JPS6320943A - Customer owned and maintained telecommunication installation having path selecting function - Google Patents

Abstract

PURPOSE:To select a prescribed path automatically by storing a selection code inputted from a terminal equipment before the terminal equipment is connected to a communication line installation to distinguish a designated path, collating and comparing the inputted selection code with a stored selection code and sending the result to the communication line installation to specify the path designated by the stored information. CONSTITUTION:When it is opposed that a selection code '06'-'123'-'4567' representing a telephone number of Osaka is inputted from an extension telephone set 12A in a private branch exchange (installed in, e.g., Tokyo), a storage circuit 15 stores the selection code and a comparison circuit 17 collates aud compares the number '06' representing a toll station number with a selection code in a path selection dictionary stored in a memory circuit 16, i.e., a toll station number. For example, three paths are selected to the toll station number '06' and if the paths are disabled for use due to a fault or the like, the path is selected is the order of the path of enterprises C, B and A by means of a bypass path. When the path of the enterprise C is selected, a selection code sending circuit 18 sends a composite selection code '0077'-'06'-'123'-'4567' being the result of addition of a code '0077' to the head of the selection code to a trunk 14 via an office line trunk 13. A relay station connected to the trunk line 14 selects automatically the path of the enterprise C in respons to the added selection code '0077'.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is characterized in that a selection code sent from a terminal device and specifying a route selects a route according to a predetermined priority order of the user. It relates to private telecommunications equipment with an automatic selection function.

(Prior art) In the past, public telecommunications networks were the only communication networks such as telephone networks, facsimile communication networks, and data communication networks, but with the enactment of the Telecommunications Business Law, multiple Type 1 telecommunications carriers It is now possible to use the provided telecommunications line equipment and the telecommunications line resale equipment provided by multiple Type 2 telecommunications carriers. Along with this, there has been a demand for efficient and economical use of the above-mentioned telecommunication line equipment.

(Problems to be Solved by the Invention) For example, a case will be explained in which a call is made from Tokyo to Osaka using a telephone network. Now, in addition to the conventional communication network, communication networks of other carriers are installed between Tokyo and Osaka, and users can select one of them to make calls. . In this case, if the area code is added and the other party's telephone number is sent as before, the conventional communication network is selected. On the other hand, before the area code, for example, "0
077'' is added, the newly installed communication network is automatically selected at the relay station. In this way, when selecting a new communication network, a predetermined additional selection code must be added and transmitted in addition to the conventional selection code, which requires less user operation. There are drawbacks that can be troublesome. In addition, when trying to make a call, it is troublesome to have to think about which communication network will be the cheapest to select before dialing each time, and the most suitable communication network is not always selected. However, there are also problems in terms of economy. In particular, if a large number of such communication networks exist, the above-mentioned problems may become even more pronounced. .

The object of the present invention is to eliminate the above-mentioned drawbacks and to enable the user to automatically select a predetermined route without having to dial an additional selection code to select a particular route among a plurality of routes. The aim is to provide self-employed telecommunications equipment that can be used to

Still another object of the present invention is to provide private telecommunications equipment that can automatically select a route while efficiently utilizing a dedicated line when a dedicated line is installed as communication line equipment. It is.

(Means and effects for solving the problems) The present invention has the following features:
In private telecommunications equipment that has the function of connecting terminals to each other and the function of connecting terminals to communication line equipment, when selecting communication line equipment from the terminal, connect the terminal to the communication line equipment. means for storing a selection code previously input from a terminal; a selection code input from the terminal; means for storing information that can be specified in correspondence; means for collating and comparing the input selection code with the selection code stored in the storage means; and means for transmitting the selected selection code to the communication line equipment in a form that allows the route specified by the information stored in the storage means to be specified.

Furthermore, the present invention provides a means for storing a selection code inputted from a terminal in a private telecommunications facility having a function of connecting terminals to each other and a function of connecting the terminal to communication line equipment; A selection code input from the machine and multiple communication ports vA on the route specified by this selection code.
means for storing in correspondence information that can distinguish and designate routes when facilities exist, a selection code input from a terminal, and a selection code stored in the storage means; means for comparing and matching the input selection code; and when the comparison means detects a selection code that matches the input selection code, if the designated communication line equipment is a leased line, the input selection code; is sent as is to the communication line equipment, and if the specified communication line equipment is not a dedicated line, an additional selection code corresponding to the selection code is added to the input selection code and sent to the communication line equipment or input. The present invention is characterized by comprising means for transmitting the selected code as it is.

Furthermore, the present invention provides a means for storing a selection code inputted from a terminal in a private telecommunications facility having a function of connecting terminals to each other and a function of connecting the terminal to communication line equipment; When a plurality of communication line facilities exist on the route specified by the selection code, the selection code input from the machine is stored in correspondence with information that allows the selection code to be used to distinguish between these routes. means for collating and comparing a selection code inputted from a terminal with a selection code stored in the storage means; and a selection code matching the input selection code is detected by the comparison means. When the specified communication line equipment is a leased line, the input selection code is sent as is to the communication line equipment, and when the specified communication line equipment is not a dedicated line, the selection code corresponds to that selection code. means for adding an additional selection code to the input selection code and transmitting it to the communication line equipment, or for transmitting the input selection code as it is; It is characterized by comprising means for deleting a portion and transferring it to another communication line facility.

In the following explanation, for convenience, the private telecommunications equipment of the present invention will be described as a private branch exchange that uses a telephone as a terminal and a central office line and a private line as communication line equipment, but the present invention is limited to such equipment. Instead, for example, it may be configured as a line exchange in a data exchange using data terminals including facsimile, telex, computer, and still image terminals as terminal devices.

FIG. 1 is a diagram showing the overall configuration of communication line equipment using the private branch exchange of the present invention. For convenience of explanation, one private branch exchange 1 is installed in Tokyo, and the other private branch exchange 2 is installed in Tokyo.
is assumed to be located in Osaka. A plurality of extension telephones are connected to each of these private branch exchanges 1 and 2, one of which is indicated by reference numerals 3 and 4, respectively.

A dedicated line 5 is installed between a private branch exchange a1 in Tokyo and a private branch exchange 2 in Osaka. Furthermore, a route 8 to the operator and a route 9 to another operator B are provided between the relay stations 6 and 7, and the configuration is such that either one can be selected and used. It is assumed that

Route 8 is a conventional route, and when selecting this route, the conventional telephone number, that is, the selection code, can be inputted from the power supply machine. On the other hand, when route 9 is selected, it is necessary to add an additional selection code specifying this to the beginning of the conventional selection code and send it to the relay station. The relay station is configured to automatically select a predetermined route by detecting whether or what kind of additional selection code is added.

In the private branch exchange of the present invention, a route selection dictionary is stored that predetermines which route is selected for each area code, and the area code input from the extension telephone 3 is The area code is checked against the route selection dictionary, and an additional selection code specifying a predetermined route is automatically added to the beginning of the area code and sent to the relay station 6. In addition, if a dedicated line 5 is installed,
The route to be selected including this dedicated line is determined in advance, and the dedicated line 5 or another route can be selected accordingly. Therefore, the user only needs to input a phone number as usual, and there is no need for any troublesome operations to select a route.

(Embodiment) FIG. 2 is a circuit diagram showing the configuration of an example of a private branch exchange having a route selection function according to the present invention. The private branch exchange typically includes a call path switch 11 to which a plurality of extension telephones 12A, 128.12C-m- are connected. Further, the communication path switch 11 is connected to a central office line 14 via a central office line trunk 13. In the present invention, for example, if there is a storage circuit 15 that temporarily stores a selection code input from the telephone 12A, a selection code, and a plurality of routes designated by the selection code, at least one of the selection codes is provided. A memory circuit 16 that stores a route selection dictionary in which additional selection codes specifying routes are associated with each other is compared with the selection code taken into the storage circuit 15 and the selection code stored in the memory circuit 16. A comparison circuit 17 for comparison is provided. It is now assumed that a private branch exchange is installed in Tokyo, and a selection code r06J - r123 J - r4567J representing a telephone number in Osaka is input from one extension telephone 12A. The memory circuit 15 stores this selection code, and the comparison circuit 17 compares "06" representing the area code with the selection code of the route selection dictionary stored in the memory circuit 16, that is, the area code.

Figure 3 shows the configuration of an example of a route selection dictionary.
It consists of an area code in the selection code, a route, an additional selection code specifying the route, and a detour route. For example, three routes can be selected for Osaka's area code "o6", and these routes are prioritized. In other words, the route of operator C has the highest priority and is normally selected. If this route is unavailable due to a failure etc., the route of operator B with the next priority is selected as a detour route. This is selected because it is specified. If this route is also unusable, operator A will further instruct the detour route.
The route will be selected.

Now, when the route of operator C is selected, the selection code sending circuit 18 adds the additional selection code to the beginning of the input selection code, and generates a composite selection code ro077J - r06J -
r123 J - r4567J is sent to the central office line 14 via the central office line trunk 13. The relay station connected to this central office line 14 automatically selects the route of operator C in response to the additional selection code r 0077 J.

As described above, according to the present invention, the user can determine whether or not to add an additional selection code for selecting a specific route from the extension telephone, and if so, what kind of additional selection code to add. There is no need to think about it, and by inputting r06J - r123J - r 4567 J in the same way as before, the optimal route will always be automatically selected, and the operability will be extremely high. Furthermore, if a route selection dictionary is created so that an inexpensive route is always selected when specifying a route, it will be advantageous in terms of economy. The route selection dictionary can be stored in ROM or RAM, but if ROM is used, the route selection dictionary can be changed by replacing it, or if RAM is used, the route selection dictionary can be changed by rewriting its contents. It is possible to flexibly respond to conditions provided by multiple operators.

FIG. 4 is a block diagram showing the configuration of another example of the private branch exchange according to the present invention. In this example, a dedicated line is installed in addition to the central office line, and this can also be used selectively. In FIG. 4, parts that are the same as those shown in FIG. 2 are designated with the same reference numerals, but those on the Tokyo side are given the subscript rAJ, and those on the Osaka side are given the subscript rBJ. A leased line trunk 194 is provided in the call route switch 114 of the private branch exchange on the Tokyo side, and this is connected to the call route switch 1 of the private branch exchange on the Osaka side via the leased line 20.
1B to a leased line trunk 19B. In addition, the office line trunks 13A and 13B are connected to relay stations 218 and 21B via office lines 144 and 14B, respectively, and routes 22, 23, and 24 of carriers A, B, and C are installed between these relay stations. has been done.

Let's take the case of calling from Tokyo to Osaka as an example. The selection code input from the extension telephone 12-IA connected to the call path switch 11A of the Tokyo private branch exchange, for example r06J - r123 J - r4567J, is supplied to the memory circuit 15A via the call path switch IIA, where - memorized in time. In this example, the memory circuit 16
A route selection dictionary consisting of routes to be selected including dedicated &120 and necessary additional i-choice codes is stored in advance in A. FIG. 5 shows the structure of an example of such a route selection dictionary. In this example, for the area code "06", the leased line 20 is set as having the highest priority, and the following are route 24 of carrier C, route 23 of carrier B, and route 23 of carrier A. Priorities are given in the order of 22. Therefore, when the area code "06" is input, the dedicated cotton 20 is first selected, and the selection code sending circuit 18A
sends a signal to leased line trunk 19^ to excite it,
Set up a line via a dedicated line. Also, if dedicated line 2
If 0 cannot be used, select operator C as it is specified by the detour route and use the additional selection code r00.
Composite selection code ro077j-r with 77J added to the beginning
06J-r123 J-r4567J is sent to the relay station 21A via the office line trunk 13A. As a result, route 24 of operator C is automatically selected.

FIG. 6 is a flowchart showing the operation in this embodiment. Now, when the caller takes the extension telephone 12A off-hook and inputs a selection code by operating the dial on the extension telephone, it is stored in the memory circuit 15A.

When the reception of the first digit of this selection code is completed, this first digit
It is determined whether the number is "0" or the first digit of the extension number, and if it is the first digit of the extension number, reception is performed up to the number of receiving digits of the extension number.

When reception is completed up to the number of digits received, the extension telephone of the called party is driven by the received extension telephone number and connected to the extension telephone of the caller.

On the other hand, if the first digit is other than O, it waits for the second digit to be received. It is determined whether this second digit is "0" or not, and if it is other than "0", it is a local connection call, so the call waits until the number of digits of the local telephone number has been received.

When the number of digits received within the city is reached, the central office line trunk 13^ is activated, the central office line 14A is connected, and the local telephone number is transferred to the relay station 21.
When the transmission is completed, the extension telephone 12A and the central office trunk 13A are connected.

On the other hand, if the second digit is "0", it is a long-distance connection call, and therefore up to the number of digits of the long-distance telephone number can be received. As mentioned above, this long-distance phone number is sent to the comparison circuit 17^,
A dedicated line or a specific carrier's route is selected by comparing the toll phone number with the long-distance telephone number in the route selection dictionary stored in the memory circuit 16A. When the leased line 20 is selected, the leased line trunk 19^ is activated and the extension telephone 12A is connected to the leased line 2.
0 and send the phone number. On the other hand, when the office line is connected, the office line trunk 13A is activated and a composite selection code with a predetermined additional selection code added to the beginning is sent to the office line 14A.

In FIG. 4, for convenience of explanation, a storage circuit, a memory circuit,
Although the comparator circuit and the selection code output path are shown separately, these functions can actually be achieved by a computer, RAM, ROM, etc. It is also possible to set a specific extension number in order to select a dedicated line.

In the present invention, the functions of the leased line can also be further expanded. Next, such an embodiment will be described. As shown in FIG. 7, private branch exchanges 31 of the present invention are installed in Tokyo and Osaka.
A and 31B are installed, and a dedicated cotton 32 and routes 33 and 34 of two companies are installed between them. Now, we will explain the case where a user in Tokyo calls into Osaka, and the case where a user in Tokyo calls outside of Osaka, for example, Kyoto.

First, call path switch 36A of private branch exchange 31A in Tokyo.
Select code r06J -r from the telephone 35A connected to
The case where 987J-r6543J is input will be explained. In this example, the memory circuit of the embodiment shown in FIG.
The memory circuit, comparison circuit, and selection code sending circuit are shown as central processing unit (CPII) 37A.

As described above, when a selected code within Osaka city is input, the dedicated line trunk 38 is activated by the outgoing route selection dictionary shown in FIG. 8, and the selected code is installed in Osaka via the dedicated line 32. is transmitted to the private branch exchange 31B. An incoming route selection dictionary is stored in advance in the CPO 37B of the private branch exchange 31B in Osaka.

FIG. 9 shows the structure of an example of this incoming route selection dictionary, in which the area code is associated with the number of digits to be deleted from the upper digits of the selection code.

In this example, the local exchange 31B is installed in Osaka city, so when making a call within Osaka city, the area code is 06.
” is unnecessary, so it will be deleted. In this way, CPO37B deletes the upper two digits of the input selection code r987 J - r 6543
J to the relay station 41 via the office line trunk 39B,
Furthermore, an incoming call signal is sent to the telephone number [43] via the relay station 42. In this way, it is possible to make a call from the telephone 35A in Tokyo to the telephone 43 in Osaka using the dedicated line 32. In this case, if the dedicated line 32 is unavailable for some reason, the route 33 of carrier A having the next priority is selected, and the additional selection code r 0077
The input selection code to which J is added is sent to the relay station 40, and the incoming call signal is sent to the telephone 43 via the relay stations 40, 41, and 42 without passing through the private branch exchange 31B in Osaka.

Next, a case of calling from Tokyo to Kyoto will be explained. Now select code r075 J from telephone 35A in Tokyo.
-r765 j -r4321J is assumed to be input. In this case as well, the dedicated line 32 is selected by the outgoing route selection dictionary/book shown in FIG. It is transmitted to the CPO 37B via the communication path switch 36B. The CPO 37B uses the incoming route selection dictionary shown in FIG. 9 to send the input selection code as it is to the relay station 41 via the office line trunk 39B without deleting the upper digit area code, and then passes through the relay station 44. Then, an incoming call signal is sent to the telephone set 45 of the corresponding telephone number in Kyoto City. In this example, if the dedicated line 32 is unavailable due to a breakdown or the like, the route 34 of carrier B is selected,
An incoming call signal is sent to telephone 45 via relay stations 40, 41 and 44.

(Effects of the Invention) As described above, according to the private telecommunications equipment of the present invention, a predetermined route is automatically selected without the user having to input an additional selection code for selecting a route. The operability is very good, and since the optimum route is always selected, it is also suitable for management. Further, since the dictionary for route selection can be changed, it is possible to flexibly deal with conditions provided by a plurality of operators. Furthermore, if a dedicated line is installed, a central office line connection can be made via this, so the efficiency of using the dedicated line can be significantly improved.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the overall configuration of communication line equipment using a private branch exchange as private telecommunications equipment of the present invention; FIG. 2 is a block diagram showing the configuration of an embodiment of the private branch exchange of the present invention; FIG. 3 is a diagram showing the configuration of an example of the route selection dictionary, FIG. 4 is a block diagram showing the configuration of another embodiment of the private branch exchange of the present invention, and FIG. 5 is an example of the route selection dictionary. FIG. 6 is a diagram showing a flowchart for explaining its operation, FIG. 7 is a block diagram showing the configuration of yet another embodiment of the private branch exchange of the present invention, and FIG. FIG. 9 is a diagram showing the configuration of an example of the outgoing route selection dictionary, and FIG. 9 is a diagram showing the configuration of an example of the incoming route selection dictionary. 1, -2.-Private branch exchange 3.4...Extension telephone 5
--・- Dedicated line 6.7・・・Relay station 8.9・
-Route If, IIA, IIB...-Call route switch 12A~1
2C, 12-14 to 12-3A, 12-IB to 12-
3B...-extension telephone top 13, 13^, 13B-office line trunk 14.14A, 14B...-office line 15.154
．． 158...-Memory circuit 16, 16^, 16B-Memory circuit 17, 17A, 17B,--Comparison circuit 18, 18^
, 18B...-Selection code sending circuit 19^, 19B--Dedicated line trunk 20--Dedicated line 22.23.24--One way 31A, 31B--Internal exchange fai 32-Dedicated line 33.34-- One way 358, 35B -
- Extension telephones 36A, 36B...Call path switches 37A, 37B - Central processing units 38A, 38B - 1. Dedicated line trunks 39A, 3
9B... Office line trunk 40.41, 42.4'4...
-Relay station 43.45-・Telephone patent applicant Nippon Telecommunications Construction Co., Ltd. Figure 5 Figure 8 Figure 9

Claims (1)

[Scope of Claims] 1. In private telecommunications equipment that has the function of interconnecting terminals and the function of connecting terminals and communication line equipment, when selecting communication line equipment from the terminals: means for storing a selection code inputted from a terminal device before connecting the device to a communication line facility; a selection code inputted from the terminal device; , means for storing in correspondence information that can distinguish and specify those routes, and means for collating and comparing the input selection code and the selection code stored in the storage means. and means for transmitting the selection code input by the comparison means to communication line equipment in a form that allows the route specified by the information stored in the storage means to be specified. Private telecommunications equipment with route selection function. 2. In a private telecommunications facility having a function of connecting terminals to each other and a function of connecting the terminals to communication line equipment, means for storing a selection code input from the terminal; and a means for storing a selection code input from the terminal. means for storing in correspondence a selection code to be selected, and information that can distinguish and specify those routes when a plurality of communication line facilities exist on the route specified by the selection code; means for collating and comparing a selection code input from a terminal with a selection code stored in the storage means; and a case where the comparison means detects a selection code that matches the input selection code; If the specified communication line equipment is a dedicated line, the input selection code is sent as is to the communication line equipment, and if the specified communication line equipment is not a dedicated line, an additional selection code corresponding to the selection code is sent. 1. A self-employed telecommunications equipment having a route selection function, characterized in that the private telecommunications equipment has a means for adding the input selection code to the input selection code and transmitting it to the communication line equipment, or for transmitting the input selection code as it is. 3. In a private telecommunications facility having a function of connecting terminals to each other and a function of connecting the terminals to communication line equipment, means for storing a selection code input from the terminal; and a means for storing a selection code input from the terminal. means for storing in correspondence a selection code to be selected, and information that can distinguish and specify those routes when a plurality of communication line facilities exist on the route specified by the selection code; means for collating and comparing a selection code input from a terminal with a selection code stored in the storage means; and a case where the comparison means detects a selection code that matches the input selection code; If the specified communication line equipment is a dedicated line, the input selection code is sent as is to the communication line equipment, and if the specified communication line equipment is not a dedicated line, an additional selection code corresponding to the selection code is sent. means for adding the input selection code to the input selection code and transmitting it to the communication line equipment, or for sending the input selection code as it is, and for the selection code input via the dedicated line to be inputted as is or to delete a part of it as necessary. A self-operated telecommunications facility characterized by comprising a means for transmitting the information to another communication line facility.