KR100900814B1 - Local network automatic call forwarding device and method - Google Patents

Abstract

According to the present invention, when a subscriber of an arbitrary exchange moves a local network and joins another exchange, the exchange exchange generates a registered information between the local networks and informs the registered information of the existing exchange. This is to register a subscriber and to automatically transfer the call when another subscriber calls a subscriber who has moved to another local area network. In order to realize the above object, the present invention is composed of a local network mobile subscription unit, automatic call forwarding preparation unit, and automatic call forwarding performing unit.

According to the present invention, when the automatic call forwarding between the local networks according to the subscriber's mobile subscription is serviced in the network interworking multiple unit regional networks configured as the exchange, the subscriber receives the automatic call forwarding service and the operator automatically calls the call. It is possible to effectively solve the problem that the operator has to manually input the mobile subscriber's mobile information to the exchange for switching.

Description

Apparatus and method for automatic call forwarding between one unit network and other unit network}

1 is a configuration diagram of an exchanger on which the present invention is mounted.

2 is an interlocking network diagram between unit local area networks to which the present invention is applied.

Figure 3 is an overall configuration of the present inventors local area automatic call forwarding device

Figure 4 is a detailed configuration of the present inventors local manganese mobile subscription.

Figure 5 is a detailed configuration of the present invention automatic call forwarding preparation unit.

Figure 6 is a detailed configuration of the present invention automatic call forwarding execution unit.

Figure 7 is a flow chart of the present invention local area automatic call forwarding method.

8 is a detailed flowchart of a method for subscribing mobile communication between local networks according to the present invention.

9 is a detailed flowchart of the present invention for the automatic call forwarding preparation method.

10 is a detailed flowchart of a method for performing automatic call forwarding according to the present invention.

11 is a data structure of an automatic call forwarding table stored in the memory unit.

The present invention relates to the field of providing a convenient, reliable, and efficient service to subscribers by adding a call processing service function at the exchange.

Conventionally, subscriber A moves from local network 1 to local network 2 when a local area network configured as a node exchanger is used by prefixing a subscriber number with a designated local network number when processing a call between local networks. In order to call subscriber A to another subscriber in the city local area 1 region, there was a problem that the subscriber could not be called unless the mobile network number was previously known.

In addition, in the network in which a unit local area network configured as a node exchanger is connected in the related art, subscriber A moves from the local network 1 to the local network 2 when the designated local network number is prefixed to the subscriber number in the call processing between the local networks. At the time of joining, the operator notifies the fact that another subscriber has moved to another local network when subscriber A calls subscriber A by manually inputting and operating the information that the operator knows in advance to transfer the call to subscriber A's mobile subscription. In the case of processing, it provides the call processing by providing the call forwarding type of service function. In order to solve the problems of the prior art described above, the operator must know all the information about the subscriber moving to another local network in advance, and the operator manually inputs the mobile subscriber's mobile information to the exchange for automatic call transfer. There was a problem that must be done.

The technical problem to be achieved by the present invention is to identify the existing local network information of the subscriber to the node exchange when the subscriber between the local network mobile subscription to inform the existing local network information to the existing local network to the existing local network information in the existing local network To provide a device and method for automatically registering a call forwarding using the information, and to provide a device and method for making a call using an existing phone number even if the existing network subscriber does not know the information of the subscriber. have.

In the local network automatic call forwarding device according to the present invention for solving the above problems, if any subscriber A requests to leave the switch 1 of any local network 1, and requests to join the switch 2 of the other local network 2, When the location information for the switch 1 is transmitted to the switch 2, the switch between the local network mobile subscription unit that generates mobile subscriber information of the subscriber A in the switch 2, the mobile subscriber information of the subscriber A of the local network mobile subscription unit in the exchange 2 When the transfer from the 2 to the switch 1, the automatic call forwarding preparation unit for setting up the automatic forwarding table in the switch 1 based on the mobile subscriber information of the subscriber A transmitted, when another subscriber B calls the subscriber A The subscriber A is a mobile subscriber at the exchange 1 on the basis of the automatic forwarding table of the automatic forwarding preparation unit. If it is determined that the subscriber B transfers the mobile station A's mobile information extracted from the auto-forwarding table, the subscriber B requests the exchange 2 to search for the subscriber A, and the exchange 2 performs the search. And an automatic call forwarding performing unit for making a call connection with the switch 1. According to the present invention, the method for the automatic call forwarding between the local networks includes location information on the switch 1 when any subscriber A requests to leave the switch 1 of the local network 1 and requests to join the switch 2 of the other local network 2. When the S2 is transmitted to the switch 2, generating the mobile subscription information of the subscriber A in the exchange 2, and when the mobile subscription information of the subscriber A is transmitted from the switch 2 to the switch 1, Establishing a call forwarding table at the switch 1 based on mobile subscription information, and when another subscriber B calls the subscriber A, the subscriber A at the switch 1 based on the call forwarding table is a mobile subscriber. If it is determined to be, and transmits the subscriber A's mobile information extracted from the automatic call forwarding table to the subscriber B Side, the subscriber B requests a search for the subscriber A to the MSC 2, the search, and in the second switching system, and a step of said exchange 1 and the call connection.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an exchanger on which the present invention is mounted.

The central processing unit 11 controls the switching of calls and the overall operation of the exchange to provide various services to the user. The memory unit 12 stores programs and initial service data of the central processing unit 11 for performing basic calls and various functions, and temporarily or permanently stores data processed by the central processing unit 11. . The memory unit 12 includes a ROM for storing program and service data and a RAM for temporarily or permanently storing data generated during program execution. An algorithm corresponding to the present invention is stored in the ROM to drive the exchange. The clock circuit 13 generates current time data as a clock chip IC and outputs it to the central processing unit 11. The switching circuit 14 switches various tone and voice data under the control of the central processing unit 11. The subscriber circuit 15 supplies a call current to the telephones STN 1 to STN n under the control of the central processing unit 11, and interfaces the signals between the telephones STN 1 to STN n and the switching circuit 14. The ring generator 16 generates a ring signal and supplies it to the subscriber line. The tone generator 17 generates various tones under the control of the central processing unit 11 and outputs them to the switching circuit 14. The trunk line circuit 18 occupies the trunk line under the control of the central processing unit 11 to form a call loop with the trunk line, and interfaces a signal between the trunk line and the switching circuit 14. The trunk line refers to a line connecting the trunk line circuit 18 and the trunk line exchange period. A dual tone multi-frequency (DTMF) receiver 19 analyzes a DTMF signal input from the switching circuit 14, converts the DTMF signal into a digital signal, and outputs the digital signal to the central processing unit 11. Here, the DTMF signal input to the DTMF receiver 19 by the switching circuit 14 becomes a telephone number where the trunk line subscribers STN 1 to STN n are generated. The DTMF transmitter 20 converts the digital data output from the central processing unit 11 into a DTMF signal and outputs it to the switching circuit 14.

2 is an interlocking network diagram between unit local area networks to which the present invention is applied.

Figure 2 is a subscriber network between the unit local network 1 (21) and the unit local network 2 (21) configured on the basis of the exchange is equipped with the present invention at the switch 7 (211) of the local network 21 the local network When the mobile station 2 (21) moves to the switch 15 (221), the interworking relationship between the local networks is shown. The present invention is applied to an exchange period call access belonging to another local network in case of subscribing to the local network. The call connection between the switch 8 (212) belonging to the local network 1 such as the switch 7 (211) of the local network 1 is based on the existing call processing method.

Figure 3 is an overall configuration of the present inventors local area automatic call forwarding device

The regional inter-network automatic call forwarding device is composed of a local network between the mobile subscription unit 31, the automatic call forwarding preparation unit 32, and the automatic call forwarding performing unit 33.

The local network mobility subscription unit 31, if any subscriber A requests to leave the switch 1 of any local network 1, deletes the subscriber A's registration and leaves the subscription, and then switches to the switch 2 of the other local network 2. If requested, when the subscriber 2 adds the registration of the subscriber A to the switch 2, the location information of the switch 1 is transmitted to the switch 2. The subscriber A withdraws from the switch 1 and joins the switch 2 according to an existing process. Transmitting the location information for the switch 1 to the switch 2 is the number of information when the subscriber A wants to send the information of the local network 2 newly registered and the switch 2 information to the switch 1 of the existing local network 1 described above. Used to locate Shinji. The location information includes location information of a local network and narrow location information of a switch. When the switch 2 receives the location information of the switch 1, the switch 2 generates the mobile subscription information of the subscriber A. The mobile subscription information includes location information of a newly subscribed local network 2 and location information of a switch 2. Through the above process, the subscriber's mobile network subscription is completed.

The automatic call forwarding preparation unit 32 transmits the mobile subscription information of the subscriber A of the local area mobile subscription to the switch 1 from the switch 2. The above transmission uses the CCS signal processing method to transmit information. Common Channel Signaling (CCS), also known as out-channel (channel separation) signaling, is a method of transporting packet information necessary for accessing multiple call lines using a dedicated signal link. When the exchange 1 receives the mobile subscription information of the subscriber A, the exchange 1 establishes an auto forwarding table based on the transmitted subscriber A's mobile subscription information. In the automatic forwarding table, the mobile subscribers' mobile information (location information of mobile subscriber's local network and exchange) is recorded in a table format. Through the above-described process, in the case of a mobile network subscription to the local network to complete the preparation for the service of the automatic call forwarding.

When the other subscriber B calls the subscriber A, the automatic call forwarding execution unit 33 determines whether the subscriber A is the mobile subscriber on the exchange 1 based on the automatic call forwarding table of the automatic call forwarding preparation unit. As a result of the determination, when it is determined that the subscriber A is a mobile subscriber, the subscriber B transmits the mobile subscriber's mobility information extracted from the auto-dial transfer table. The transmission of the mobility information is a process of conveying to the subscriber B that the subscriber A is mobile subscribed from the switch 1 to the switch 2 in a CCS signal processing scheme. As described above, the mobile information includes location information of the local network to which the mobile subscribes and the exchange. When the subscriber B receives the mobility information of the subscriber A, the subscriber B requests the switch 2 to search for the subscriber A. Since the subscriber B can know the location of the local network and the exchange to which the mobile is subscribed by receiving the mobile A's mobile information, the subscriber B can request the flood search between the local networks to the switch 2 of the local network 2. do. When the switch 2 discovers that the subscriber A is registered with the switch 2, the switch 2 makes a call connection with the switch 1 belonging to another local area network.

If the subscriber A determines that the subscriber A is a mobile subscriber on the basis of the automatic forwarding table of the automatic forwarding preparation unit 32, and determines that the subscriber A is not a mobile subscriber, the automatic forwarding The switch performing unit 33 makes a call connection with another switch 3 of the local network 1 such as the switch 1. This is due to the existing call processing method.

Figure 4 is a detailed configuration of the local network between the mobile subscriber to the local network between the automatic call forwarding device.

The local manganese mobile subscription unit 31 includes a local network leaver 41, a local network subscriber 42, a local network location information transmitter 43, and a mobile subscription information generator 44.

The local network withdrawal unit 41 deletes the registration of the subscriber A from the exchange 1 when the subscriber A requests withdrawal from the switch 1. The local area network subscription unit 42 adds the registration of the subscriber A to the exchange 2 when requesting subscription to the switch 2. The local network location information transmitter 43 transmits the location information of the switch 1 to the switch 2 when the registration of the subscriber A is deleted at the switch 1 and added to the switch 2. The mobile subscription information generation unit 44 generates the mobile subscription information of the subscriber A in the exchange 2 when the location information of the switch 1 is transmitted from the local network location information transmitter 43.

5 is a detailed configuration of the automatic call forwarding preparation unit of the present inventors local area automatic call transfer device.

The automatic call forwarding preparation unit 32 is composed of a mobile subscription information transmission unit 51 and an automatic call forwarding table construction unit 52. The mobile subscription information transmitting unit 51 transmits mobile subscriber information of the subscriber A of the local area mobile subscription unit 31 from the switch 2 to the switch 1. The automatic call forwarding table constructing unit 52 constructs the automatic forwarding table at the exchange 1 based on the mobile subscription information of the subscriber A transmitted from the mobile subscription information transmitting unit.

Figure 6 is a detailed configuration of the automatic call forwarding performing unit of the present inventors local area automatic call forwarding device.

The automatic call forwarding unit is composed of a subscriber calling unit 61, a mobile subscriber determining unit 62, a mobile information transmitting unit 63, and a subscriber searching unit 64. The subscriber calling section 61 is a device for another subscriber B to call the subscriber A. Usually by dial on the phone. When the subscriber A is called by the subscriber caller 61, the mobile subscriber determination unit 62 moves the subscriber A in the exchange 1 based on the auto-call forwarding table of the auto-call forwarding preparation unit 32. Determine if you are a subscriber. The mobile information transmitter 63 transmits, to the subscriber B, the mobile information extracted from the automatic call forwarding table to the subscriber B when the mobile subscriber determination unit 62 determines that the mobile subscriber A is the mobile subscriber. The subscriber retrieval unit 64 requests the subscriber B to retrieve the registration of the subscriber A from the switch 2 when the mobile information transfer unit 63 transfers the mobile subscriber A's mobile information to the subscriber B. If so, the search is performed in the exchange 2. When the registration of the subscriber A is retrieved by the subscriber retrieval unit 64, the call connection unit 65 makes a call connection with the exchange 2. As a result, the subscriber A and the subscriber B are connected to each other to be in a state capable of communicating.

Figure 7 is a flow chart of the present invention local area automatic call forwarding method.

If any subscriber A requests withdrawal from exchange 1 of any local area network 1 and requests subscription to exchange 2 of another local area network 2, if the subscriber A sends location information about the exchange 1 to the exchange 2, the exchange 2 Generates the subscriber A's mobile subscription information (71) and transmits the subscriber A's mobile subscription information from the switch 2 to the switch 1, the switch 1 based on the transmitted subscriber A's mobile subscription information; If the other party B calls the subscriber A, and the other party B calls the subscriber A, the subscriber B determines that the subscriber A is the mobile subscriber based on the automatic forwarding table. When the subscriber A transfers the mobile information extracted from the auto forwarding table to the subscriber A, the subscriber B sends the subscriber A to the switch 2. Request for the search, and the search in the second switching system and the exchange 1 and the call connection (73).

8 is a detailed flowchart of a method for subscribing to a mobile communication between local networks in the present invention.                     

When the subscriber A requests to withdraw from the exchange 1, the subscriber 1 deletes the registration of the subscriber A at the exchange 1 (81). When the subscriber A requests to join the exchange 2, the subscriber A adds the registration of the subscriber A to the exchange 2; (82), if the registration of the subscriber A is deleted at the switch 1 and added to the switch 2, the position information for the switch 1 is transmitted to the switch 2 (83), and the position information for the switch 1 Is transmitted, the switch 2 generates the mobile subscription information of the subscriber A (84).

9 is a detailed flowchart of a method for preparing a call forwarding method in the present invention.

The subscriber A's mobile subscription information is transmitted from the switch 2 to the switch 1 (91), and an automatic forwarding table is established at the switch 1 based on the transmitted subscriber A's mobile subscription information (92).

10 is a detailed flowchart of a method for performing an automatic call forwarding in the present invention.

Another subscriber B calls the subscriber A (101), and when the subscriber A is called, it is determined at the switchboard 1 whether the subscriber A is a mobile subscriber (102) based on the auto-forwarding table, and the subscriber A If is determined to be a mobile subscriber, and transmits the subscriber A's mobile information extracted from the automatic call forwarding table to the subscriber B (103), if the subscriber A's mobile information is transmitted to the subscriber B, the subscriber B Requests a search for the registration of the subscriber A with the switch 2 (104), the search is made at the switch 2 (105), and if the registration of the subscriber A is retrieved, the switch 2 and the switch 1 A call connection is made (106).

If it is determined that the subscriber A is not a mobile subscriber, a call connection is made with the switch 1 and the other switch 3 of the local area network 1 (107).

11 is a data structure of an automatic call forwarding table stored in the memory unit.

In FIG. 11, when subscriber B calls subscriber A to 745-0084 of local network 1, the automatic forwarding table includes 745-0084 of local network 2 corresponding to 745-0084 (this number is arbitrary, May be designated as a number.), So that the subscriber B is informed of the subscriber network 745-0084 of the local network 2 to which the subscriber A is mobile, so that the subscriber B is connected to the subscriber 745-0084 of the local network 2. You can request Flood Search for A. As a result of the Flood Search, if the subscriber A is found to be registered, the calling subscriber B and the mobile subscriber A can make a call.

Meanwhile, the above-described embodiments of the present invention can be written as a program that can be executed in a computer, and can be implemented in a general-purpose digital computer that operates the program using a computer-readable recording medium.

In addition, the structure of the data used in the above-described embodiment of the present invention can be recorded on the computer-readable recording medium through various means.

The computer-readable recording medium may be a magnetic storage medium (for example, a ROM, a floppy disk, a hard disk, etc.), an optical reading medium (for example, a CD-ROM, DVD, etc.) and a carrier wave (for example, the Internet). Storage media).

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

According to the present invention, when the automatic call forwarding between the local networks according to the subscriber's mobile subscription is serviced in the network interworking multiple unit regional networks configured as the exchange, the subscriber receives the automatic call forwarding service and the operator automatically calls the call. It can effectively solve the problem that the operator must manually input the mobile subscriber's mobile information to the exchange for the switching, and the subscribers and operators of the exchange can avoid the inconvenience of operation, the information grasp, and the waste of information input. It is expected that the subscriber will be able to receive more convenient, improved and reliable service from the exchange.

Claims (12)

When receiving the withdrawal request for switch 1 of any local network 1 and the request for joining switch 2 of another local network 2 from any subscriber A, the switch 1 transmits the location information for the switch 1 to the switch 2. A local network mobile subscription unit for generating mobile subscriber information of the subscriber A in the exchange 2; When the switch 2 transmits the mobile subscription information of the subscriber A of the mobile subscriber station of the local area network to the switch 1, an automatic call forwarding establishment of an automatic forwarding table at the switch 1 based on the transmitted mobile subscriber information of the subscriber A; Conversion preparation unit; In the case where another subscriber B calls the subscriber A, when the switch 1 determines that the subscriber A is a mobile subscriber based on the automatic forwarding table of the automatic forwarding preparation unit, the automatic forwarding table is transmitted to the subscriber B. When the subscriber A extracts the mobile information extracted from the subscriber B, the subscriber B requests the switch 2 to search for the subscriber A, the switch 2 performs the search for the subscriber A according to the request, and the switch Automatic call forwarding device between the local network, characterized in that it comprises an automatic call forwarding performing unit for making a call connection with 1. 2. The subscriber of claim 1, wherein the APC is not a mobile subscriber in the exchange 1 based on the APC table of the APC preparation unit when another B calls the A subscriber. And if it is determined that the call is connected to the switch 1 and the other switch 3 of the local network 1, the call forwarding device between the local network. According to claim 1, The local inter-network transfer subscription unit A local network withdrawal unit which deletes the registration of the subscriber A in the exchange 1 when the subscriber A requests withdrawal from the switch 1; A local network subscription unit for adding the registration of the subscriber A to the switch 2 when requesting to the switch 2; A local network location information transmitter for transmitting the location information of the switch 1 to the switch 2 when the registration of the subscriber A is deleted at the switch 1 and added to the switch 2; When the location information for the switch 1 is transmitted from the location information transmitting unit between the local network, the local network automatic call transfer comprising a mobile subscription information generation unit for generating the mobile subscription information of the subscriber A in the switch 2 Device. According to claim 1, wherein the automatic call forwarding preparation unit A mobile subscription information transmitter for transmitting the mobile subscription information of the subscriber A of the local network mobile subscription unit from the switch 2 to the switch 1; And an automatic forwarding table construction unit for establishing an automatic forwarding table at the switch 1 based on the mobile subscription information of the subscriber A transmitted from the mobile subscription information transmitting unit. According to claim 1, wherein the automatic call forwarding execution unit A subscriber calling unit for another subscriber B to call the subscriber A; A mobile subscriber determination unit for determining whether the subscriber A is a mobile subscriber in the exchange 1 on the basis of an automatic call forwarding table of the automatic call forwarding preparation unit when the subscriber A is called from the subscriber call unit; A mobile information transmission unit for transmitting the mobile information of the subscriber A extracted from the automatic call forwarding table to the subscriber B when the mobile subscriber determination unit determines that the mobile subscriber A is the mobile subscriber; When the mobile B transmits the subscriber A's mobile information to the subscriber B, when the subscriber B requests the switch 2 to search for the registration of the subscriber A, the search performed by the switch 2 is performed. Search unit; And when the registration of the subscriber A is retrieved from the subscriber retrieval unit, the switch 2 and the switch 1 include a call connection unit for making a call connection. (a) when receiving a withdrawal request for switch 1 of any local network 1 and requesting to join switch 2 of another local network 2 from any subscriber A, the switch 1 sends the location information for the switch 1 to the switch. Generating, at the exchange 2, the subscriber A's mobile subscription information; (b) when the switch 2 transmits the subscriber A's mobile subscription information to the switch 1, constructing an automatic forwarding table at the switch 1 based on the transmitted subscriber A's mobile subscription information; (c) in the case where another subscriber B calls the subscriber A, when the switch 1 determines that the subscriber A is a mobile subscriber, the subscriber B extracts the subscriber B from the automatic forwarding table. When the subscriber A's mobile information is transmitted, the subscriber B requests the switch 2 to search for the subscriber A, the switch 2 performs the search for the subscriber A according to the request, and Local area automatic call forwarding method comprising the step of making a call connection. 7. The method of claim 6, wherein the step (c) is performed when the other subscriber B calls the subscriber A, and when the switch 1 determines that the subscriber A is not a mobile subscriber, based on the auto forwarding table, A call forwarding method according to claim 1, wherein the call is connected to the switch 1 and the other switch 3 of the local network 1. The method of claim 6, wherein step (a) (a1) if the subscriber A requests withdrawal from the switch 1, deleting the registration of the subscriber A at the switch 1; (a2) adding a registration of the subscriber A to the switch 2 when requesting to join the switch 2; (a3) if the registration of the subscriber A is deleted at the switch 1 and added to the switch 2, transmitting the location information for the switch 1 to the switch 2; (a4) when the location information for the switch 1 is transmitted, generating the mobile subscription information of the subscriber A in the switch 2; The method of claim 6, wherein step (b) (b1) transmitting the subscriber A's mobile subscription information from the switch 2 to the switch 1; (b2) establishing an automatic forwarding table at the exchange 1 based on the transmitted subscriber A's mobile subscription information. The method of claim 6, wherein step (c) (c1) another subscriber B calling the subscriber A; (c2) when the subscriber A is called, determining whether the subscriber A is a mobile subscriber at the exchange 1 on the basis of the automatic call forwarding table; (c3) if it is determined that the subscriber A is a mobile subscriber, transmitting the subscriber A's mobility information extracted from the automatic call forwarding table to the subscriber B; (c4) if the subscriber B requests the subscriber B to search for the registration of the subscriber A when the subscriber B's movement information is transmitted to the subscriber B, performing the search at the switch 2; (c5) when the registration of the subscriber A is detected, the switch between the switch 2 and the switch 1, comprising the step of making a call connection. In the case where a subscriber A moves to a switch 2 of another local network 2 from a switch 1 of a local network 1, the apparatus for providing an automatic call forwarding service, the switch 1 of the local network 1 for the subscriber A And a data structure of an automatic forwarding table comprising information of the switchboard 2 of the local area network 2 corresponding to the information. A recorded medium on which a computer program comprising the method of any one of claims 6 to 10 can be read and executed on a computer.

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