KR20050071771A - System and method for providing of called party terminal status information between communication networks - Google Patents

Abstract

The present invention relates to a system and method for providing call state information between other networks in which the caller monitors the state of the called terminal regardless of the communication network and notifies the caller when the called terminal becomes a callable state.

The present invention provides a user management unit for checking whether a calling terminal is a service subscriber when receiving a monitoring request message of a called terminal including calling terminal information and called terminal information from a calling side exchange; A called state monitoring unit for checking a callable state of the called terminal at predetermined intervals and notifying the calling terminal when the called terminal is switched to a callable state; Receiving a call state switching signal of the called terminal from the called state monitoring unit, including a call state information notification unit for transmitting a call notification message to the calling wired or wireless terminal, and monitors incoming terminal information of the state that can not be connected to the call, When the terminal is switched to the call connection state is notified to the caller, it can reduce the inconvenience of trying to connect the call even when the caller is unable to call the call to the called party.

Description

System and Method for Providing Called Party Terminal Status Information between Communication Networks}

The present invention relates to a system for providing call state information between other networks, and more particularly, when a caller fails to make a call, the other network notifies the caller when the called terminal becomes a callable state by monitoring the state of the called terminal irrespective of the communication network. The present invention relates to a system and a method for providing call reception information.

As the number of people using wired / wireless terminals increases, the number of cases in which a communication connection between a calling terminal and a called terminal cannot be performed in a communication network is increasing.

In case that the call connection between terminals is impossible, for example, when the called terminal to which the call is to be connected is connected to another calling terminal, a call congestion in which a call exceeding the network capacity or operability is input into the network at a specific time. Or trunk busy, where all of the trunk lines of the route are occupied by another subscriber's call and cannot select the trunk line.

However, there is a problem in that a network operator spends a lot of budget and time to increase the capacity of the network in order to perform a call connection between subscribers or to prepare a technical countermeasure thereof.

In addition, the terminal subscriber often attempts to make a call connection repeatedly until a call connection is made with the called terminal in a situation in which the state of the called terminal is not known in order to be connected to the called terminal which is not connected to the call.

The present invention has been made in order to solve the above-described problem, and periodically monitors the state of the terminal that can not be connected to the call, and when the call connection is switched to the state capable of providing the call state information between other networks to notify the originating terminal And technical methods to provide the method.

The present invention for achieving the above object is connected to a mobile communication network and a public switched telephone network when receiving a monitoring request message including the calling terminal information and the called terminal information that can not be connected to the call from the calling exchange, based on this without distinction to the network A system for providing call state information between other networks for monitoring a state of the called terminal,

A user management unit confirming whether the calling terminal is a service subscriber when receiving the monitoring request message of the called terminal including the calling terminal information and the called terminal information from the calling exchange; A call state monitoring unit which checks a callable state of the called terminal at predetermined intervals and notifies the caller when the called terminal is switched to a callable state; And a reception state information notification unit configured to transmit a callable notification message to the calling wired / wireless terminal when receiving a call state switching signal of the called terminal from the called state monitoring unit.

Another invention provides a public switched telephone network for communicating with a wired terminal, a base station for performing wireless section communication with a mobile communication terminal, an exchange for performing a call exchange between an originating terminal and a destination terminal, and a short message service to the mobile communication terminal. Short message service center for providing a, including the call state information providing system between the other network notifying the call terminal of the available state of the called terminal, other for providing call state information to the calling terminal without distinction to the network As a method for providing incoming state information of manganese,

A first step of receiving, from an originating exchange, a monitoring request message of the called terminal including the calling terminal information and the called terminal information in which a call connection between the calling terminal and the called terminal is impossible; A second step of monitoring a state of the called terminal by transmitting a signal to a called exchange at a preset period; As a result of the second step, if the called terminal is switched to the call-enabled state, a third step of transmitting a callable notification message to the calling terminal.

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

Reference numerals 20, 200, 220 and 240 in the present invention will be described by dividing the reference number 30, 300, 320 and 340 to the called party.

In addition, in the present invention, reference numerals 200, 220, and 240 are own networks, and reference numbers 100, 300, 320, and 340 will be described by dividing into a third party network.

1 is a diagram illustrating a connection between a reception state information providing system 400 and a communication network according to the present invention.

The incoming state information providing system 400 periodically monitors the state of the called terminal 10 and 30 to notify the calling terminal 20 when the called terminal 10 or 30 is switched to a callable state. A base station 240, 340, BTS that is in charge of wireless section communication with the side and destination mobile communication terminals 20, 30, a base station controller 220, 320, BSC, and the originating terminal 20 that control the base station; It includes a switch (200, 300, MSC) for performing a call exchange between the destination terminal 30, the PSTN / PLMN (100) for communicating with the destination side wired terminal (10).

When the calling terminal 20 attempts to call the called terminals 10 and 30, the calling side exchange 200 grasps the current state of the called terminal 20 to establish a call with the called terminals 10 and 30. .

At this time, there are three cases in which the call connection is impossible among the current states of the called terminal 20 as determined by the calling exchanger 200, but the first is a call in which the called terminal 30 is calling with another calling terminal. Busy state. In this case, the originating exchange 200 transmits a call connection request message to the called side exchange 300 to establish a call with the called terminal 30, and then through the response transmitted from the called side exchange 300. It is to grasp the current state of the called terminal 20.

When the called terminal 30 is busy, the calling side exchange 200 transmits the calling terminal 20 information and the information of the called terminal 30 to the called state information providing system 400 so that the called terminal 30 can receive the call. Monitor the status.

The second is a congestion state in which calls exceeding network capacity or operability at a specific time are entered into the network, and the third is that all relays in the route are occupied by calls from other subscribers to select a relay line. Trunk Busy.

Since the call volume congestion state and the line busy state can be immediately confirmed only by the information in the calling side exchange 200, in this case, the calling side switching station 200 is connected to the information of the calling terminal 20 and the called terminal 30. The information is transmitted to the called state information providing system 400 to periodically monitor the state of the called terminal 30.

In more detail, the terminating state information providing system 400 may include information of the originating terminal 20 and information of the terminating terminals 10 and 30 from the originating exchange 200 (for example, a mobile identification number (MIN) or In the case of a wired terminal, when receiving identification information of the terminal), the terminal stores the identification information in a database and periodically monitors the status of the called terminal 10 or 30.

The called state information providing system 400 periodically monitors the state of the called terminal 10, 30 and notifies the calling terminal 20 when the called terminal 10, 30 is switched to a callable state. At this time, the message transmitted by the call reception information system 400 to the calling terminal 20 is "the called terminal has been switched to the call connection state." Or “a call connection with the called terminal is possible.” And the like, and may be any one of a short message, a voice message, a video message, or a combination thereof. In addition, the message includes a callback URL address to enable automatic connection with the destination terminals 10 and 30.

2 is a diagram showing in detail the configuration of the reception state information providing system 400 according to the present invention.

The reception state information providing system 400 for providing the reception state information includes a control unit 450 for controlling the overall operation of the system to provide the reception state information to the calling terminal 20, the user information, and the receiving terminals 10 and 30. Database 460 for storing the monitoring results of the user, the user management unit 410 to determine whether or not the service subscriber, the incoming state monitoring unit for periodically monitoring whether or not the call of the incoming terminal (10, 30) that can not be connected to the call ( 430 and the called state information notification unit 440 for notifying the calling terminal 20 when the called terminal 10, 30 is switched to the call connection state.

In more detail, the database 460 periodically monitors the state of the user information database 462 storing the information of the service subscriber and the state of the destination terminals 10 and 30 to which the calling terminal 20 attempts to connect the call. A reception state information database 464 is stored.

When the user manager 410 receives a monitoring request signal of the called terminal 10, 30 including the calling terminal 20 information and the called terminal 10, 30 information from the calling side exchange 200, the calling terminal 20. Check whether you are a subscriber of this service.

In this case, when the user manager 410 receives the monitoring request of the called terminal from the calling exchange 200, it is any one of Busy, Congestion, and Busy Busy. For reference, during a call is a case where the called terminal 10, 30 is in a call connection with another calling terminal, and call congestion is when a call exceeding the network capacity or operability is input to the network at a specific time, and a line call is made. Middle is a case where all the relay lines of the corresponding route are occupied by another subscriber's call and thus the relay line cannot be selected.

The incoming state monitoring unit 430 transmits a call impossible guide message to the calling terminal 20 when the monitoring request message is transmitted from the user manager 410.

In addition, the called state monitoring unit 430 periodically sends a signal to the called side exchange to check the state of the called terminal 10, 30, and if the called terminal is switched to the call state, the calling terminal (10, 20) The signal is transmitted to the call state information notification unit 440 to notify the call.

When the incoming state information notifying unit 440 receives a call state switching signal of the called terminals 10 and 30 from the incoming state monitoring unit 430, the incoming state information notification unit 440 transmits a callable notification message to the calling terminal 10 and 20. In this case, the callable notification message is a callback of the called terminal 10, 30 so that the calling terminal 10, 20 can check the message that the call connection with the called terminal 10, 30 can be attempted immediately Contains a URL address.

3 is a diagram illustrating an embodiment of a method for providing call state information displayed on a screen of a wireless terminal according to the present invention, and will be described with reference to an example displayed on the calling party's wireless terminal 20.

When the called state information providing system 400 receives the corresponding originating terminal 20 information and the called terminal 10 and 30 information that the call connection with the terminating terminal 10 30 failed from the originating exchange 200, the originating terminal Send a guide message to (20).

At this time, the guidance message is shown in Figure 3 "Call with A is not possible, so if you leave a number to contact you will be notified of the incoming status later." Or "A is currently unable to make a call. Would you like to use call forwarding?" And so on.

The receiving state information providing system 400 receives a contact number transmitted from the calling terminal 20 and refers to later calling the calling state information to the caller.

Thereafter, the called state information providing system 400 checks whether the called terminal 30 can be received at a predetermined cycle, and notifies the calling terminal 20 when the called terminal 30 is switched to a callable state.

At this time, the message transmitted from the reception state information providing system 400 to the calling terminal 20, "the called terminal has been switched to the call connection state.", "Call connection with the called terminal is possible." Alternatively, as shown in Fig. 3, "You can make a call with A. If you want to make a call, please enter a confirmation button." And the form of either a short message, a voice message, a video message, or a combination thereof.

FIG. 4 is a flowchart illustrating an embodiment of a method for providing call state information according to the present invention, which will be described with reference to FIG. 3, which illustrates a call state service method displayed on the wireless terminal 20.

When the calling terminal 20 cannot make a call connection with the called terminals 10 and 30, a busy, busy call being connected to another calling terminal, a call exceeding the network capacity or operability at a specific time, is transmitted to the network. Congestion is entered or when all of the relay lines of the corresponding route are occupied by another subscriber's call, such as Trunk Busy, in which the relay line cannot be selected. A case where the caller is busy with the calling terminal will be described as an example.

When the calling side exchange 200 receives the call request message including the called terminal 30 number from the calling terminal 20 (S101), it checks the state of the called terminal 30 by transmitting it to the called side exchange 300. (S103).

The calling side exchange 200 receives state information that the called terminal 30 transmitted from the called side exchange 300 is busy with another calling terminal (Susy).

Thereafter, the calling side exchange 200 transmits a monitoring request message including the calling terminal 20 information and the called terminal 30 information to the called state information providing system 400 (S107).

When the reception state information providing system 400 receives the monitoring request message transmitted from the source exchanger 200, as shown in FIG. 3, "a call connection with A is impossible, so if you leave a number to be contacted later, I'll let you know your call forwarding information. " Or "A is currently busy. We will notify you when the call is available." Sends a message to the calling terminal 20 (S109, S111).

The called state information providing system 400 stores the terminal number transmitted from the calling terminal 20 and refers to it when transmitting the called state information later (not shown).

Thereafter, the called state monitoring unit 430 transmits a message requesting to check the state of the called terminal 30 at a predetermined cycle to the called side exchange 300 and receives a response thereto (S113 and S115).

The called state monitoring unit 430 checks the result received in step S115 to determine whether the called terminal 30 is switched to the call connection state (S117).

When the terminating terminal 30 is in a callable state as a result of checking in step S117, the terminating state information notification unit 440 sends the terminating state information (possible to connect the call of the terminating terminal 30) to the short message service center (SMSC). By transmitting (S119), the calling terminal 20 is notified that the call connection with the called terminal 30 has been switched (S121).

At this time, the called state information notification unit 440 also transmits a callback URL address including the number of the called terminal 30 to the calling terminal 20 so that a call connection with the called terminal 30 can be made later.

As a result of checking in step S117, when the called terminal 30 is not switched to the call connection state, the called state monitoring unit 430 repeats the process after step S113.

FIG. 5 is a flowchart illustrating an embodiment of a method for providing call state information according to the present invention, which will be described with reference to FIG. 3, which illustrates a call state service method displayed on a wireless terminal 20.

When the calling terminal 20 cannot make a call connection with the called terminals 10 and 30, a busy, busy call being connected to another calling terminal, a call exceeding the network capacity or operability at a specific time, is transmitted to the network. Congestion is entered or when all the trunk lines of the route are occupied by another subscriber's call so that the trunk line cannot be selected. Fig. 5 shows a case where the traffic volume is congested and the line is busy. An example will be described.

When the calling side exchange 200 receives the call request message including the called terminal 30 number from the calling terminal 20 (S201), the current calling party's own network may perform a call connection with the called terminal 30. It is checked whether or not there is a state (S203).

As a result of step S203, when the calling party's own network is congestion and trunk busy, the calling side exchange 200 monitors the monitoring request message including the calling terminal 20 information and the called terminal 30 information. Is transmitted to the reception state information providing system 400 (S205).

When the reception state information providing system 400 receives the monitoring request message transmitted from the source exchanger 200, as shown in FIG. 3, "a call connection with A is impossible, so if you leave a number to be contacted later, I'll let you know your call forwarding information. " Or "A is currently busy. We will notify you when a call is available." Send a message to the calling terminal 20 (S207, S209).

The called state information providing system 400 stores the terminal number transmitted from the calling terminal 20 and refers to it when transmitting the called state information later (not shown).

Thereafter, the called state monitoring unit 430 transmits a message requesting to check the state of the called terminal 30 at a predetermined cycle to the called side exchange 300, and receives a response thereto (S211, S213).

The called state monitoring unit 430 checks the result received in step S213 to determine whether the called terminal 30 is switched to the call connection state (S215).

When the terminating terminal 30 is in a callable state as a result of checking in step S215, the terminating state information notification unit 440 sends the terminating state information (possible to connect the call of the terminating terminal 30) to the short message service center (SMSC). By transmitting (S217), the calling terminal 20 is notified that the call connection with the called terminal 30 has been switched (S219).

At this time, the called state information notification unit 440 also transmits a callback URL address including the number of the called terminal 30 to the calling terminal 20 so that a call connection with the called terminal 30 can be made later.

As a result of checking in step S215, when the called terminal 30 is not switched to a call connection state, the called state monitoring unit 430 repeats the process after step S211.

In the detailed description of the present invention, only the case where the calling terminal is a wireless terminal has been described as an example. However, when the calling terminal is a wired terminal, the exchange in the wired network transmits and receives information with the call state information providing system to determine the state of the called terminal. You can also figure out how.

For example, the calling wired switch performs communication with the called exchange to determine the state of the called terminal, and when the called terminal is in a state where the call is impossible, the calling terminal information and the called terminal information are transferred to the called state information providing system. Request for monitoring by sending.

In addition, in the description of the method for providing the called state information of the present invention, the case where the called terminal is wireless has been described as an example. However, even when the called terminal is wired, the state of the called terminal is described in the same manner as when the called terminal is wireless. It is possible to figure out.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

As described above, the present invention monitors called terminal information in a state in which a call cannot be connected, and notifies the caller when the called terminal is switched to a callable state, so that the caller cannot call even when the call is incapable of making a call with the called party. The inconvenience of trying to connect can be reduced.

1 is a view showing the connection of the incoming call state information providing system and the communication network according to the present invention;

2 is a view showing in detail the configuration of a reception state information providing system according to the present invention;

3 is a view showing an embodiment of a method for providing call state information displayed on a screen of a wireless terminal according to the present invention;

4 is a flowchart illustrating an embodiment of a method for providing call state information according to the present invention;

5 is a flowchart illustrating another embodiment of a method for providing call state information according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: wired terminal 20, 30: wireless terminal

100: PSTN / PLMN 200, 300: exchanger (MSC)

220, 320: base station controller (BSC) 240, 340: base station (BTS)

400: incoming status information providing system 410: user management unit

430: incoming state monitoring unit 440: incoming state information notification unit

450: control unit 460: database 462: user information DB 464: incoming state information DB

Claims (6)

When receiving the monitoring request message including the calling terminal information and the called terminal information which is impossible to connect the call from the calling exchange connected to the mobile communication network and the public switched telephone network, based on this, the other network monitoring the status of the called terminal without distinguishing the network. A system for providing incoming state information of A user management unit confirming whether the calling terminal is a service subscriber when receiving the monitoring request message of the called terminal including the calling terminal information and the called terminal information from the calling exchange; A call state monitoring unit which checks a callable state of the called terminal at predetermined intervals and notifies the caller when the called terminal is switched to a callable state; And A reception state information notification unit which transmits a call reception notification message to the calling wired / wireless terminal when receiving a call state switching signal of the called terminal from the incoming state monitoring unit; Receiving state information providing system between the other manganese comprising a. According to claim 1, The state in which the call connection with the called terminal is impossible is any one of Busy, Congestion, and Trunk Busy. According to claim 1, The incoming call notification message includes a call back URL address of the called terminal. A public switched telephone network for communicating with a wired terminal, a base station for performing wireless section communication with a mobile communication terminal, an exchange for performing a call exchange between an originating terminal and a destination terminal, and a short message providing a short message service to the mobile communication terminal. A message service center and a call state between other networks for providing call state information to the call terminal without distinction between networks, including a call reception state information providing system for notifying the call terminal of the called terminal to the call terminal. As an information providing method, A first step of receiving, from an originating exchange, a monitoring request message of the called terminal including the calling terminal information and the called terminal information in which a call connection between the calling terminal and the called terminal is impossible; A second step of monitoring a state of the called terminal by transmitting a signal to a called exchange at a preset period; And A third step of transmitting a callable notification message to the calling terminal when the called terminal is switched to a callable state as a result of the second step; Method for providing the call state information between the other network to allow the calling terminal to request a call connection to the called terminal. The method of claim 4, wherein And the call forwarding notification message of the third step includes a callback URL address of the called terminal. The method of claim 4, wherein The state in which the call connection with the called terminal is impossible is any one of Busy, Congestion, and Busy Busy.