KR100376565B1 - Confirmation Method of Subscriber State of Switching System - Google Patents

Abstract

The present invention relates to a method for checking the status of a subscriber of an exchange system, so that the information on the status of a subscriber subscribed to another exchange system in a structure in which a plurality of exchange systems interoperate.

The subscriber status checking service provided by the conventional switching system can confirm the current status of other subscribers who have subscribed to the same switching system, but cannot check the status of other subscribers who have joined the other switching system.

The present invention applies a Q Signaling Protocol (QSIG protocol) to the exchange system to configure and use the message for checking the status of the subscribers subscribed to the other switching system in real time or to request the status of the subscribers subscribed to the other switching system. To confirm.

Description

Confirmation Method of Subscriber State of Switching System}

The present invention relates to a method of checking the status of subscribers of a switching system, and more particularly, to a method of checking the status of subscribers of a switching system which enables the information on the status of subscribers subscribed to other switching systems in a structure in which a plurality of switching systems interoperate with each other. It is about.

In general, the exchange system provides a subscriber status confirmation service that checks the current status (call state or idle state) of another subscriber in real time or at the request of the subscriber to the subscribers subscribed to it.

To this end, a subscriber subscribed to the switching system registers a subscriber to be checked status with a function button by using his / her multifunctional telephone.

In this state, the call controller that manages the extension terminal of the target subscriber checks the state of the target subscriber, and when a specific event (off hook or ring, etc.) occurs and a state transition occurs, the corresponding state information message is configured in real time. The control unit transmits the call control unit which manages the subscriber's multifunction telephone. The call control unit receiving the status information of the target subscriber controls the function button of the subscriber's multifunction telephone to operate the function lamp provided in the function button so that the subscriber can check the current state of the target subscriber.

If the current state request message for confirming the current state of the target subscriber is transmitted to the call control unit provided in the switching system in order to control the extension terminal of the target subscriber, the relay station connected to the switching system. The call controller receiving the message transmits the response message including the current status information of the target subscriber to the relay station. Accordingly, the relay station receives the response message and displays the current state of the target subscriber on the LCD provided in the relay station.

Although the subscriber status confirmation service provided by the conventional switching system as described above can confirm the current status of the target subscribers who have subscribed to the same switching system, there is a problem in that the status of subscribers who have subscribed to other switching systems cannot be confirmed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a service capable of confirming status information of a target subscriber subscribed to another switching system using a QSIG protocol.

1 is a block diagram illustrating an internal configuration of an exchange system supporting a QSIG protocol according to an embodiment of the present invention.

2A and 2B are flowcharts illustrating a method of confirming a state of a target subscriber in real time according to an embodiment of the present invention.

3 is a flowchart illustrating a method of confirming a current state of a target subscriber when there is a request for checking a state of a subscriber according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: exchange system 200: other exchange system

10: extension terminal 11: extension interface unit

12: call control unit 13: message handler

14: QSIG basic call control unit 15: QSIG additional call control unit

16: QSIG 3 layer processing unit 17: inter-system interface unit

The present invention for achieving the above object comprises the steps of registering a subscriber to the state check target subscribers subscribed to the other switching system interworked by the QSIG protocol to the station of its own station; Grasping the current status of the registered target subscriber in real time in the other switching system, constructing a status information message using a QSIG protocol, and transmitting the status information message to the local station; And receiving the status information message from the home station to confirm the status of the target subscriber and displaying the corresponding status information on the extension terminal in real time.

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

First of all, the present invention basically consists of an exchange system supporting the QSIG protocol.

The QSIG protocol is a protocol proposed for interworking through a leased line between a plurality of switching systems (particularly, PBXs), and is a protocol that allows constructing and using a message required for providing a service. Accordingly, a message for providing a service for checking a current status of a target subscriber subscribed to another switching system in a network interworking structure composed of switching systems supporting the QSIG protocol may be configured and used.

1 is a block diagram showing an internal configuration of an exchange system supporting a QSIG protocol according to an embodiment of the present invention.

The exchange system 100 shown in FIG. 1 includes an extension interface unit 11, a call control unit 12, a message handler 13, a QSIG basic call control unit 14, and a QSIG additional call control unit ( 15), a QSIG three-layer processing unit 16, and an inter-system interface unit 17.

Describe the function of each component.

The extension interface unit 11 provides an interface between the extension terminal 10 and the switching system 100, such as a multifunction telephone, a general telephone or a relay station.

The call control unit 12 constructs the necessary internal message and transmits it to the QSIG additional call control unit 15 through the message handler 13, and stores the state information of the target subscriber under its control, and the extension terminal 10 ) To display the current status of the target subscriber.

The message handler 13 relays all messages transmitted and received between the call control unit 12 and the QSIG basic call control unit 14 or the call control unit 12 and the QSIG additional call control unit 15, and the QSIG basic call control unit 14 ) Receives a message from the message handler 13 and transmits the message to the QSIG code control unit 15 performing the corresponding function. However, in the present invention, a message for performing a status check function is transmitted and received between the message handler 13 and the QSIG code control unit 15 directly without passing through the QSIG basic call control unit 14.

The QSIG code control unit 15 reconfigures the internal message into a message conforming to the QSIG protocol or reconfigures a message configured to conform to the QSIG protocol into an internal message, while retrieving the subscriber information table so that the target subscriber is currently switched to another exchange system 200. Determine whether you are subscribed to.

The QSIG 3-layer processing unit 16 encodes or decodes a QSIG protocol message (exactly, data constituting the message), and the inter-system interface unit 17 replaces the switching system 100 with another switching system ( 200 to provide a physical interface for interworking.

The present invention provides a method for checking the status of a target subscriber in real time, and also provides a method for checking the status of a target subscriber according to a request for checking the status of the subscriber when the status of the target subscriber is needed.

In more detail, the first present invention requires a process of first registering a target subscriber subscribed to another switching system 200 in order to check the real-time status of the target subscriber. Subscriber confirmation request message for requesting to confirm whether the subscriber is subscribed to the subscriber station, and subscriber confirmation response for confirming whether the target subscriber is currently subscribed to another switching system 200 according to the subscriber confirmation request message. Construct and use a message.

In addition, a status information message for providing information on the current status of the registered target subscriber in real time is used.

Secondly, the present invention checks whether the target subscriber is subscribed to another switching system 200 and checks the current status of the target subscriber in order to confirm the status of the subscriber according to the status check request of the subscriber. A status request message for requesting provision and a status response message for providing information on the current status of the subscriber are configured and used according to the subscriber status request message.

2A and 2B are flowcharts illustrating a method of confirming a state of a target subscriber in real time according to an embodiment of the present invention. FIG. 2A is a flowchart illustrating a process of registering a target subscriber, and FIG. 2B is registered. It is a flowchart illustrating a process of providing a status of a target subscriber in real time. Hereinafter, 'R' is displayed after the reference numerals of the respective components to distinguish the components of the other exchange system 200.

First, in order to register a target subscriber, the subscriber must register the target subscriber's telephone number in his extension terminal 10 connected to the switching system 100. In order to register the target subscriber's telephone number, FIG. Referring to the description of the target subscriber registration process.

When the subscriber enters the target subscriber's telephone number using his extension terminal 10 (S201), the inputted telephone number is the call control unit 12 of the switching system 100 that manages the extension terminal 10. The call control unit 12 receives the corresponding telephone number, and determines whether the telephone number is a telephone number subscribed to the local station (exchange system 100) (S202).

As a result of the determination, when the telephone number is a telephone number subscribed to the switching system 100, a description thereof will be omitted since a procedure for checking the status of a target subscriber subscribed to the same conventional switching system is followed. do.

However, if the telephone number is not a telephone number subscribed to the switching system 100, the call control unit 12 constructs a subscriber confirmation request message which is an internal message and uses the message handler 13 to control the QSIG additional call control unit ( 15) (S203).

The QSIG additional control unit 15 receives the subscriber confirmation request message, which is an internal message, reconfigures it into a QSIG message (that is, a subscriber confirmation request message conforming to the QSIG protocol) (S204), and then reconstructs the subscriber confirmation request to the corresponding QSIG protocol. The message is transmitted to the QSIG 3 layer processing unit 16. The QSIG three-layer processing unit 16 receives and encodes the subscriber confirmation request message reconfigured with the corresponding QSIG protocol (S205), and then joins the encoded subscriber confirmation request message to the telephone number through the inter-system interface unit 17. It is transmitted to the other exchange system 200 that has been (S206).

The QSIG 3-layer processing unit 16R of the other switching system 200 receives the encoded subscriber confirmation request message through the inter-system interface unit 17R (S211), and decodes it again (S212).

The subscriber confirmation request message decoded by the QSIG 3 layer processing unit 16R is transmitted to the QSIG code control unit 15R, and the QSIG code control unit 15R having received the decoded subscriber confirmation request message receives the internal subscriber information. After searching the table to determine whether the telephone number is currently subscribed to itself (i.e., other exchange system 200) (S213), it is determined that the telephone number is currently subscribed to another exchange system 200. If notified to the call control unit 12R having jurisdiction over the extension terminal 10R having the telephone number, it is registered as a target subscriber, while constructing a subscriber acknowledgment message configured for the QSIG protocol. 16R) (S214).

However, as a result of the subscriber information table search, if the telephone number is not currently subscribed to the other switching system 200, the registration process is terminated without registering the target subscriber.

The QSIG three-layer processing unit 16R receives and encodes the subscriber acknowledgment message (S215), and then transmits the encoded subscriber acknowledgment message to the switching system 100 through the inter-system interface unit 17R (S216). ).

The QSIG 3 layer processing unit 16 included in the switching system 100 receives the encoded subscriber acknowledgment message through the inter-system interface unit 17 (S207), and decodes it again (S208).

The decoded subscriber acknowledgment message is transmitted to the QSIG additional call control unit 15, and the QSIG additional call control unit 15 receives the subscriber acknowledgment response message and reconstructs the subscriber acknowledgment message into an internal message (S209).

The subscriber acknowledgment message reconstructed as the internal message is transmitted to the call controller 12 through the message handler 13, and the call controller 12 receiving the subscriber acknowledgment message reconstructed as the internal message is the extension terminal 10. By notifying the subscriber that the subscriber is currently subscribed to the other exchange system 200 using a tone or the like, the subscriber registration process for checking the real-time status is terminated.

2B is a flowchart illustrating a process of providing, in real time, the status of a target subscriber registered in the extension terminal 10 through the extension terminal 10.

First, the call control unit 12R, which is provided in the other switching system 200 and manages the extension terminal 10R of the target subscriber, grasps the current state of the target subscriber in real time (that is, periodically) (S301). A status information message is configured (S302).

The status information message is transmitted to the QSIG code control unit 15R through the message handler 13R, and the QSIG code control unit 15R receives the status information message and thus QSIG message (that is, the status information message conforming to the QSIG protocol). After reconstructed by the C1, it is transmitted to the QSIG 3 layer processing unit 16R (S303).

The QSIG 3-layer processing unit 16R receives and encodes the state information message reconstructed by the QSIG protocol (S304), and then transmits the encoded state information message to the switching system 100 through the inter-system interface unit 17R. If (S305), the QSIG three-layer processing unit 16 of the switching system 100 receives the encoded state information message via the inter-system interface unit 17 (S306) and decodes it again (S307).

The decoded status information message is transmitted to the QSIG code control unit 15. After receiving the decoded status information message, the QSIG code control unit 15 reconstructs the decoded status information message into an internal message (S308). In step S309, the reconfigured internal message is transmitted to the call controller 12 that manages the subscriber station 10 through the message handler 13.

The call control unit 12 receiving the reconstructed internal message notifies the current state of the target subscriber through the display unit provided in the extension terminal 10 by controlling the extension terminal 10 (S310).

3 is a flowchart illustrating a method of confirming a current status of a target subscriber when there is a request for checking the status of a subscriber according to an embodiment of the present invention.

First, when the phone number of the target subscriber is input using the extension terminal 10 (S401), the corresponding input phone number is transmitted to the call control unit 12 having jurisdiction over the extension terminal 10, and the call control unit 12 ) Receives the corresponding telephone number and first determines whether the telephone number is a telephone number subscribed to the own country (exchange system 100) (S402).

As a result of the determination, when the telephone number is not the telephone number subscribed to the switching system 100, a status request message that is an internal message is configured (S403) and the message is transmitted to the QSIG code control unit 15.

The QSIG code control unit 15 receives the status request message, reconfigures it into a QSIG message (that is, a status request message conforming to the QSIG protocol) (S404), and transmits it to the QSIG 3-layer processing unit 16. The QSIG 3 layer processing unit 16 encodes the status request message reconstructed by the QSIG protocol (S405) and transmits the encoded status request message to the other switching system 200 through the inter-system interface unit 17 (S406). ).

The QSIG 3-layer processing unit 16R of the other switching system 200 receives the encoded status request message through the inter-system interface unit 17R (S412), and then decodes it again (S413). 15R).

Upon receiving the status request message decoded by the QSIG three-layer processing unit 16R, the QSIG code control unit 15R searches the internal subscriber information table so that the target subscriber is himself (ie, another switching system 200). It is determined whether or not subscribed to (S414).

As a result of the determination, when it is confirmed that the target subscriber is currently subscribed to the other switching system 200, the call control unit 12R that manages the extension terminal 10R having the telephone number confirms the current state of the target subscriber. In step S415, a status response message as an internal message is configured based on the confirmed status information, and then transmitted to the QSIG code control unit 15R (S416).

The QSIG additional call control unit 15R, which has received the status information message from the call control unit 12R, reconstructs the status information message into a QSIG message (that is, a status information message conforming to the QSIG protocol) and the QSIG 3-layer processing unit 16R. The QSIG 3 layer processing unit 16R receives the state response message reconstructed by the QSIG protocol, encodes it (S418), and then transmits the encoded state response message to the inter-system interface unit 17R. Transfer to the exchange system 100 through (S419).

The QSIG 3-layer processing unit 16 of the switching system 100 receives the encoded status response message through the inter-system interface unit 17 (S407), decodes it again, and then QSIG the corresponding decoded status response message. It transmits to the additional code control part 15 (S408).

The QSIG additional call control unit 15 receives the decoded status response message and reconstructs it into an internal message (S409). The switching system 100 manages the subscriber station 10 through the message handler 13. And transmits it to the call control unit 12 (S410).

Receiving the reconstructed internal message, the call controller 12 controls the extension terminal 10 of the subscriber to display the current state of the target subscriber using a display unit (LED or LCD, etc.) (S411).

Although the present invention has been described in detail only with respect to the above-described embodiments, it will be apparent to those skilled in the art that modifications and variations can be made within the spirit and scope of the present invention, and such modifications or changes are not limited to the claims of the present invention. Will belong.

As described above, the present invention applies the QSIG protocol to the switching system to construct and use a message for checking the status of the subscribers subscribed to the other switching system, so that the status of the subscribers subscribed to the other switching system can be applied in real time or to the status confirmation request. To confirm.

Claims (6)

Registering a subscriber to be checked with a status that is subscribed to another switching system interworked by a QSIG protocol (Q Signaling Protocol) to an extension terminal of his / her own country; Identifying the current state of the registered target subscriber in real time in the other switching system, constructing a state information message in accordance with the QSIG protocol, and transmitting the state information message to the local station; And receiving the status information message from the local station to confirm the status of the target subscriber, and then displaying the corresponding status information on the extension terminal in real time. The method of claim 1, The registration of the target subscriber may include receiving a telephone number of the target subscriber and determining whether the target subscriber is a telephone number managed by a home country, and if not the telephone number managed by the home country, a subscriber confirmation request message conforming to the QSIG protocol. Configuring and transmitting it to the other switching system; Receiving the subscriber confirmation request message from the other switching system and determining whether the target subscriber's telephone number is a telephone number subscribed to itself; When the telephone number of the target subscriber is a telephone number subscribed to itself in the other switching system, constructing a subscriber acknowledgment message in accordance with the QSIG protocol and transmitting it to the local station; Receiving the subscriber acknowledgment message from the local station and registering the target subscriber with its extension terminal. The method of claim 2, The determining of whether the target subscriber's telephone number is a telephone number subscribed to itself by the other exchange system may include receiving a subscriber confirmation request message from the local station, and receiving an internal subscriber according to the received subscriber confirmation request message. And searching the information table and comparing the list stored in the corresponding subscriber information table with the telephone number of the target subscriber to determine whether the same telephone number exists. The method of claim 1, The displaying of the status information may include receiving a status information message composed of a message conforming to a QSIG protocol from the other switching system at the local station; Reconfiguring a status information message configured to conform to the QSIG protocol into an internal message; Checking the status of the target subscriber according to the reconfigured internal message and displaying the corresponding status information on the extension terminal. Transmitting a status request message requesting the status check of the subscriber who is subscribed to the other switching system interworked by the QSIG protocol (Q Signaling Protocol) to be compatible with the QSIG protocol in the own country and transmitting it to the corresponding switching system; ; Receiving a status request message from the local station in the other switching system, grasping the current status of the target subscriber, configuring a status response message to conform to the QSIG protocol, and transmitting the status response message to the local station; And receiving the status response message from the local station and confirming the status of the target subscriber and displaying the corresponding status information on its extension terminal. The method of claim 5, The displaying of the status information may include: receiving a status response message configured to comply with a QSIG protocol from the other switching system at the local station; Reconfiguring a status response message configured to conform to the QSIG protocol into an internal message; Checking the status of the target subscriber according to the reconfigured internal message and displaying the corresponding status information on the extension terminal.