tables accumulated, TB
Dial conversion table created from conversion source data table, S, S1 to S8 schedule, MT1 to MT
r Source data table.

Claims (9)

[Claims] 1. A network selection device adapted to select an arbitrary line network from a plurality of type 1 telecommunications carrier line networks connected to a private branch exchange via a conventional public line network and connect the lines. In the private branch exchange, a memory for storing information of a conversion dial string to which a number string designating a type 1 telecommunications carrier line network is stored for each area code of the public line network, and the fixed dial Based on the information stored in the memory, an arbitrary line network is sequentially switched and selected from a plurality of type 1 telecommunications carrier line networks, each area code of the public line network is converted into a corresponding conversion dial string, and the public line is converted. A network selection device comprising: a control unit for outputting to a network. 2. The network selection device according to claim 1, wherein the memory is a conversion dial string in which a number string designating the same type 1 telecommunications carrier line network is added for each area code of the public line network. A plurality of dial conversion tables storing the above are stored for each type 1 telecommunications carrier network, and the control means sequentially switches and selects different dial conversion tables stored in the memory at regular intervals. A network selection device which converts each area code of a public line network into a corresponding conversion dial string and outputs it to the public line network. 3. The network selection device according to claim 2, wherein the control means sequentially and selectively selects different dial conversion tables stored in the memory for each day, and a conversion dial corresponding to each area code of the public line network. A network selection device characterized by converting to a column and outputting to a public line network. 4. The network selection device according to claim 2, wherein the control means sequentially switches and selects different dial conversion tables stored in the memory for each unit time to correspond to each area code of the public line network. A network selection device characterized by converting into a conversion dial string and outputting to a public line network. 5. The network selection device according to claim 2, wherein the memory stores a schedule in which the daily switching time of the dial conversion table is stored in advance, and the control means sets the schedule according to the schedule. A network selection device which sequentially selects and selects different dial conversion tables stored in a memory, converts each area code of a public line network into a corresponding conversion dial string and outputs it to the public line network. 6. The network selection device according to claim 5, wherein the memory is registered with a schedule in which the switching time of one day of the dial conversion table is previously stored for each day of the week and for a total of eight days in total. The control means sequentially switches and selects different dial conversion tables stored in the memory according to a schedule corresponding to each day of the week or a holiday, converts each area code of the public line network into a corresponding conversion dial string, and converts the public line. A network selection device characterized by outputting to a network. 7. The network selection device according to claim 1, wherein the memory is provided with a number string designating a plurality of type 1 telecommunications carrier network connectable for each area code of the public network. The conversion means includes a plurality of conversion source data tables storing conversion dial strings, and the control means converts the conversion source data tables in the memory from each conversion source data table to specify a different type 1 telecommunications carrier network. Dial sequence is read out sequentially, and a dial conversion table that corresponds to the same type 1 telecommunications carrier line network for each area code of the public line network is created and stored in the above memory and fixed. A network selection device for converting each area code of a public line network into a corresponding conversion dial string based on the contents stored in the dial conversion table for each period and outputting to the public line network. . 8. The network selection device according to claim 7, wherein said control means sequentially provides a conversion dial string designating different first type telecommunication carrier network from each conversion source data table in said memory for each day. A dial conversion table is created which stores the read dial conversion table corresponding to the same type 1 telecommunications carrier line network for each area code of the public line network and stores the dial conversion table in the above memory. A network selection device characterized by converting each area code of a public line network into a corresponding conversion dial string based on the contents stored in a table and outputting to the public line network. 9. The network selection device according to claim 7, wherein the control means sets a conversion dial string that specifies a different type 1 telecommunications carrier network from each conversion source data table in the memory for each unit time. Sequentially read out, create a dial conversion table that corresponds to the conversion dial string that specifies the same type 1 telecommunications carrier line network for each area code of the public line network, store it in the memory, and store it for each unit time. A network selection device, which converts each area code of a public network into a corresponding conversion dial string based on the contents stored in the dial conversion table and outputs the converted dial sequence to the public network.