JPH01162066A - Private automatic exchange - Google Patents

Abstract

PURPOSE:To eliminate an investigation, storage and dial operation, etc., for the set of a route and to cause operation to be efficient by selecting the optimum route from a route unit cost memory to be set in advance with a called subscriber number dial and automatically sending a dial code to be needed for route formation. CONSTITUTION:A called subscriber number to be received by a calling dial receiving part 5 is transferred to a route selecting part 8 by a connection control part 7. The route selecting part 8 retrieves a route unit cost memory 81 from the called subscriber number of a called station number and selects the route of a unit cost exponent to be a lowest change. Then, the information of a trunk line code and a sending dial code are sent. In the route unit cost memory 81, the type of a domestic network to be passed through, the type of lines, the unit cost of the utilizing charge or a unit cost exponent are enumerated by the sending dial code in each called station number, to which the called subscriber is received, in advance. Then, a route number is given and the code of a trunk line is included to select this route.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to a call originating from one of a plurality of communication terminals terminating as an extension to a subscriber exchange of a domestic communication network (hereinafter referred to as the domestic network). When all dialing codes are received for the same subscriber as the connecting office line, one of the said office lines is selected from the called party number according to the received dialing code, and the calling extension and the selected office line and all dialing codes are received. The present invention relates to a private automatic branch exchange having a connection control section that interconnects each other and transmits all selection dial codes to a central office line.

[Background of the invention]

In recent years, in addition to the National Telegraph and Telephone Company (NTT) network, a local communication network has been constructed as a domestic network, and it is now possible to subscribe to any of these multiple communication networks.

In addition, since usage charges for multiple communication networks differ, the maximum and
Produces the lowest price difference.

[Conventional technology]

In a conventional private automatic exchange, a connection control section selects a central office line according to the dial code received from a calling terminal, and sends the received dial code as a selection signal in the national network to the selected central office line.

This will all be explained with reference to FIG. 3, for example. FIG. 3 is a diagram showing a row of private automatic branch exchanges connected to two domestic networks.

In Figure 3, the automatic branch exchange 10 is within 10,000*r.
The calling terminal 22 is connected to the domestic network (5) 300 via the central office line 30 and the central office line 40, respectively.
%- and domestic network (B1400 are connected.

Each of the domestic networks (A1300 and (B) 400) has subscriber exchanges 33 and 43 that accommodate in-premises terminals 41 and communication terminals 32 and 42 on subscriber lines, and subscriber exchanges 31 and 43.
41 and subscriber exchanges 33 and 43, respectively, and have transit exchanges 34 and 44 interconnected to connect the domestic network CA1300 and (B1400), respectively. Each is directly connected within the same domestic network.

Automated 9 for premises: Switching machine IO is domestic network (3) 300/(B1
400, for example, the code ``0'' is set to the domestic network (5) 300, and the code ``9'' is set to the domestic network (B) 400. Therefore, when the calling terminal 22 calls the communication terminal 32, it starts with the dial code "0". However, for example, when the communication charges on the domestic network (B) 400 are low and you want to call all communication terminals 32 via the subscriber exchange 41, relay exchange 44, middle exchange 34, and subscriber exchange 33, the calling terminal 22 Following the dial code "9" to connect to the domestic network (B) 400, all dial codes used when the communication terminal 42 calls the communication terminal 32 are operated.

[Problem that the invention seeks to solve]

As mentioned above, in conventional private automatic branch exchanges, the caller directly searches for a route with a low communication fee and makes a predetermined dial tone, so it is possible to use various routes for the same called party, and to make calls on each route. There is a problem in that it is necessary to check or memorize the charge unit price and the dial code to be operated, and that manual dialing increases the chance of incorrect dialing.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic branch exchange system that solves the above-mentioned problems by distributing the route unit price memory money to the exchange system.

[Means for solving problems]

In-house automatic '5 of the present invention! , a switching machine receives a call from one of multiple communication terminals terminating as an extension line, and dials a dial code to the subscriber line as a central office line connecting to the subscriber exchange of the domestic communication network (hereinafter referred to as the domestic network). is received, one of the above-mentioned central office lines is selected from the called party number based on the received dialing code, the calling extension and the selected central office line are interconnected, and the entire dialing code for A pile is transferred to the central office line. A private automatic branch exchange having a connection control unit for transmitting data is provided with a route unit price memory that lists routes for all domestic networks for each central office line and each transmission dial code, as well as a 1g unit price index for each route, and When the called subscriber number for selecting a line is received from the calling extension, the route with the lowest unit price is selected from the route unit price memory, and all the stations θ and outgoing dial codes forming this selected route are sent to the above-mentioned close reading control unit. It has a full sending route selection section.

〔Example〕

Next, a private automatic branch exchange according to the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG.
The figure is a memory configuration diagram showing an example of the route unit price memory of FIG. 1.

In FIG. 1, the automatic sentence for premises: 'A@ is the call path switch 1. Built-in circuit 21 Station line circuit 3/41 p'to dial receiving section 5. In addition to the conventional elements of the automatic dial transmission section 6 and the connection control section 7, a route selection section 8 including a route unit price memory 81 is provided.

The communication path switch 1 connects the extension circuit 22, the station control circuit 3-4, the outgoing dial receiving section 5, and the automatic dial/triple communication section 6, and handles mutual exchange and connection under the control section of the connection control section 7. The extension circuit 2 is connected to the communication path switch 1 and the connection control section 7, which terminates at the communication terminal 21, and adjusts all mutual connection conditions. Each of the office line circuits 3 and 4 is connected to the office lines 30 and 40 that connect to the domestic networks (5) and (B), respectively.
It is connected to the t-channel switch 1 and the connection control section 7, and adjusts mutual contact conditions. The outgoing dial reception @5 is received 1B via the communication path switch 1 based on the dial code from the communication terminal 21 that made the call, and is notified to the connection control unit 7. The automatic dial transmitter 6 activates the connection destination via the call path switch 1 and transmits the dial code received from the connection controller 7. The components up to now are completely the same as the conventional ones.

The connection control unit 7 transfers the called subscriber number received by the calling dial reception unit 5 to the route selection unit 8, and selects one of the vacant office lines (for example) 30 of the route received from the route selection unit 8. , and causes the automatic dial transmitter 6 to transmit the dial code received from the route selector 8 to the selected office line 30. The contact α control section 7 controls the communication path switch 1 ft, and the dial code is transmitted via the communication path switch 1 by connecting the automatic dial transmitting section 6 to the seventh station line 30. In the above procedure, if the station line of the reception route is still cold, the connection control unit 7 calls the route selection unit 8 again in order to know the next route. When the connection control unit 7 transmits the office line information for which domestic networks (5) and (B) have been confirmed to be available, together with the called subscriber number, to the route selection unit 8, the office line is selected at the interval of − times. Information can be obtained.

According to FIG. 2, the route unit price memory 81 is stored in advance in advance for each called station number in which a called subscriber is accommodated, the type of domestic network indicated by the outgoing dial code, the type of line, and the unit price or unit price index of the usage fee. In addition to enumerating and assigning all route numbers,
Contains the code of the station line that selects this route.

This will be explained with reference to FIG. 3. A description of the components shown in FIG. 3 is included in the prior art and will therefore be omitted here. 2g
The office line code in FIG. 2 is an encoding of whether the office line 30 or the office line 40 is selected by the private automatic branch exchange 10. For example, if the called station is subscriber exchange 33, the route is to subscriber exchange 431.
directly from the subscriber exchange 41, transit exchange 44,
There are two routes via the relay exchange 34. In this case, the station line codes are different. Also, from station-30 to the domestic network (
5) Connect to the subscriber exchange 31. There is a dial code for connecting the subscriber exchange 33 from this subscriber exchange 31 again to the domestic subscriber exchange 33 via the domestic network (B)i. A route unit price memory 81 is provided in advance to list all of these charges, including the unit price of one call charge.

The route selection unit 8 searches the route unit price memory 81 from the called subscriber number or the called station number, selects all routes with the unit price index that provides the lowest charge, and sends information on the station line code and the sending dial code. However, if a station line code with an idle line is also received, there is no need to call again.

When the route unit price memory 81 records all the routes with low usage charges, the connection completion rate decreases, but the economic efficiency of the charges can be ensured.

Although the route selection section is illustrated separately in the above embodiment, the hardware is usually configured such that a microcomputer is included in the connection control section 7 that controls the program and take.
Ru. The outgoing dial receiving section 5 and automatic dial transmitting section 6 are also included in the connection control section 7 when performing digital processing via the signal line and control information line.

〔Effect of the invention〕

As explained above, the automatic 22' changing machine for premises of the present invention has the following features:
By dialing the inventor's basic called subscriber number, the route selection unit selects all optimal routes from the route unit price memory set in advance, and automatically sends out the dial code necessary for route formation. This has the effect of improving operations by eliminating the need for research, memorization, dial operations, etc.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the automatic private exchange of the present invention, FIG. 2 is a memory configuration diagram showing an example of partial details of FIG. 1, and FIG. FIG. 2 is a configuration diagram showing an example of connecting to a network. 7...Tight cord control unit, 8...Route selection unit, 1o...Automatic transit S machine for premises, 2o...
・Extension, 21...Communication terminal, 30.40...
...Station line, 81...Route single picture memo lj, 30
0.400・Mountain・・Domestic network. Agent Patent Attorney Susumu Uchihara

Claims (1)

[Claims] When a call is made from one of multiple communication terminals terminating as an extension line and a dial code for a subscriber line as a central office line connected to a subscriber exchange of a domestic communication network (hereinafter referred to as the domestic network) is received, a connection control unit that selects one of the office lines from the called party number based on the selected dial code, interconnects the calling extension and the selected office line, and sends a selection dial code to the office line; A private automatic branch exchange is equipped with a route unit cost memory that lists routes for all domestic networks for each outgoing dial code, at least one for each central office line, and a communication unit cost index for each route, and a called subscriber that selects a central office line. and a route selection unit that selects a route with the lowest unit price from the route unit price memory when receiving a telephone number from the calling extension, and sends the office line and outgoing dial code forming the selected route to the connection control unit. An automatic branch exchange machine featuring: