KR20010103408A - Method for processing transit call with privileged goverment network using ISND User Part in Switching System - Google Patents

Abstract

The present invention relates to a method for processing a relay call with a separate communication network using an ISD die user unit in an exchange, and more particularly, in an exchange configured to process a relay call according to a service logic program of a separate communication network using an ISUP relay call function in an exchange. The present invention relates to a relay call processing method with an affiliated communication network using an IS diene user unit.

Conventionally, since ISUP relay call processing for a separate communication service cannot be performed using an ISUP relay call, there is a problem in that new reserved communication service logic should be applied to ISUP relay call processing.

The present invention does not affect basic ISUP relay call processing at the exchange and queries the subscriber's specific communication service authentication to the separate communication network using the corresponding relay call and, when the corresponding service is authenticated, relays according to the service logic program of the separate communication service. This has the advantage of performing call processing.

Description

Method for processing transit call with a separate communication network using ISDN user part at exchange {Method for processing transit call with privileged goverment network using ISND User Part in Switching System}

The present invention relates to a method for processing a relay call with a separate communication network using an ISD die user unit in an exchange, and more particularly, in an exchange configured to process a relay call according to a service logic program of a separate communication network using an ISUP relay call function in an exchange. The present invention relates to a relay call processing method with an affiliated communication network using an IS diene user unit.

In general, the modern society should be able to satisfy various service needs of telecommunication users with the provision of prompt information as the beginning of the information society that can be compared to the industrial revolution. To this end, voice and non-voice services can be extensively supported from one network to various user network interfaces, which is the basis for the information society, digital access for information transmission, common line signal access, and multi-purpose functions of the user network interface. Exchange networks such as the ISDN (Intergrated Service Digital Network) have been launched.

As such, the switching network providing voice and non-voice services may be connected to the regional exchanges 11-1 and 11-2 in which the general subscribers 13-1 and 13-2 are accommodated, as shown in FIG. It is provided with a local relay switch 12 for interconnecting the local exchange (11-1) (11-2) that are separated from each other locally.

When the general subscriber 13-1 requests the ISUP relay call service 14-1, the first local exchange 11-1, which is the originating exchange, and the destination side general subscriber 13-2, which is the destination exchange, exist. In order to establish a call between two regional exchanges (11-2), an ISUP relay call must be processed at the relay exchange (12).

As described above, when the general subscriber 13-1 requests the ISUP relay call service 14-1, the process of processing the ISUP relay call in the corresponding relay switch 12 is performed as shown in FIG. . In this description, the ISUP signal and the internal signal of the exchange are not separately described.

First, a first local exchange 13-1, which is a first station, for example, an originating exchange, that the UPC block, which is the ISUP relay call control software block of the relay switch 12, requests a call connection to the relay switch 12, is called. Or receiving an IAM message (Initial Address Message), which is an ISUP signal including call connection information, for example, route information and a called number, from another local relay exchange (not shown).

Here, the UPC block is composed of pure software and performs the incoming call, the outgoing call, and the transit call control function by ISUP. The UPC block manages the call state and manages the call flow and message signaling procedures. To control. In addition, the UPC block receives an internal message from an ISUP message or a neighboring block to perform actual call processing, and the generated internal message or ISUP message is a related block or an MTP (Message Transfer Part) through an UDN (ISDN User Part Interface) block. ), And each process generates a parallel processing structure to generate and process a related processing process each time a relay call occurs.

In the relay exchange 12 receiving the IAM message from the first station, the UPC block examines the idleness of the information included in the IAM message, and if the information is valid, it is generated for each ISUP incoming call and is received. An incoming routine is started by creating an UPC_in block 21, which is an ISUP incoming call control process that is destroyed after processing from the start to the end of the call. The UPC_in block 21 generated by the UPC block translates the called number included in the IAM message, and if the subscriber of the called number is present in a foreign exchange, such as, for example, the second local exchange 11-2, The RCO block (Routing Control Software block) 22 requests routing to the corresponding foreign exchange. Accordingly, the RCO block 22 searches for a route that can be connected to the called party subscriber existing in the other station using the called number information transmitted from the UPC_in block 21, and requests the occupied relay line to the corresponding other station as the UPC block. do. In the UPC block that is requested to occupy the outgoing line to the other station exchange, the UPC_out block 23, which is generated every time the ISUP outgoing call occurs, is processed after the processing from the start to the end of the ISUP outgoing call, is destroyed. The UPC_out block 23 generated by the UPC block occupies the idle relay line existing in the route with the outgoing route information, and then occupies the outgoing line to the foreign exchange with the UPC_in block 21. Notify. Thereafter, the UPC_out block 23 transmits an IAM message to a second power station, for example, a second local exchange 11-2, in which a called party subscriber exists, and notifies that the IAM message has been received from the second power station. Transition to the ACM message reception waiting state for receiving an ACM message (Address Complete Message).

When the UPC_out block 23 receives the ACM message from the second superpower, the UPC_out block 23 notifies the UPC_in block 21 that the ACM message has been received from the second superpower, and then receives the destination subscriber ( Transition to the ANM message reception waiting state for receiving the ANM message (Answer Message), the response message of 13-2). The UPC_in block 21, which has been informed of the reception of the ACM message from the UPC_out block 23, transmits the ACM message to the first station, and transitions from the UPC_out block 23 to the waiting state for the reception notification of the subscriber's ANM message. .

On the other hand, when the corresponding UPC_out block 23 receives the ANM message from the second power station, the UPC_out block 23 notifies the UPC_in block 21 that the ANM message has been received, and then the calling / receiving side subscriber 13-1. (13-2) Transition to a state during a conversation that can be connected. In the UPC_out block 23, the UPC_in block 21 that is notified of the reception of the ANM message from the second power station transmits the ANM message to the first power station, and then transitions to the busy state.

However, when a separate telecommunication network such as an ARS system and an authentication server is connected to the relay switch 12, the corresponding relay switch 12 must incorporate new separate telecommunication service logic to process the ISUP relay call.

As described above, in the related art, since the ISUP relay call processing for the separate communication service cannot be performed using the ISUP relay call, there is a problem that the new reserved communication service logic should be applied to the ISUP relay call processing.

The present invention has been proposed in order to solve the above problems, and its object is not to affect the relay call processing using the ISUP, and to provide the ISDN user unit in the exchange to provide a separate communication service only by the ISUP relay call processing. The present invention provides a method for processing a relay call with an attached communication network.

1 is a block diagram showing a switching network according to the prior art,

2 is a diagram showing a relay call processing flow according to the prior art;

3 is a block diagram showing a separate communication network according to the present invention;

4 is a diagram illustrating a relay call processing flow according to the present invention.

Explanation of symbols on the main parts of the drawings

11-1, 11-2, 31-1, 31-2: regional exchange

12, 32: relay exchange

13-1, 13-2, 33-1, 33-2: general subscriber

14-1, 14-2, 34-1, 34-2: ISUP relay call service

21, 41: UPC_in block 22, 42: RCO block

23: UPC_out block 30: specified communication network

35: subscriber to a specific communication service 36: subscriber to a separate communication service

37: ARS System 38: Authentication Server

43-1: First UPC_out Block 43-2: Second UPC_out Block

A feature of the present invention for achieving the above object is the process of exchanging call establishment and release information for providing a separate communication service between the exchange and the ARS system; Exchanging special communication service authentication information between the ARS system and an authentication server using the exchange and call establishment and release information; And processing the ISUP relay call to proceed with the separate communication service.

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

As shown in FIG. 3, a separate communication network that processes a call with a separate communication network using the ISUP according to the present invention is an area in which the general subscribers 33-1 and 33-2 or the separate communication subscriber 35 exist. Switching stations 31-1 and 31-2, the relay switch 32 which interconnects the geographically separated exchanges and is connected to the ARS system 37 and the authentication server 38, and a separate communication subscriber 35 ARS system (Automatic Response System) (37) for transmitting an announcement or receiving a digit pressed by the subscriber communication unit 35, and a separate communication subscriber (35) to determine whether or not the service authentication of the subscriber communication 35 (35). It is provided with an authentication server 38 for charging the specified communication subscriber (35) with a database storing information on the < RTI ID = 0.0 >

In the above-described configuration, the method for providing the separate communication service 36 by using the ISUP relay call processing function in the relay switch 32 performs the ISUP relay call processing to provide the separate communication service 36 during the ISUP relay call processing. In the UPC block, which is a controlling software block, the ISUP relay call is re-routed using the originating subscriber authentication received from the ARS system 37 and the called subscriber information to interconnect the calling subscriber and the called subscriber.

That is, a process of exchanging call setup and release information between the relay switch 32 and the ARS system 37 using the ISUP relay call processing, and a separate communication network with the relay switch 32 (eg, the ARS system 37, authentication). The process of performing the service authentication procedure between the server (38)}, and the process of processing the ISUP relay call between the relay switch 32 and the other switch for proceeding the separate communication service (36).

Referring to the above-described process in detail, the ISUP relay call processing for providing the separate communication service 36 in the relay switch 32 is performed as shown in FIG.

When the relay switch 32 receives an IAM message including relay call connection information (e.g., relay line number, call origination number, etc.) from the first station requesting the relay switch 32 to call connection, the relay switch 32 receives the IAM message. UPC block, which is a software block that performs ISUP relay call control function, checks the validity of information included in the corresponding IAM message. If the validity of the information is verified, the UPC block generates an UPC_in block 41 to start the incoming routine. In the UPC_in block 41 generated by the UPC block, the destination number is translated using the information included in the IAM message, and the authentication request of the separate communication service 36 is requested to the ARS system 37, which is the separate communication network 30. Routing to the RCO block 42, which is a routing control software block in the relay exchange 32. Accordingly, the RCO block 42 searches for a route that can access the ARS system 37 by using the connection information with the ARS system 37 transmitted from the UPC_in block 41, and the ARS system 37 as an UPC block. It is required to occupy the outgoing line for connection. In the UPC block that receives the connection request with the ARS system 37, a first UPC_out block 43-1 is generated, and the first UPC_out block 43-1 is outgoing for connection with the ARS system 37. Occupy the moorings. Also, the first UPC_out block 43-1 occupies the outgoing relay line to the ARS system 37, and notifies the UPC_in block 41 of this. The first UPC_out block 43-1 transmits an IAM message to the ARS system 37, and transitions from the ARS system 37 to the state where the ACM message waits for reception. Upon receiving the corresponding IAM message, the ARS system 37 transmits the ACM message to the first UPC_out block 43-1 of the relay switch 32.

In addition, the ARS system 37 has an originating number information in the IAM message received from the first UPC_out block 43-1 of the relay exchange 32 and the authentication server through the TCP / IP protocol (Transmission Control Protocol / Internet Protocol). 38 requires service authentication for the originating subscriber. The authentication server 38, which has received service authentication for the originating subscriber from the ARS system 37, notifies the ARS system 37 of the service authentication using the TCP / IP protocol when the service is authenticated.

Meanwhile, the first UPC_out block 43-1 receiving the ACM message from the ARS system 37 notifies the UPC_in block 41 that the ACM message has been received and sends a USR message (User Message; User Message) from the ARS system 37. Transition to the state that can receive). The UPC_in block 41 notified of receiving the corresponding ACM message transmits the ACM message to the first station. In addition, the ARS system 37 that has received service authentication from the authentication server 38 sends the received subscriber information and the authentication result to the first UPC_out block 43-1 of the relay switch 32 to the actual originating service subscriber. The originating request is made using the included USR message. The first UPC_out block 43-1 receiving the USR message makes a request to the UPC_in block 41 with the called subscriber information included in the USR message, and the UPC_in block 41 sends the first UPC_out 43-1. After translating the called number using the called party subscriber information delivered from the Rx block and requesting rerouting to the RCO block 42, the mobile station transits to the waiting state for the ACM message reception notification. Accordingly, the RCO block 42 requests the outgoing line to be occupied by the UPC block to the corresponding foreign exchange when the called subscriber is in the foreign exchange. The UPC block generates a second UPC_out block 43-2. The second UPC_out block 43-2 transmits an IAM message to the second power station, and transitions to a state in which the ACM message can be received from the second power station. Then, when the second UPC_out block receives the ACM message from the second power, the second UPC_out block 43-2 notifies the UPC_in block 41 that the ACM message has been received. The UPC_in block 41 notified of receiving the ACM message requests the first UPC_out block 43-1 to disconnect from the ARS system 37 to recover the ISUP call. Thereby, the exchange and the ARS system 37, which may occur at the busy time when a large amount of separate communication service 36 is generated by disconnecting from the ARS system 37 before receiving the ANM message, which is a response message from the second power, Eliminate bottlenecks in the liver After receiving the connection release request from the UPC_in block 41, the first UPC_out block 43-1 transmits a REL message (Release Message) requesting the release of the connection to the ARS system 37, and then the ARS system ( 37), the state transition to the state in which the RLC message (Release Complete Message) can be received. Thereafter, the ARS system 37 transmits to the first UPC_out block an RLC message indicating that the connection is released, and the first UPC_out block receiving the RLC message is destroyed at this time. When the second UPC_out block 43-2 receives the ANM message which is a response message of the called subscriber from the second station, the second UPC_out block 43-2 receives the ANM message from the UPC_in block 41. After notifying, the state is transferred to the conversation state. The UPC_in block 41 notified of receiving the corresponding ANM message notifies the authentication server 38 to start a call using the TCP / IP protocol, and the authentication server 38 starts charging for the originating subscriber.

Although the preferred embodiments of the present invention have been described in detail above, it will be understood by those skilled in the art that the present invention may be modified or modified in various ways. Accordingly, modifications to the embodiments of the present invention will not be possible without departing from the technical scope of the present invention.

As described above, the present invention does not affect basic ISUP relay call processing in the exchange, and queries the subscriber's specific communication service authentication to the separate communication network using the corresponding relay call, and if the corresponding service is authenticated, the service of the separate communication service. There is an advantage of performing relay call processing according to the logic program.

Claims (4)

Exchanging call establishment and release information for providing a separate communication service between the exchange and the ARS system; Exchanging special communication service authentication information between the ARS system and an authentication server using the exchange and call establishment and release information; And a process of processing an ISUP relay call in order to proceed with the separate communication service. The method of claim 1, wherein exchanging call establishment and release information for providing a separate communication service between the exchange and an ARS system includes: Receiving an IAM message from a first power station; Occupying the outgoing line to the ARS system according to a routing request by using the information included in the IAM message; Transmitting an IAM message to the ARS system; And receiving an ACM message from the ARS system and transmitting an ACM message to a first power station. 6. The method of claim 1, wherein exchanging special communication service authentication information between the ARS system and the authentication server comprises: Requesting, by the ARS system, a specific communication service authentication from an authentication server; And if the authentication server authenticates a separate communication service, notifying the ARS system of the above-mentioned communication service. The method of claim 11, further comprising notifying the ARS system of the relay server. The process of claim 1, wherein the processing of the ISUP relay call to proceed with the separate communication service, Receiving a USR message from the ARS system; Occupying the outgoing line to the called subscriber by using the information included in the USR message; Sending an IAM message to a second power station; Receiving an ACM message from a second power station; Sending a REL message to the ARS system that releases the connection with the ARS system; After receiving an RLC message from the ARS system, receiving an ANM message from a second country; And transmitting the ANM message to the first station, and notifying the initiation of the call to the authentication server.