JPH01174054A - Selecting device for public communication business network - Google Patents

Abstract

PURPOSE:To prevent excess concentrative utilization of communication in a communication network by providing a means selecting an optional public communication network among plural public communication networks properly stored in a storage means and utilizing decentralizingly the public communication networks when application of calls by callers is concentrated on one and same toll station number. CONSTITUTION:When a caller hooks off a telephone set 2 and dials a toll station number, the dialed number is received through a terminal controller 3 by a CPU 1. Then the CPU 1 compares the said toil station number with the toll station number stored in a minimum charge new public communication business (NCC) network storage device 6 and extracts the NCC network name corresponding to the coincident toll station number when the coincident toll station number is stored. When the extracted NCC network name is not a specific NCC network name but a number representing the decentralization of the NCC networks, the CPU 1 uses a counter 8 to extract the content of an NCC network decentralization storage device 7. The CPU 1 acquires a trunk line sends and an NCC network access number in response to the extracted NCC network name to the trunk line.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a public telecommunications network selection device used in key telephone exchanges, private branch exchanges, and the like.

Background of the Invention In recent years, due to the revision of the Telecommunications Business Act, the telecommunications business has been widely opened to the public since April 1985, leaving everything in the hands of private public telecommunications carriers. As a result,
In contrast to public carriers (Corrmon Carriers), which have traditionally carried out telecommunications business exclusively, new public carriers (NCCs) have been established.
Several NCCs have been established, and several communication networks have been established by these NCCs.

As a result, users can reduce their communication costs by selecting the one with the lowest call charges from among these NCCs and conventional public carriers. The rate public communication carrier network selection device (hereinafter referred to as NCC selection device) is capable of selecting the communication line network with the lowest charge among a plurality of public communication network networks.

) has been proposed.

Conventionally, this type of NCC selection device has a lowest charge NCC network storage unit that stores the NCC network with the lowest charge according to the dialed area code, and selects each NC from the conventional public telecommunications carrier network.
It also includes an additional dial number storage section that stores additional dials required when connecting to the C network. This N.C.C.
In the selection device, when a caller performs a dialing operation, the NCC network storage unit determines the communication line network with the lowest call charge according to the dialed area code, and connects to each NCC network. The additional dial number (for example, 0077, etc.) necessary for the calling party is retrieved from the additional dial storage section and sent to the subscriber station of the conventional public communication network to which the calling party subscribes. After that, by transmitting the number dialed by the caller to the subscriber station, the lowest rate NC
It is possible to communicate by connecting to the receiving party's telephone via the C network.

Problems to be Solved by the Invention However, in the conventional lowest charge NCC network selection device described above, the NCC network with the lowest call charge is limited to one depending on each area code with which communication is to be conducted. Therefore, even if there are a plurality of NCC networks with the same charges, there is a risk that one NCC network will always be selected, resulting in a problem that the frequency of use of a particular NCC network increases.

The present invention has been made to solve the above-mentioned problems, and when there are multiple NCC networks with the same charges for the same area code, each time a call is made, the NCC network different from the previously used NCC network is used. The purpose is to reduce the frequency of use of a specific public communications network by connecting via the network.

Means for Solving the Problems In order to achieve the above object, the present invention provides a method for selecting an arbitrary NCC from among a plurality of public telecommunications carrier networks when the calling party's calling activities are concentrated in area codes with the same charge. The network is distributed and selected appropriately.

Effects The present invention has the following effects due to the above configuration. In other words, if the call charges in the same area are the same even if there are multiple public telecommunications carrier networks, instead of selecting only a specific NCC network, any NCC network will be selected and distributed as appropriate, so It is possible to reduce the frequency of use of the public communications network.

Embodiment The drawings show the configuration of an embodiment of the present invention. In the drawings, 1 is a central processing unit (hereinafter referred to as CPU).

), 2a and 2b are telephones, and the terminal control device 3 notifies the CPU 1 of the status of the telephones 2a and 2b, and also controls the telephone 2a by commands from the CPU 1.
, 2b to perform processing such as making a ringtone sound. 4a and 4b are office line control devices, respectively, which capture the office line in response to commands from the CPU 1, and control the transmission of a signal corresponding to the telephone number of the communication destination using an arbitrary office line. do.

Reference numeral 5 denotes a communication path, which connects the telephones 2a and 2b to an external telephone or a central office line via central line control devices 4a and 4b under the control of the CPU 1.

Reference numeral 6 denotes a lowest charge NCC network storage device, which stores the name of the NCC network with the lowest call charge according to the area code. In addition, if the charges corresponding to the same area code are the same in multiple NCC networks, this lowest charge NCC network storage device 6 stores a value instructing NCC network distribution instead of a specific NCC network name. There is. 7 is N as an NCC network distribution selection means.
This is a CC network distribution method storage device, and stores NCC network names according to the ratio to be captured. 8 is a counter, N
This is to instruct which content of the CC network distribution method storage device 7 is to be retrieved, and each time this content is retrieved, the C
The counting amount is incremented by the instruction from PU 1.
will be done.

Therefore, according to this counter 8, the CPU 1
While sequentially retrieving the contents of the C network distribution method storage device 7,
After retrieving the last contents of the NCC network distribution method storage 7, the counter 8 is reset and the first contents of the NCC network distribution method storage 7 can be retrieved.

Next, the operation of the above embodiment will be explained. In the above embodiment, when the calling party picks up the handset of the telephone 2 and dials the area code, the dialed number is transferred to the CP.
U 1 receives it through the terminal control device 3 . Next, the CPU 1 compares this area code with the area code stored in the lowest rate NCC network storage device 6, and if a matching area code is stored, the CPU 1 selects the area code from the matching area code. Extract the NCC network name corresponding to the station number. When the retrieved NCC network name is not a specific NCC network name but a NCCCC number, the CPU 1 uses counter 8 to identify the NCC network name.
The contents of the network distributed storage device 7 are retrieved. The CPU 1 captures the central office line and sends an NCC network access number corresponding to the retrieved NCC network name to the central office line. Thereafter, the number dialed by the caller is sent to the station, the communication path 5 is controlled, and the telephone 2 is connected. This allows the calling party to communicate with the other party via the NCC network. Specifically, if the content retrieved from the NCC network distributed storage device 7 is undefined, the distributed storage device 7 increments the counter 8 and retrieves the next content. Assuming that the processing capacity of this counter is 4 bits, the contents of 16 NCC network distributed memories can be registered in this counter 8, and as a result, N
Depending on the number of NCC networks stored in the CC network distribution storage device 7, opportunities to connect to each NCC network can be distributed.

For example, if NCC network names are stored one by one, even distribution is possible; one NCC network name is stored two times, and other
If one C network name is stored, it is possible to give twice as many opportunities to a specific NCC network as to other NCC networks.

As explained above, according to the above embodiment, the minimum charge N
NC rather than a specific NCC network name in the CC network storage device.
By storing the CCC differential variance value, when a long distance call is made to an area where multiple NCC networks with the same charge are installed, the NCC network distribution method will be used according to the contents stored in the NCC network distribution method storage device. NCC networks can be distributed for each use, and even if a line user who frequently makes calls to a specific area code has concluded line usage contracts with multiple NCC networks, each NCC network It has the advantage that it can be used equally or in a desired ratio.

Effects of the Invention As is clear from the above embodiments, the present invention has the following effects.

First, if a line user who frequently makes calls to the same area code has concluded line usage contracts with multiple NCC networks, if the NCC network selection device is equipped with only the lowest rate selection means, only one NCC network selection device can be used. Line usage is concentrated only on the NCC network, but with this invention, each NCC network can be selected and used equally or according to a desired usage ratio, and a specific NCC network can be used.
It is possible to prevent excessively intensive use of the network.

Further, by appropriately changing the distributed use data, it is possible to selectively use any NCC network in a distributed manner depending on the desired frequency of use, and it is possible to provide an NCC network selection device with a wide range of usage variations.

[Brief explanation of the drawing]

The drawing is a block diagram showing a schematic configuration of an electronic exchange applied to an embodiment of the NCC network selection device. 1...Central processing unit, 6...Lowest charge NCC network storage device (lowest charge NCC network storage selection means), 7...NC
C network distribution method storage device (NCC network distribution selection means), 8.
··counter.

Claims (1)

[Claims] A storage means for storing an area code and the number of a public communications network with the cheapest call charges to that area code, and a storage means for storing an area code and the number of a public communications network with the lowest call charges to the same area code; , and when call applications from callers are concentrated in the same area code, any public communications network is appropriately selected from among the plurality of public communications networks in the storage means to distribute the public communications network. A public telecommunications carrier network selection device characterized in that it is provided with means for use.