JPH09214603A - Method for distributing called destination at the time of connecting public network, private line and public network - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for automatically distributing incoming calls from a public network to plural called destinations which are previously decided (private line/public network via private network) uniformly at a constant rate or in accordance with a schedule in an exchange provided with a public network/private line/public network connection function. SOLUTION: When the called destinations of the calls terminated from the public network are uniquely decided by means of a trunk line, a reception number, a sub-address and the like in the exchange l1 provided with public network-private line (public-private), private line-public network (private-public), public network-private line-public network (public-private-public) connection function, the function for uniformly conversion-controlling the number of the called destination with call time or the frequency is provided and uniform distribution termination is executed. A function for converting the called destination into the number of the called destination, which follows the schedule that is previously decided by means of a day, the data, a time zone or a specified condition, is provided and condition distribution termination is executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of automatically distributing call destinations in an exchange having a public / private public connection function. In a private branch exchange (PBX) voice telephone, public-private (public network-dedicated line), dedicated-public (dedicated line-public network), public-dedicated-
The public (public network-private line-public network) connection was not allowed in the system, but recently the connection between the public network and the private line was lifted, and soon the public network-private line-public network Public-Public-Public Connections will also be allowed in private branch exchanges.

For this reason, companies that use private branch exchanges are building networks that combine a public network and a private line for the purpose of reducing call charges and improving services. However, telemarketing industries (mail order services) and customer service centers (technical consultation and guidance services) can be used to concentrate public-only (-public) call recipients in one location, or in some cases distribute them to multiple locations. However, there is a demand for even distribution to multiple locations.

Therefore, it has become necessary for companies to equip the exchange with a function capable of flexibly changing the destination of the call, which is suitable for use on the spot.

[0004]

2. Description of the Related Art In a conventional private branch exchange, an incoming call distribution service can be provided to extension subscribers in a company. However, in an exchange having a public / private public connection function, some incoming call forms (PBX) are available. (Excluding additional number dial-in, etc.)
The destination is uniquely determined in correspondence with the line (general station line incoming) / received numbers / subaddress, and is converted into the destination number and connected to the private line (or public network via the private line).

However, in the conventional technology, incoming calls such as toll-free calls from the public network are evenly distributed to a plurality of places other than the own exchange, or are distributed at a fixed ratio, depending on the date, the day of the week, the time of day, etc. It was not possible to distribute the callees to multiple locations. It has been possible in the past to distribute calls that come in simultaneously from multiple public subscribers to multiple extension subscribers.

[0006]

[Problems to be solved by the invention] In public / private public connection, if the incoming call from the public network can be uniquely determined to correspond to the line / received digits / sub-address, I want to evenly distribute it to multiple places, but there is no such function, so it is a fixed location There was a problem that the incoming call was concentrated on the terminal and the caller was made to wait due to an increase in the accumulated calls. It is an object of the present invention to evenly distribute the call to a plurality of places when the callees are uniquely determined by line line correspondence / received numeral / subaddress correspondence. . In the case of a public / private public connection, if the recipients are uniquely decided to correspond to the line / received numbers / sub-addresses, I would like to distribute the recipients at a certain ratio, but there is no such function, and there is a centralized incoming call to a fixed location and outgoing There was a problem that kept the person waiting. It is an object of the present invention to distribute call destinations to a plurality of locations at a fixed ratio when the call destinations can be uniquely determined for line correspondence / received numbers / subaddress correspondence. . In public-private public connection, when the destination is uniquely determined for line support / received digits / subaddress support, I want to change the destination dynamically according to a fixed schedule, but there is no such function, only at a fixed location I was not able to receive the call, and I was forced to operate. It is an object of the present invention to make it possible to change the called party depending on the day of the week, the month and day, the time zone, or a specific condition when the called party can be determined to correspond to the line / received number / sub-address.

[0007]

FIG. 1 is a block diagram showing the principle of the present invention. In the figure, 1 is a switchboard (PBX), 2 is a public line accommodated in the switchboard, 3 is a private line accommodated in the switchboard, 4 is an extension of the own station, and in the switchboard 1, 11 is an incoming call detection & incoming call Pre-analysis unit, 12 is a local line-extension connection unit,
13 is a station line-dedicated line connection unit, 14 is a station line-destination number conversion table, 15 is a uniform incoming call control unit, 16 is a ratio incoming call control unit, 17
Indicates a conditional call control unit.

The station line / destination number conversion table 14 is
It is data indicating whether it is an extension call or a public-private connection corresponding to a received numeral / sub-address, and a destination number is also stored. The station line incoming detection / destination analysis unit 11 constantly monitors the public line 2 and has a function of detecting an incoming call and a function of analyzing whether or not the incoming call is a public-private connection line. The office line-extension connection unit 12 has a function of connecting a public line incoming call to an extension. Local line-
The dedicated line connection unit 13 has a function of connecting a public line and a dedicated line.

The equal incoming call control unit 15 has a function of evenly distributing the incoming calls of the public line to the local extension / dedicated line / public network via the dedicated line according to the call time or the number of times. Ratio incoming call control unit
Reference numeral 16 has a function of allocating incoming calls from the public line to the own-line / dedicated line / public network via the leased line at a fixed ratio depending on the call time or the number of times. The conditional call reception control unit 17 has a function of distributing to the local station extension / dedicated line / dedicated line public network according to the day of the week, the day of the month, the time of day, or specific conditions.

The principles of the equal distribution, ratio distribution, and destination distribution according to the present invention will be described below. In the case of even distribution, the station line incoming call detection & destination analysis unit 11 detects an incoming call on the public line 2, and the even line incoming call control unit 15 sets the station line-
From the called party number conversion table 14, it is converted to the called party number of the even distribution destination at that time. At that time, if the called number is an extension, the station line-extension connection unit 12 makes the extension 4 receive the call. If it is a dedicated line, the station line-dedicated line connection unit 13 connects to the dedicated line 3 corresponding to the called number and sends the called number to the dedicated line. In the case of ratio distribution, the station line incoming call detection & destination analysis unit 11 detects an incoming call on the public line 2, and the ratio incoming call control unit 16 sets the station line-
From the called party number conversion table 14, it is converted to the called party number of the ratio distribution destination at that time. At that time, if the called number is an extension, the station line-extension connection unit 12 makes the extension 4 receive the call. If it is a dedicated line, the station line-dedicated line connection unit 13 connects to the dedicated line 3 corresponding to the called number and sends the called number to the dedicated line. In the case of distribution of recipients according to conditions, the incoming call detection & destination analysis unit 11 detects an incoming call on the public line 2, and the conditional incoming call control unit 17 uses the station line-destination number conversion table 14 to determine the recipients at that time. Convert to the incoming number. At that time, if the called number is an extension, the station line-extension connection unit 12 makes the extension 4 receive the call. If it is a dedicated line, the station line-dedicated line connection unit 13 connects to the dedicated line 3 corresponding to the called number and sends the called number.

The processing flow chart of the present invention is shown in FIGS.
Shown in (1) When an incoming call is received on the public line, the incoming call on the public line is detected by the incoming call detection & destination analysis unit. (2) The processing index (PI) corresponding to the received trunk number is extracted from the station line incoming processing index table. (3) The distribution method is determined from the extracted processing index (PI). (4) If PI = 0 (general incoming call), connect to the fixed destination of public incoming call. (Publicly Known Function) (11) In the case of PI = 1 (equal distribution), the uniform incoming call control unit indexes the station line-destination number conversion table with the counter table value i and converts it into the even distribution destination numbers. (12) Update the counter table value i. (13) It is checked whether or not the connection flag F = 0. (14) If F = 0 (own station extension), the public line call and the own station extension are connected by the station-extension connecting unit. Since (15), public incoming call and local extension connection are publicly known functions. (16) If F ≠ 0 (dedicated line transmission), the station line-dedicated line connection unit connects to the leased line corresponding to the converted leased line access special number of the converted even distribution destination number, and then the leased line. The destination number is sent to. (17) and later, public incoming call and leased line connection are publicly known functions. (21) When PI = 2 (proportional distribution), the ratio incoming call control unit indexes the distribution ratio table with the counter table value i and extracts the ratio distribution index value j. Based on the extracted j and the incoming trunk number, the station line-destination number conversion table is indexed,
Convert to the ratio distribution destination number. (22) Update the counter table value i. (23) It is checked whether or not the connection flag F = 0. (24) If F = 0 (own station extension), the public line call and the own station extension are connected by the station line-extension connecting unit. After (25), public incoming call and local extension connection are publicly known functions. (26) If F ≠ 0 (dedicated line transmission), the station line-dedicated line connection unit connects to the dedicated line corresponding to the converted dedicated line access special number of the proportional distribution destination number, and then the dedicated line The destination number is sent to. After (27), public incoming call and leased line connection are publicly known functions. (31) In the case of PI = 3 (condition distribution), the conditional call receiving control unit indexes the station line called number condition conversion table by the condition (date and time type, time zone type) and converts it into the called number at that time. (32) Update the counter table value i. (33) It is checked whether or not the connection flag F = 0. (34) If F = 0 (own station extension), the public line call and the own station extension are connected by the station line-extension connecting unit. After (35), public incoming call and local extension connection are publicly known functions. (36) If F ≠ 0 (dedicated line transmission), the station line-dedicated line connection unit connects to the leased line corresponding to the converted leased line access special number of the condition distribution destination number, and then the leased line The destination number is sent to. (37) and later, public incoming call and leased line connection are publicly known functions.

[0012]

FIG. 6 shows an embodiment of a connection configuration diagram of the present invention. In the figure, A station, B station, C station, D station and E station show public network exchanges, and F station, G station, H station and I station show private branch exchanges. Subscribers a, b, c, d, and e of A station, B station, C station, D station, and E station receive calls to F station by toll-free dialing, and G station, H station, and I station are dedicated to F station. Connected by a wire network. Subscribers f, g, h, i are F station, G station, H station, I
Indicates the extension subscribers of the station.

Here, the subscriber e is exclusively assigned from the private branch exchange G.
This is an example of a publicly connectable public network subscriber, in which subscribers a to d collectively receive calls at station F, and destinations can be distributed to e and g to i by public and private connection. The public network and the leased line network are all composed of analog lines. FIG. 7 shows an example of numbers in the connection configuration of FIG.

In FIG. 7, (a) is the assumption of the numbering plan,
(B) shows the destination number structure of the station line-destination number conversion table. Under the assumption of the numbering plan in (a), the toll station numbers and extension numbers are the toll station numbers 114, 115, 116, 117 of stations F, G, H, and I, and the extension numbers 222, 3
33,444,555, and the leased line access special number of station F is 7. If the toll-free number received at station F is 120-123456, 0 from subscribers a to e
Dial 120-123456 to reach station F. Assume e's subscriber number is 044-876-5432.

The destination number configuration (b) of the station line-destination number conversion table for automatically converting the call received from the public network to the F station to the telephone number according to the distribution destination at the F station is as follows. Become. The destination F station extension f is 222, and the G station extension g is 7-1.
15-333, the public subscriber e via G station is 7-115-0
448765432, H station extension h is 7-116-44
The extension number i of station I is 7-117-555. However, -is not present in the actual data. (Embodiment 1) FIG. 8 shows an embodiment of the even distribution function according to the number of connections. In the figure, 18 is an office line incoming index table, 19
Indicates a counter table, and the same numbers as in the principle configuration diagram of FIG. 1 indicate the same device names. Since the public network incoming call, public network-extension connection, and public network-dedicated line connection are publicly known functions, description thereof will be omitted, and an explanation will be given centering on equal distribution and public exclusive connection analysis.

An incoming call from the public line is detected by the incoming call line & destination analysis unit 11, and an incoming call line processing index table
If it is determined from 18 that the distribution is even (PI = 1), the control is passed to the uniform incoming call control unit 15.

The uniform incoming call control unit 15 indexes the station line-destination number conversion table 14 by the trunk number + i (counter value) and converts it to the incoming call number of the uniform distribution destination at that time. At that time, if the called number is an extension (F = 0), the station line-extension connection unit 12 makes the extension 4 receive the call. If it is a dedicated line (F = 1), it is connected to the dedicated line 3 by the station line-dedicated line connection unit 13,
The destination number obtained from the office line-destination number conversion table 14 is transmitted.

[0018] The destination number (the destination number of the distribution destination) is the special line access special number + dedicated line number + extension number in the case of public exclusive connection, and the private line access special number + dedicated line station number in the case of public exclusive connection + Public network subscriber number, and extension number for extension connection.

As another embodiment, received digits (dial-in) and sub-address (ISD) sent from the public network
Even call reception by N) is possible. Further, not only the number of connections evenly distributed, but also the distribution of call times may be equally distributed. (Embodiment 2) FIG. 9 shows an embodiment of a ratio distribution function according to the number of connections. In the figure, 18 is an office line incoming call processing index table, 19 is a counter table, 20 is a distribution ratio table, and the same numbers as in the principle configuration diagram of FIG. 1 indicate the same device names. Since the public network incoming call, public network-extension connection, and public network-dedicated line connection are known functions, description thereof will be omitted, and ratio distribution and public-private connection analysis will be mainly described.

An incoming call from the public line is detected by the incoming call line & destination analysis unit 11, and an incoming call line processing index table
If it is determined from 18 that the distribution is equal (PI = 2), the control is passed to the ratio incoming call control unit 16.

The ratio incoming call control unit 16 indexes the distribution ratio table 20 by the counter table value 19 and the trunk number to obtain the ratio distribution index value j, and then the station line-destination number conversion table 14
Is indexed by j and the trunk number, and converted into the called number of the ratio distribution destination at that time. The subsequent process is the same as that of the first embodiment. In the distribution ratio table 20, the index value j of the called number conversion is set so that the ratio can be distributed corresponding to the trunk.

As another embodiment, received digits (dial-in) and sub-address (ISD) sent from the public network
The ratio call reception by N) is possible. Further, not only the connection number ratio distribution but also the ratio distribution according to the call time may be used. (Embodiment 3) FIG. 10 shows an embodiment of the condition distribution function according to the number of connections. In the figure, reference numeral 18 is a station line incoming call processing index table, 21 is a station line-destination destination condition conversion table, and the same numbers as in the principle configuration diagram of FIG. 1 indicate the same device names. Since the public network incoming call, public network-extension connection, and public network-dedicated line connection are known functions, description thereof will be omitted, and description will be focused on condition distribution and public exclusive connection analysis.

The incoming call from the public line is detected by the incoming call line & destination analysis unit 11, and the incoming call line processing index table
When it is judged from the condition distribution (PI = 3) from 18, the control is transferred to the condition incoming control unit 17.

The conditional call reception control unit 17 indexes the station line-destination destination condition conversion table 21 by conditions (date and time type, time zone type), and converts it into the called number of the distribution destination at that time. For example, the date and time types include weekdays, holidays, Sundays and Saturdays, and the time zone types include daytime, nighttime, midnight, and early morning types. The subsequent process is the same as that of the first embodiment.

As another embodiment, received digits (dial-in) and sub-address (ISD) sent from the public network
It is possible to make a conditional call according to N). Other than the date and time type and the time zone type, they may be dispersed under special name conditions.

[0026]

As described above, according to the present invention,
In the exchange, the public and private connection destinations are the station line, received digits,
When destinations are uniquely determined by subaddresses, etc., it is possible to distribute evenly or at a fixed rate, or to easily schedule distribution by date, day, and time of day, which contributes to expanding the scope of public and private connections. Is big.

[Brief description of drawings]

FIG. 1 is a diagram showing the principle configuration of the present invention.

FIG. 2 is a processing flowchart (1) of the present invention.

FIG. 3 is a processing flowchart of the present invention (No. 2)

FIG. 4 is a processing flowchart of the present invention (part 3)

FIG. 5 is a processing flowchart (4) of the present invention.

FIG. 6 is an embodiment of a connection configuration diagram of the present invention.

FIG. 7 shows an example of numbers in the connection configuration of the embodiment.

FIG. 8: Example of equal distribution function of the present invention

FIG. 9: Example of ratio distribution function of the present invention

FIG. 10: Example of condition distribution function of the present invention

[Explanation of symbols]

 1 Switch 2 Public line 3 Private line 4 Own station extension 11 Station line incoming call detection & destination analysis section 12 Station line-extension connection section 13 Station line-dedicated line connection section 14 Station line-destination number conversion table 15 Even call control Part 16 Ratio incoming call control unit 17 Conditional incoming call control unit 18 Station line incoming call processing index table 19 Counter table 20 Allocation ratio table 21 Station line-destination condition conversion table

Claims (3)

[Claims] 1. Public network-dedicated line (public-dedicated), leased line-public network (dedicated-public), public network-dedicated line-public network (public-dedicated-public)
In a switch equipped with a public connection function, if a call received from the public network is uniquely determined by the destination line, received number, subaddress, etc., an extension call or a public call is received depending on the line / received number / subaddress. A line-to-destination number conversion table that indicates whether it is a dedicated connection and also stores the called number, and a function that constantly monitors the public line, detects incoming calls, and analyzes whether the incoming call is a public-private line or not. Station line incoming detection & destination analysis unit, which controls the station line-extension line connection unit that has the function of connecting the public line incoming call to the extension line, and station line-dedicated line connection unit that has the function of connecting the public line and the private line. It is equipped with a uniform incoming call control unit that has a function to evenly distribute incoming calls on the public line to the local extension / dedicated line / public network via the dedicated line according to the call time or the number of calls. Change the called number evenly Distributor distribution method for public / private connections, characterized by having a uniform distribution function that can be exchange-controlled. 2. Public network-dedicated line (public-dedicated), dedicated line-public network (dedicated-public), public network-dedicated line-public network (public-dedicated-public)
In a switch equipped with a public connection function, when a call received from the public network is uniquely determined by the line, received digits, subaddress, etc., the call destination is compared to the callee number depending on the call time or the number of calls. A method of distributing call destinations during public / private connection, characterized by having a fixed ratio distribution function that can be converted and controlled by. 3. An exchange having a public network-dedicated line (public-dedicated) and public network-dedicated line-public network (public-dedicated-public) connection function, in which a call received from the public network is connected to a local line, When the destination is uniquely determined by the received number, subaddress, etc., the characteristic is that the destination is conditionally distributed to the destination number according to the day of the week, the day of the month, the time of the day, or a schedule predetermined according to specific conditions. Recipient distribution method for public and private connections.